22339 + Interview Questions in Biology in Class 11 Page 412 InterviewSolution

20551.	Question : Assertion:Insulin is an anabolic hormone. Reason: A fall in blood amino acids also increaes insulin secretion.
Answer» (a) Both, Assertion and Reason, are true and Reason is the correct EXPLANATION of Assertion (b) Both, Assertion and Reason, are true but Reason is not the correct explanation of Assertion (c) If Assertion is true but Reason is false (d) If Assertion is false but Reason is true Solution :Insulin is a n anabolic hormone. It increases the synthesis of fat in the adipose TISSUE from fatty acids as WELL as glucose. It promotes protein synthesis in tissues from amono acids. It reduces catabolism of proteins and breakdonw and oxidation of fats by decreasing the enzymes which induce glucoenogenesis, insulin increases the utilisation of glucose in tissues and FACILITATES the storage of glucose as glycogen. A rise in blood glucose level and blood amino acids stimulates both synthesis and the secretion of insulin.

Discussion

20552.	Question : Assertion: Insulin stimulates glycogenolysis and gluconegensis and gluconegenesis resulting in hyperglycemia. Reason: Prolonged hyperglycemia leads to complex disorder called diabetes insipidus.
Answer» (a) Both, Assertion and REASON, are true and Reason is the correct explanation of Assertion (B) Both, Assertion and Reason, are true but Reason is not the correct explanation of Assertion (C) If Assertion is true but Reason is false (d) If Assertion is false but Reason is true Solution :Insulin stimulats conversion of glucose to glycogen (GLYCOGENESIS) in the target cells. Prolonged hyperglycemia leads to a complex disorder called diabetes mellitus.

Discussion

20553.	Question : Assertion: Insulin forms hormone receptor complex which regulate gene expression. Reason: Insulin is a peptide hormone which can easily pass cell membrane to interact with hormone-receptor complex.
Answer» (a) Both, Assertion and Reason, are true and Reason is the correct explanation of Assertion (b) Both, Assertion and Reason, are true but Reason is not the correct explanation of Assertion (c) If Assertion is true but Reason is FALSE (d) If Assertion is false but Reason is true Solution :Insulin is a protein hormone which is WATER soluble. Water so,luble hormone require extracellular receptors that generatre second messengers for carrying out their activity. Insulin binds to its specific receptor molecule LOCATED on the PLASMA membrane to form the hormone receptor complex, (HRC) which in turn generate second messengers that regulate cellular mechanism. Water soluble hormones (a.g., amono aci dderivatives, peptides and protein hormones) do not enter the target cell.

Discussion

20554.	Question : Assertion : In the senescence of leaves it is commonly found that the chloroplasts are the last organelles to show clear evidence of death. Reason :Chloroplasts are the cell organelles which carry genetic material (i.e., chloroplastic DNA)
Answer» If both ASSETION and Reason are true and the Reason is a CORRECT EXPLANATION of the Assertion If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion If Assertion is true but the Reason is false If both Assertion and Reaon are false Answer :B

Discussion

20555.	Question : Assertion. In wheat, fruit is of caryopsis type. Reason. Pericarp is fused with testa.
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

20556.	Question : Assertion: In wildlife conservation, there is no need to conserve micro-organisms. Reason: Micro-organisms are not of much importance to mankind.
Answer» If both Assertion and REASON are TRUE and Reason is a correct explanation of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but Reason is talse. If both Assertion and Reason are FALSE. ANSWER :D

Discussion

20557.	Question : Assertion. In reticulate venation, veinlets are repeatedly branched and form a complex network. Reason. In parallel venation, the veins lie parallel to each other.
Answer» If both ASSERTION and REASON are true and the Reason is a correct EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :C

Discussion

20558.	Question : Assertion: In potato tubers stem is edible. Reason: Potato tubers are full of stored food material which bear leaves and fruits on them.
Answer» If both Assertion and REASON are TRUE and Reason is a CORRECT explanation of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but Reason is talse. If both Assertion and Reason are FALSE. Answer :D

Discussion

20559.	Question : Assertion : In plants water moves from higher water potential to lower water potential.Reason : Energetically water moves form higher to lower energy.
Answer» If both ASSERTION and REASON are TRUE and Reason is correct explanation of Assertions. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :C

