22339 + Interview Questions in Biology in Class 11 Page 429 InterviewSolution

21401.	Question : According to Neo Darwinism change in the frequency of genes in population rise due to all. Except.
Answer» NATURAL selection Mutation Struggle for existence variation Answer :C

Discussion

21402.	Question : According to Mora et al., in 2011 , the number of estimated species on Earth is …………… .
Answer» 8.7 MILLION 9.7 million 7.7 million 9.7 BILLION ANSWER :A

Discussion

21403.	Question : According to Fritsch, the algae are classified into …………………… classes.
Answer» 10 12 11 10 Answer :C

Discussion

21404.	Question : According to folded fibre model, the diameter of chromatin fiber is
Answer» `30A^@` 230 NM `230A^@` `23A^@` Answer :C

Discussion

21405.	Question : According to Esau which virus is transported through phloem
Answer» BUNCHY TOP VIRUS CURLY top virus Tungro virus TMV Answer :B

Discussion

21406.	Question : According to David Baltimore, the viruses are classified into ……………… classes.
Answer» 6 5 7 8 Answer :C

Discussion

21407.	Question : According to Darwin, the function of calciferous glands is to
Answer» neutralize humic acid in soil EXCRETION of excess calcium SALTS DIGESTION of proteins digestion of AMYLOSE Answer :A

Discussion

21408.	Question : According to cytochrome pump theory the anions and cations are transported by _______ .
Answer» ACTIVE ABSORPTION PASSIVE absorption active and passive absorption RESPECTIVELY passive and active absorption respectively Answer :C

Discussion

21409.	Question : According to cohesion-tension-transpiration pull theory of ascent of sap, water is pulled upward through the sylem The cause of the pulls
Answer» transpiratior guttation root pressure condersation Answer :A

Discussion

21410.	Question : According to Chargaff's rule, the hydrogen bonding between adenine and thymine is ___
Answer» 2 3 4 Nil Solution :2

Discussion

21411.	Question : According to Chargaff's rule, A:T=G:C=___
Answer» 0 1 `GT1` `LT1` SOLUTION :1

Discussion

21412.	Question :According to Binomial nomenclature, Human beings are named as Homosapiens. Following this, write the binomials for Brinjal and Rosewood.
Answer» SOLUTION :BRINJAL- SOLANUM melongena ROSEWOOD- DALBERGIA latifolia

Discussion

21413.	Question : Acceptor molecule of Krebs' cycle is …………………. while the substrate molecule of Kreb's cycle is ……………. .
Answer» SOLUTION :oxala ACETIC ACID, ACETYL CO A.

Discussion

21414.	Question : Absorption of water from soil by seeds increases the "_______" thus helping seedings to come out of soil.
Answer» DPD diffusion PRESSURE imbibition pressure solute potential Solution : Imbibition is the initial step in the germination of the seeds. When mature seeds are sown in SOIL they imbibe water and swell. The water is imbibed first by seed coat and then by other tissues of embryo and endosperm. The process of imbibition is IMPORTANT ot initiate the seed germination. the pressure that an imbibant develops when submerged in pure IMBIBING liquid is called imbibition pressure.

Discussion

21415.	Question : Absorptive mode of nutriton is found in
Answer» Plantae Animalia Monera All Answer :A

Discussion

21416.	Question : Absorption of water from soil by dry seeds increases the …..., thus helping seedlings to come out of soil.
Answer» Solution :Materials of seed possess IMBIBITION (STARCH and protein). So they emerge out from SOIL through germination. Thus SEEDS swell and imbibition pressure increases. That PLAYS important role in germination.

Discussion

21417.	Question : Absorption of glycerol, fatty acids and monoglycerides takes place by
Answer» Lymph vessels WITHIN VILLI WALLS of stomach COLON CAPILLARIES within villi Solution :N/A

Discussion

21418.	Question : Absorption and adsorption
Answer» Solution :Absorption is a process in which an ion or molecule gets into a cell or BODY through a membrane. Whereas adsorption is a process is which ACCUMULATION of molecules occurs at the contact surface. It never gets into a cell or body through membrane. Absorption is not surface phenomenon and INTERMOLECULAR forces do not occur, whereas in adsorption the molecules in contact are held by intermolecular forces. Absorption helps in uptake of minerals and WATER in plants, whereas adsorption helps in imbibition of water and enzyme activity. Absorption is sometimes an endothermic process whereas adsorption is an exothermic process