Discussion

20560.	Question : Assertion : In photosynthesis oxygen evolved comes from water. Reason: The evolution of oxygen and reduction of CO_2 during photosynthesis takes place due to photolysis of water
Answer» If both ASSERTION and REASON are true and Reason is CORRECT explaination of Assertion. If both Assertion and Reason are true but Reason is not correct EXPLANATION of Assertion. If Assertion is true but Reason is FALSE. If both Assertion and Reason are false. Answer :C

Discussion

20561.	Question : Assertion : In osmosis solvent moves through a semipermeable membrane from a place of lower diffusion pressure to a place of higher diffusion pressure.Reason : It is due to migration of solvent from hypertonic solution to hypotonic solution through a semipermeable membrane.
Answer» If both ASSERTION and REASON are TRUE and Reason is CORRECT EXPLANATION of Assertions. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20562.	Question : Assertion. In monocot stem, vascular bundle are arrangement in a ring. Reason. Stele is of dictyostele type.
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20563.	Question : Assertion: In large intestine, absorption of water, minerals and drugs takes place.
Answer» If both assertion and reason are true and the reason is a correct EXPLANATION of the assertion. If both assertion and reason are true but the reason is not a correct explanation of the assertion. If assertion is true but reason is false If both the assertion and reason are false. Solution :In large INTESTINE, absorption of WATER, minerals and drugs takes place. Large intestine SECRETES mucus which helps in adher-ing the WASTE particles together and an easy passage lubricating it for

Discussion

20564.	Question : Assertion : In Monera kingdom, cell wall bears unique polymers of amino sugars and amino acids called peptidoglycans. Reason : It isa derivative of phospholipids.
Answer» If both ASSERTION and Reason are true and the Reason is a CORRECT EXPLANATION of the Assertion. If bothAssertion and Reason are true but Reason is not a correct explantion of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :C

Discussion

20565.	Question : Assertion : In lotus metabolism is hindered when the leaves are coated with wax on upper surface.Reason : In lotus, stomata are present on upper epidermis, so that if leaves are coated with wax on upper surface, stomatal transpiration will not occur.
Answer» If both ASSERTION and REASON are TRUE and Reason is CORRECT EXPLANATION of Assertions. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

20566.	Question : Assertion : In frog, copulatory pads lie on the pollex digit.Reason: These copulatory pads help in transfer of sperms.
Answer» If both ASSERTION and Reason are true and Reason is CORRECT explanation of Assertion If both Assertion and Reason are true but Reason is not a correct explanation of Assertion. If Assertion is true but Reason is False If both Assertion and Reason are false Answer :D

Discussion

20567.	Question : Assertion. In family Liliaceae, perianth, stamens and carpels are present. But still it is incomplete. Reason. In complete flower calyx, corolla, androecium and gynoecium are present.
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

20568.	Question : Assertion : In earthworm, setae show perichaetine arrangement. Reason: Setae are present in a ring in middle of most of segments.
Answer» If both ASSERTION and Reason are true and Reason is correct explanation of Assertion If both Assertion and Reason are true but Reason is not a correct explanation of Assertion. If Assertion is true but Reason is False If both Assertion and Reason are false Answer :A

Discussion

20569.	Question : Assertion. In dicot stem, vascular bundles are of open type. Reason. Dicot stem bears cambium in the vascular bundles.
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

20570.	Question : Assertion: In bee society, all the memebrs are diploid except drones. Reason: Drones are produced by parthenogenesis.
Answer» If both A and R are TRUE and R is CORRECT EXPLANATION for A If both a and R are true but R is not the correct explanation for A. If A is true but R is false. If both A and R are false. Answer :A

Discussion

20571.	Question : Assertion. In bark all the cells are dead. Reason. Bark constitutes secondary cortex, epidermis, cork etc.
Answer» If both Assertion and REASON are TRUE and the Reason is a correct explanation of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :C

Discussion

20572.	Question :Assertion : In C_4 plants end product of CO_2 fixation is oxalo-acetic acid.Reason: Oxalo-acetic acid is formed in bundle sheath chloroplasts.
Answer» If both ASSERTION and REASON are TRUE and Reason is correct EXPLAINATION of Assertion. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is FALSE. If both Assertion and Reason are false. Answer :C

Discussion

20573.	Question : Assertion. In basal placentation many ovules are present. Reason. It is bilocular.
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20574.	Question : Assertion :In angiosperms the conduction of water is more efficient becausetheir xylem has vessels Reason: conduction of water by vessel elements is and active process with energy supplied byv xylem parenchyma rich in mitochondria
Answer» If both ASSERTION and reason are TRUE and the reason is a corectexplanation of the assertion If both assertion and reason are true but reason is not a correct EXPLANATION of the assertion If the assetion is true but reason is false If both the assertion and reason are false Answer :D

Discussion

20575.	Question : Assertion In angiosperms the conduction of water is more efficentbecause their xylme has vessels Reason Conductionof water by vessel elements is an active prcess with energy suppleid by xylme parecnhyma rich in mitochondira
Answer» If both Assertion and REASON are true and the Reason is a correct expanation of the Assertion If both AssertionandReason re true but REASONIS not a correct eplanatin of the Assertion If Assertion is truebut the Reason is false If both Assertion and Reason are false ANSWER :c

Discussion

20576.	Question : Assertion : In angiosperms, each of the cells of an embryo-sac (highly reduced female gametophyte) is haploid Reason : The embryo-sac formation is preceded by meiosis.
Answer» If both assertion and REASON are true and the reason is the correct explanation of the assertion If both assertion and reason are true and but reason is not the correct explanation of the assertion If assertion is true but reason is false If both assertion and reason are false Solution :In angiosperms, each of the cells of an embryo-sac (highly REDUCED female gametophyte) is HAPLOID because embryo-sac formation is PRECEDED by meiosis.

Discussion

20577.	Question : Assertion : In all C_4 plants, photorespiration takes place. Reason: In C_4 plants , respiration does not occur in dark.
Answer» If both Assertion and REASON are TRUE and Reason is correct explaination of Assertion. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20578.	Question : Assertion : In a microbial fuel cell bacteria are involvec in oxidation only. Reason: It helps to produce energy.
Answer» If both A and R are true and R is correct EXPLANATION for A If both A and R are true butR is not correct explanation for A If A is true but R is FALSE If both A and R are false Answer :D

Discussion

20579.	Question : Assertion: Immune response of old persons become weak. Reason: Thymus degenerates in old individuals.
Answer» Solution :Thymus plays a major role in the development of the IMMUNE system. This gland secretes the peptide HORMONES called thymosins. Thymosins play a major role in the differentitation of T-lymphocytes, which PROVIDE cell-mediated immunity In addition, thymosins also promote production of antibodies to provide humoral immunity Thymus id DEGENERATED in old INDIVIDUALS resulting in a decreased production of thymosins. As a result, the immune responses of old persons become weak.

Discussion

20580.	Question : Assertion: Human has dicondylic skull. Reason: Skull articulates with superior region of the vertebral column with the help of two occipital condyles.
Answer» If both assertion and reason are TURE and reason is the CORECT explanation of assertion If both assertion and reason are ture but RESON is not the CORRECT explanation of assertion If assertion is true reason is false If both assertion and reason are false Answer :a

Discussion

20581.	Question : Identify the correct assertion and reason. Assertion : Human growth hormone is produced using PCR technique. Reason : It is used to cure genetic disorders in children.
Answer» A and R are TRUE, R is the correct explanation of A A and R are true , R is not the correct explanation of A A is true , R is false Both A and R are false Answer :A::B::D

Discussion

20582.	Question : Assertion :- Humanbodyispigmentless at thetimebirth*. Reason :-pigment disappearsbeforethebirthof abody .
Answer» If bothAssertionand Reasonare trueandthe REASONIS acorrect explanation of THEASSERTION . IfbothAssertionand Reason are truebutReason isnotcorrect EXPLANATIONOF theAssertion . If Assertionistruebut theReasonis FALSE . If BothAssertionand ReasonArefalse Answer :d

Discussion

20583.	Question : Assertion: High yielding variety of rice was produced in India by introduction of dwarfing genes called Dee-goo-woo-gen from Taiwan. Reason: High yielding variety of wheat was produced from dwarfing genes of Norin-10 from Japan in India.
Answer» If both ASSERTION and Reason are TRUE and Reason is a correct EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but Reason is talse. If both Assertion and Reason are false. Answer :B