Discussion

21419.	Question : Absorption of diffusible ions by cells concentration gradient is called :
Answer» PASSIVE ABSORPTION ACTIVE absorption Osmosis Donnan equilibrium Answer :B

Discussion

21420.	Question : Absence of Mglons from plant tissues results in
Answer» plasmolysis hydrolysis chlorosis necrosis Answer :C

Discussion

21421.	Question : Absence of ………… causes Diabetes inspidus.
Answer» Oxytocin ADH Prolactin Testosterone ANSWER :B

Discussion

21422.	Question : Abscission zone is characterized by
Answer» Presence of CALLOSE PLUGS Presence of a DISTINCT layer Activity of CELLULOSES and pectinases All of these Answer :A

Discussion

21423.	Question : Abscisic acid is primarily synthesized in
Answer» lisosomes Golgi complex chloroplast ribosomes Answer :C

Discussion

21424.	Question : About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and
Answer» Phosphorous and SULPHUR Sulphur and MAGNESIUM Magnesium and SODIUM Calcium and phosphorous Answer :A

Discussion

21425.	Question :About 70% of total global carbon is found in :
Answer» oceans forests GRASSLANDS agroecosystems Answer :A

Discussion

21426.	Question : About 70% of CO_(2) transport ocurs as………..ions .
Answer» SOLUTION :BICARBONATE

Discussion

21427.	Question : When 1500 mL air is in the lungs, it is called
Answer» TIDAL VOLUME Inspiratory RESERVE volume RESIDUAL volume Vital capacity Solution :Residual volume

Discussion

21428.	Question : ABIS stands for
Answer» Anatomy BEE Identification SYSTEM Automatic Bee identification system Automatic BOOK Identification system Advanced Bee Identification system Solution :Automatic Bee identification system

Discussion

21429.	Question : Abiotically produce molecule can spontaneously self assemble into droplets into droplets that enclose a watery solution and maintain a chemical environment different from their surrounding is called.
Answer» Liposomes Coacervates protobionts protoviruses Answer :C

Discussion

21430.	Question : Ability of the body to fight against the disease causing organism is called?
Answer» Vulnerability Susceptibility Irritability Immunity Answer :D

Discussion

21431.	Question : ABA stands for ......... .
Answer» Abscisic acid Ascorbic acid Acetyl BUTYRIC Acid Acetic acid Answer :A::B::C::D

Discussion

21432.	Question : ABA is ........ hormone.
Answer» SOLUTION :STRESS

Discussion

21433.	Question : ABA is called as stress hormone – Justify.
Answer» SOLUTION :It inhibits the SHOOT growth and promotes growth of root system. This CHARACTER protect the plants from WATER STRESS. Hence, ABA is called as stress hormone.

Discussion

21434.	Question : ABA acts as antagonistic to
Answer» ETHYLENE CYTOKININ GIBBERELLIC ACID IAA SOLUTION :Gibberellic acid

Discussion

21435.	Question : ABA (Abscisic Acid) is called a stress hormone.(a) How does this hormone overcome stress conditions ?(b) From where does this hormone get released in leaves ?
Answer» SOLUTION :(a) ABA hormone gives message to stomata to close down when there is scarcity of water in a plant. This way the WASTE of water is decreased by transpiration. Moreover it provides capability to PLANTS to withstand various stresses. (B) This hormone is transported in leaves from tip of the leaf.

Discussion

21436.	Question : ABA acts antagonistic to
Answer» Ethylene Cytokinin Gibberlic acid IAA Answer :C

Discussion

21437.	Question : A zwitterion also called as____ion.
Answer» DIPOLAR monopolar tripolar nonpolar Solution :Dipolar

Discussion

21438.	Question : A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out is quite yellowish. This yellow colour is due to
Answer» INTESTINAL juice BILE pigments PASSED through bile juice undigested milk PROTEIN casein pancreatic juice POURED into duodenum Answer :B

Discussion

21439.	Question : A yellow substance oozing out from wound has
Answer» Lymph + RBC + WBC Lymph + RBC + DEAD bacteria Lymph + WBC + dead bacteria Lymph + dead leucocytes Solution :Yellow SUBSTANCE oozing out of wound is in fact PUS which CONSISTS of WBC, lymph and dead cells.