Discussion

20584.	Question : Assertion. Hearing aids help the hearing impaired to hear. Reason. They make sound travel through skull bones.
Answer» If both A and R are TRUE and R is the CORRECT EXPLANATION of A. If both A and R are true and R is not the correct explanation of A. If A is true but R is false. If both A and R are false. Solution :N//A

Discussion

20585.	Question : Assertion : Hardy Weinberg's law is applicable only based on certain assumptions. Reason : The law can be considered, if nature acts as a selective force.
Answer» A is in the and R is the covered the EXPLANATION of A A and R right but R is not CORRECT SEPARATION of A A is correct R is false Both A & B are false Answer :C

Discussion

20586.	Question : Assertion : Guttation takes place through hydathodes.Reason : Each stoma is made up of two kidney shaped guard cells in dicots.
Answer» If both ASSERTION and REASON are TRUE and Reason is correct EXPLANATION of Assertions. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :B

Discussion

20587.	Question : Assertion : Guttation takes place through hydathodes.Reason : Hydathodes are special pores present at the end of veins and water exudes out of them.
Answer» If both ASSERTION and REASON are TRUE and Reason is CORRECT EXPLANATION of Assertions. If both Assertion and Reason are true but Reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

20588.	Question : Assertion: Golden langur is a vulnerable species. Reason: Their number has reduced and their natural habitat is also disturbed.
Answer» If both ASSERTION and Reason are TRUE and Reason is a correct EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but Reason is talse. If both Assertion and Reason are false. Answer :C

Discussion

20589.	Question : Assertion : Genital papillae help in copulation in earthworm. Reason : Genital papillae lie in line with male gonopores.
Answer» If both ASSERTION and Reason are TRUE but Reason is not a correct explanation of Assertion If both Assertion and Reason are true but Reason is not a correct explanation of Assertion. If Assertion is true but Reason is False If both Assertion and Reason are false Answer :B

Discussion

20590.	Question : Assertion. Glucose oxidationis a slow process. Reason. It consists of only twosubprocesses.
Answer» If both A and R are TRUE and R is the CORRECT EXPLANATION of A. If both A and R are true but R is not the correct explanation of A. If A is true but R is false. If both A and R are false. Answer :C

Discussion

20591.	Question : Assertion : Glycerides are neutral or true fats. Reason: These are esters of fatty acids with glycerol,
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

20592.	Question : Assertion : Glycolysis takes place in the cytoplasm and produces only 2 ATP and 2 NADH.Reason : Glycolysis is anaerobic process and cannot oxidise the substrate fully.
Answer» If both Assertion and REASON are TRUE and Reason is CORRECT explanation of Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of Assertion. If Assertion is true but Reason is FALSE. If both Assertion and Reason are false. ANSWER :A

Discussion

20593.	Question :Assertion. Fruit is cypsela in Compositae. Reason. Fruit is siliqua in Cruciferae.
Answer» If both Assertion and Reason are TRUE and the Reason is a CORRECT explanation of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :B

Discussion

20594.	Question : Assertion : Function of coenzymen A is to isomerize pyruvic acid.Reason : Coenzyme A which combines with acetyl group is formed in part from one of the organic acids.
Answer» If both ASSERTION and Reason are TRUE and Reason is CORRECT explanation of Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. ANSWER :D

Discussion

20595.	Question : Assertion: For the management of wildlife, environmental pollution must be checked. Reason: Environment provides the life supporting systems to wildlife.
Answer» If both ASSERTION and Reason are TRUE and Reason is a correct explanation of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but Reason is TALSE. If both Assertion and Reason are false. ANSWER :A

Discussion

20596.	Question : Assertion. For a recipient to receive blood from a donor, the recipient's plasma must not have an antibody. Cause the donor's cells to agglutinate. Reason. The possibility of blood clumping does not depend on anti A and anti B antibody and blood type.
Answer» If both A and R are true and R is the correct EXPLANTION of A. If both A and R are true but R is not the correct EXPLANATION of A. If A is true but R is false If both A and R are false. Answer :c

Discussion

20597.	Question : Assertion. Flowers are trimerous in family Solanaceae. Reason. Stamens are three in number and carpels are six in number.
Answer» If both ASSERTION and REASON are TRUE and the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20598.	Question : Assertion. Flower is complete in Petunia. Reason. Perianth, androecium and gynoecium is present.
Answer» If both Assertion and REASON are TRUE and the Reason is a correct EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :C

Discussion

20599.	Question : Assertion: First seven pairs of ribs are called true ribs. Reason: These ribs are not connected ventrally to the sternum.
Answer» If both assertion and reason are ture and reason is the corect explanation of assertion If both assertion and reason are ture but reson is not the correct explanation of assertion If assertion is TRUE reason is false If both assertion and reason are false Solution :First seven pairs of ribs are called true ribs. Dorsally, they are attached to the thoracic VERTEBRAE and vantrally CONNECTED to the sternum with the HELP of hyaline cartilage.

Discussion

20600.	Question : Assertion: Fibrous joints play a significant role in locomotion. Reason: Fibrous joints have fluid-filled cavity between the articulating surfaces of the two bones.
Answer» If both assertion and reason are ture and reason is the corect explanation of assertion If both assertion and reason are ture but reson is not the correct explanation of assertion If assertion is true reason is false If both assertion and reason are false Solution :Fibrous joints do not allow andy movement. This type of JOINT is found in flat SKULL bones which fuse end to end with the help of dense fibrous connective tissues in the form of SUTURES, to form the CRANIUM.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Assertion:Insulin is an anabolic hormone. Reason: A fall in blood amino acids also increaes insulin secretion.

Question : Assertion: Insulin stimulates glycogenolysis and gluconegensis and gluconegenesis resulting in hyperglycemia. Reason: Prolonged hyperglycemia leads to complex disorder called diabetes insipidus.

Question : Assertion: Insulin forms hormone receptor complex which regulate gene expression. Reason: Insulin is a peptide hormone which can easily pass cell membrane to interact with hormone-receptor complex.

Question : Assertion : In the senescence of leaves it is commonly found that the chloroplasts are the last organelles to show clear evidence of death. Reason :Chloroplasts are the cell organelles which carry genetic material (i.e., chloroplastic DNA)

Question : Assertion. In wheat, fruit is of caryopsis type. Reason. Pericarp is fused with testa.

Question : Assertion: In wildlife conservation, there is no need to conserve micro-organisms. Reason: Micro-organisms are not of much importance to mankind.

Question : Assertion. In reticulate venation, veinlets are repeatedly branched and form a complex network. Reason. In parallel venation, the veins lie parallel to each other.

Question : Assertion: In potato tubers stem is edible. Reason: Potato tubers are full of stored food material which bear leaves and fruits on them.

Question : Assertion : In plants water moves from higher water potential to lower water potential.Reason : Energetically water moves form higher to lower energy.

Question : Assertion : In photosynthesis oxygen evolved comes from water. Reason: The evolution of oxygen and reduction of CO_2 during photosynthesis takes place due to photolysis of water

Question : Assertion : In osmosis solvent moves through a semipermeable membrane from a place of lower diffusion pressure to a place of higher diffusion pressure.Reason : It is due to migration of solvent from hypertonic solution to hypotonic solution through a semipermeable membrane.

Question : Assertion. In monocot stem, vascular bundle are arrangement in a ring. Reason. Stele is of dictyostele type.

Question : Assertion: In large intestine, absorption of water, minerals and drugs takes place.

Question : Assertion : In Monera kingdom, cell wall bears unique polymers of amino sugars and amino acids called peptidoglycans. Reason : It isa derivative of phospholipids.

Question : Assertion : In lotus metabolism is hindered when the leaves are coated with wax on upper surface.Reason : In lotus, stomata are present on upper epidermis, so that if leaves are coated with wax on upper surface, stomatal transpiration will not occur.

Question : Assertion : In frog, copulatory pads lie on the pollex digit.Reason: These copulatory pads help in transfer of sperms.

Question : Assertion. In family Liliaceae, perianth, stamens and carpels are present. But still it is incomplete. Reason. In complete flower calyx, corolla, androecium and gynoecium are present.

Question : Assertion : In earthworm, setae show perichaetine arrangement. Reason: Setae are present in a ring in middle of most of segments.

Question : Assertion. In dicot stem, vascular bundles are of open type. Reason. Dicot stem bears cambium in the vascular bundles.

Question : Assertion: In bee society, all the memebrs are diploid except drones. Reason: Drones are produced by parthenogenesis.