Discussion

21440.	Question : (a) Write the type of fruit against the following and furnish the other information asked : Various types of fruits : Drupe, Achene, Capsella, Hesperidium, Cremocarp, Cypsella, Schizocarp (i) Cococut - Edible part (ii) Orange - Type of placentation (iii) Coriander - Type of inflorescence (b) Write the type of inflorescence against the foil owing and furnish the other information asked : Various types of inflorescence : Racemose, Umbel, Cyathium, Capitulum, Cymose (i) Euphorbia - Type of fruit (ii) Marigold - Type of fruit
Answer» Solution :(a) (i) DRUPE, Endosperm (ii) HESPERIDIUM, Alcile (supercial) (iii) CREMOCARP, COMPOUND UMBEL (b) (i) Cyathium, Syconus (ii) Head or capitulum, Cypsela

Discussion

21441.	Question :A woman with 47 chromosomes due to three copies of chromosome 21 is characterized by :
Answer» Down's syndrome Triploidy TURNER's syndrome Super femaleness Answer :A

Discussion

21442.	Question : Describe the process/ mechanism of plant cell plasmolysis with example and labelled diagram.
Answer» SOLUTION :(B) Deplasmolysis occurs if a PLANT cell is placed in solution having HIGH WATER potential.

Discussion

21443.	Question : (a)Where is electron transport system located in the cell ?(b)Differentiate between glycolysis and Krebs' cycle.
Answer» Solution :Electron transport SYSTEM is LOCATED in `F_(0)-F_(1)` particles of cristae in mitochondria.

Discussion

21444.	Question : A: When apical bud is removed, the next axial bud beings to grow out. R : High concentration of auxin in the apical bud suppresses the growth of next axial bud.
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false ANSWER :A

Discussion

21445.	Question : What is the formula for Respiratory Quotient?
Answer» Solution :(a) Formula for RESPIRATORY QUOTIENT : `RQ=("Volume of "CO_(2)" liberated")/("Volume of "O_(2)," consumed")` (b) Significances of Pentose Phosphate Pathway : 1. HMP shunt is ASSOCIATED with the generation of two important products, NADPH and pentose sugars, which play a vital role in anabolic reactions. 2. Coenzyme NADPH generated is USED for reductive biosynthesis and counter damaging the effects of oxygen free radicals.

Discussion

21446.	Question : What is plectostele? Give example.
Answer» SOLUTION :(a) PLECTOSTELE : Xylem PLATES alternates with phloem plates. e.g. LYCOPODIUM clavatum. (b)

Discussion

21447.	Question : (a) What is meant by cyclosis or cytoplasmic streaming ? Write two functions of it. (b) What do you mean by phagocytosis and pinocytosis ?
Answer» Solution :(a) AUTONOMIC movement of the matrix of cytoplasm is called CYCLOSIS or cytoplasmic streaming. The two functions of cyclosis are : (i) transport of substances from one part of the cell to another. (ii) CELLULAR movement as in WBCs. (b) Phagocytosis is the intake of solid PARTICLES by a cell. it is celled cell eating. Pinocytosis. It is the nonspecific intake of a tiny droplet of extracellular fluid by a cell cannot otherwise pass through the cell membrane.

Discussion

21448.	Question : (a) What is meant by artificial kidney ? On which principle its works ? (b) Can you suggest some safe and convenient alternative for renal failure patient ?
Answer» Solution :(a) It is a machine that is used to FILTER the blood of a person whose KIDNEYS are damaged. This machine is termed heamodialyser. (B) Kidney transplant is a better ALTERNATIVE.

Discussion

21449.	Question : (a) What is a granum (pleural grana) in a chloroplast ? How many grana are there in the matrix of each chloroplast ? (b) Name the photosynthetic pigments that are present in the thylakoid membrane of chloroplast.
Answer» Solution :(a) The infolds of the inner MEMBRANE of chloroplast become free to lie as lamellae in the matrix. These lamellae usually TAKE the form of closed, FLATTENED, ovoid sacs called thylakoids which lie closely packed in piles called GRANA. A chloroplast may have 40 to 100 grana in its matrix. (b) The thylakoid membrane contains photosynthetic pigments such as chlorophyll a , chlorophyll b, carotenoids ( carotene, xanthophylls ) andplastoquinone.