Question : Assertion. In bark all the cells are dead. Reason. Bark constitutes secondary cortex, epidermis, cork etc.

Question :Assertion : In C_4 plants end product of CO_2 fixation is oxalo-acetic acid.Reason: Oxalo-acetic acid is formed in bundle sheath chloroplasts.

Question : Assertion. In basal placentation many ovules are present. Reason. It is bilocular.

Question : Assertion :In angiosperms the conduction of water is more efficient becausetheir xylem has vessels Reason: conduction of water by vessel elements is and active process with energy supplied byv xylem parenchyma rich in mitochondria

Question : Assertion In angiosperms the conduction of water is more efficentbecause their xylme has vessels Reason Conductionof water by vessel elements is an active prcess with energy suppleid by xylme parecnhyma rich in mitochondira

Question : Assertion : In angiosperms, each of the cells of an embryo-sac (highly reduced female gametophyte) is haploid Reason : The embryo-sac formation is preceded by meiosis.

Question : Assertion : In all C_4 plants, photorespiration takes place. Reason: In C_4 plants , respiration does not occur in dark.

Question : Assertion : In a microbial fuel cell bacteria are involvec in oxidation only. Reason: It helps to produce energy.

Question : Assertion: Immune response of old persons become weak. Reason: Thymus degenerates in old individuals.

Question : Assertion: Human has dicondylic skull. Reason: Skull articulates with superior region of the vertebral column with the help of two occipital condyles.

Question : Identify the correct assertion and reason. Assertion : Human growth hormone is produced using PCR technique. Reason : It is used to cure genetic disorders in children.

Question : Assertion :- Humanbodyispigmentless at thetimebirth*. Reason :-pigment disappearsbeforethebirthof abody .

Question : Assertion: High yielding variety of rice was produced in India by introduction of dwarfing genes called Dee-goo-woo-gen from Taiwan. Reason: High yielding variety of wheat was produced from dwarfing genes of Norin-10 from Japan in India.

Question : Assertion. Hearing aids help the hearing impaired to hear. Reason. They make sound travel through skull bones.

Question : Assertion : Hardy Weinberg's law is applicable only based on certain assumptions. Reason : The law can be considered, if nature acts as a selective force.

Question : Assertion : Guttation takes place through hydathodes.Reason : Each stoma is made up of two kidney shaped guard cells in dicots.

Question : Assertion : Guttation takes place through hydathodes.Reason : Hydathodes are special pores present at the end of veins and water exudes out of them.

Question : Assertion: Golden langur is a vulnerable species. Reason: Their number has reduced and their natural habitat is also disturbed.

Question : Assertion : Genital papillae help in copulation in earthworm. Reason : Genital papillae lie in line with male gonopores.

Question : Assertion. Glucose oxidationis a slow process. Reason. It consists of only twosubprocesses.

Question : Assertion : Glycerides are neutral or true fats. Reason: These are esters of fatty acids with glycerol,

Question : Assertion : Glycolysis takes place in the cytoplasm and produces only 2 ATP and 2 NADH.Reason : Glycolysis is anaerobic process and cannot oxidise the substrate fully.

Question :Assertion. Fruit is cypsela in Compositae. Reason. Fruit is siliqua in Cruciferae.

Question : Assertion : Function of coenzymen A is to isomerize pyruvic acid.Reason : Coenzyme A which combines with acetyl group is formed in part from one of the organic acids.

Question : Assertion: For the management of wildlife, environmental pollution must be checked. Reason: Environment provides the life supporting systems to wildlife.

Question : Assertion. For a recipient to receive blood from a donor, the recipient's plasma must not have an antibody. Cause the donor's cells to agglutinate. Reason. The possibility of blood clumping does not depend on anti A and anti B antibody and blood type.

Question : Assertion. Flowers are trimerous in family Solanaceae. Reason. Stamens are three in number and carpels are six in number.

Question : Assertion. Flower is complete in Petunia. Reason. Perianth, androecium and gynoecium is present.

Question : Assertion: First seven pairs of ribs are called true ribs. Reason: These ribs are not connected ventrally to the sternum.

Question : Assertion: Fibrous joints play a significant role in locomotion. Reason: Fibrous joints have fluid-filled cavity between the articulating surfaces of the two bones.