Discussion

21450.	Question :(a) Whatare the endproducts in anaerobicrespiration ? Howmuchenergyisreleasedin it? Is itconsideredwasteful process ? (b)Doesanaerobicrespirationoccur in aerobes ? Giveexample .
Answer» SOLUTION :(a) Inyeasts ,ethylalcohol and carbondioxideare theenproducts . Insomebacteriaand parasiticworms (Ascaristapeworm), LACTICACID is the endproduct. ANAEROBICRESPIRATION yields only about 5%of the energyavailablein GLUCOSE. Thusit is awastefulprocess. (b) yes . Theaerobesalsocarryon anaerobicmetabolism incertaintissues e.g., SKELETAL tissues .

Discussion

Explore topic-wise InterviewSolutions in .

Question : According to Neo Darwinism change in the frequency of genes in population rise due to all. Except.

Question : According to Mora et al., in 2011 , the number of estimated species on Earth is …………… .

Question : According to Fritsch, the algae are classified into …………………… classes.

Question : According to folded fibre model, the diameter of chromatin fiber is

Question : According to Esau which virus is transported through phloem

Question : According to David Baltimore, the viruses are classified into ……………… classes.

Question : According to Darwin, the function of calciferous glands is to

Question : According to cytochrome pump theory the anions and cations are transported by _______ .

Question : According to cohesion-tension-transpiration pull theory of ascent of sap, water is pulled upward through the sylem The cause of the pulls

Question : According to Chargaff's rule, the hydrogen bonding between adenine and thymine is ___

Question : According to Chargaff's rule, A:T=G:C=___

Question :According to Binomial nomenclature, Human beings are named as Homosapiens. Following this, write the binomials for Brinjal and Rosewood.

Question : Acceptor molecule of Krebs' cycle is …………………. while the substrate molecule of Kreb's cycle is ……………. .

Question : Absorption of water from soil by seeds increases the "_______" thus helping seedings to come out of soil.

Question : Absorptive mode of nutriton is found in

Question : Absorption of water from soil by dry seeds increases the …..., thus helping seedlings to come out of soil.

Question : Absorption of glycerol, fatty acids and monoglycerides takes place by

Question : Absorption and adsorption

Question : Absorption of diffusible ions by cells concentration gradient is called :

Question : Absence of Mglons from plant tissues results in

Question : Absence of ………… causes Diabetes inspidus.

Question : Abscission zone is characterized by

Question : Abscisic acid is primarily synthesized in

Question : About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and

Question :About 70% of total global carbon is found in :

Question : About 70% of CO_(2) transport ocurs as………..ions .

Question : When 1500 mL air is in the lungs, it is called

Question : ABIS stands for

Question : Abiotically produce molecule can spontaneously self assemble into droplets into droplets that enclose a watery solution and maintain a chemical environment different from their surrounding is called.

Question : Ability of the body to fight against the disease causing organism is called?

Question : ABA stands for ......... .

Question : ABA is ........ hormone.

Question : ABA is called as stress hormone – Justify.

Question : ABA acts as antagonistic to

Question : ABA (Abscisic Acid) is called a stress hormone.(a) How does this hormone overcome stress conditions ?(b) From where does this hormone get released in leaves ?

Question : ABA acts antagonistic to

Question : A zwitterion also called as____ion.

Question : A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out is quite yellowish. This yellow colour is due to

Question : A yellow substance oozing out from wound has

Question :A woman with 47 chromosomes due to three copies of chromosome 21 is characterized by :

Question : Describe the process/ mechanism of plant cell plasmolysis with example and labelled diagram.

Question : (a)Where is electron transport system located in the cell ?(b)Differentiate between glycolysis and Krebs' cycle.

Question : A: When apical bud is removed, the next axial bud beings to grow out. R : High concentration of auxin in the apical bud suppresses the growth of next axial bud.

Question : What is the formula for Respiratory Quotient?

Question : What is plectostele? Give example.

Question : (a) What is meant by cyclosis or cytoplasmic streaming ? Write two functions of it. (b) What do you mean by phagocytosis and pinocytosis ?

Question : (a) What is meant by artificial kidney ? On which principle its works ? (b) Can you suggest some safe and convenient alternative for renal failure patient ?

Question : (a) What is a granum (pleural grana) in a chloroplast ? How many grana are there in the matrix of each chloroplast ? (b) Name the photosynthetic pigments that are present in the thylakoid membrane of chloroplast.

Question :(a) Whatare the endproducts in anaerobicrespiration ? Howmuchenergyisreleasedin it? Is itconsideredwasteful process ? (b)Doesanaerobicrespirationoccur in aerobes ? Giveexample .