22339 + Interview Questions in Biology in Class 11 Page 269 InterviewSolution

13401.	Question :Oxygen liberation is absent in bacterial photosynthesis.
Answer» ANSWER :TRUE

Discussion

13402.	Question : Oxygen is necessary for breakdown of….... to release energy
Answer» SOLUTION :GLUCOSE.

Discussion

13403.	Question : Oxygen is critical for aerobic respiration. Explain its rolewith respect to ETS.
Answer» Solution :Importance of `O_(2)`in aerobic respiration : Glycolysisof glucose is DONE in cytoplasm and with that respiration begins. After that kreb.s cycleand at the end ETS goes in INNER membrane of mitochondria, `o_(2)`is required at the last in ETS. Where it acts as a hydrogen ACCEPTOR. `O_(2)` releases `e^(-)`from that process. If `O_(2)` is not PRESENT then electrons do notpass through Co enzyme. Soproton pump is not formed andATP is not formed. Thus `O_(2)`is necessary in oxidative phosphorylation.

Discussion

13404.	Question : Oxygen is an essential requirementfor aerobicrespiration but it entersthe respiratory process at the end ? Discuss.
Answer» Solution :`O_(2)` is usedfor formation of ATP in aerobicrespiration. It is a strongelectronegative elementand final acceptor. Itintakes proton in ETS medium and forms water. It obtains energyform ETS. (absorbs) `O_(2)` enters last in RESPIRATORY pathway. Its presence is necessary. Inaerobic respiration . Itremoves hydrogen and pushes theprocess forward . This WAY final hydrogen acts as a hydrogenacceptor. This way ENERGY is produced in oxidative phosphorylation which can be done by using OXIDATION REDUCTION energy.

Discussion

13405.	Question : Oxygen in carried by:
Answer» LEUCOCYTES ERYTHROCYTES PLATELETS None of these Answer :B

Discussion

13406.	Question : Oxygen haemoglobin dissociation curve will shift to right on decrease of
Answer» Acidity Carbon DIOXIDE concentration Temperature PH Solution :pH

Discussion

13407.	Question : Oxygen evolved during photosynthesis comes from
Answer» `CO _(2)` `H _(2)O` `CO _(2) and H _(2)O` SALTS Answer :B

Discussion

13408.	Question : Oxygen carrying capacity of blood is
Answer» 0.2 0.3 0.4 50%. SOLUTION :0.2

Discussion

13409.	Question : Oxygen dissociation curve is
Answer» parabolic hyperbolic sigmoid straight

Discussion

13410.	Question : Oxygen carrying capacity of blood isÂ
Answer» 0.2 0.3 0.4 0.5 Solution :SEE ANSWER for Q.44 of TOPIC 8.Â

Discussion

13411.	Question : Oxygen and carbon dioxide are transported in blood through
Answer» PLATELETS and corpuscles RBCS and WBCs WBCs and serum RBCs and PLASMA Solution :RBCs and plasma

Discussion

13412.	Question : Oxidative phosphorylation is
Answer» formation of ATP by TRANSFER of phosphate GROUP from a substrate to ADP oxidation of phosphate group in ATP Aaddition of phosphate group to ATP formation of ATP by ENERGY RELEASED from ELECTRONS during substrate oxidation. Answer :D

Discussion

13413.	Question : Ovules with pollen chamber, integument single and ovule with archegonia are found in :
Answer» CYCAS, Pinus Ephedra, Gnetum Araucaria, THUJA All of these Answer :A

Discussion

13414.	Question : Ovules are classified on the basis of the position ofmicropyle with respect to funicle.
Answer» ANSWER :1

Discussion

13415.	Question :Ovules are borne on central axis in an ovary with out septa in
Answer» Dianthus Primrose ARGEMONE 1 & 2 Answer :D

Discussion

13416.	Question : Ovule of Opuntia is called and turn at more than 360° angle, is called
Answer» circinotropous anatropous hemitropous amphitropous ANSWER :A

Discussion

13417.	Question : Ovule is inverted (resupinates at 180°) with body fused to funicle,micropyle lying close to hilum and side by side with funicle facing the placenta and is most common in Angiosperms. It is
Answer» hemitropous orthotropous anatropous CAMPYLOTROPOUS ANSWER :C

Discussion

13418.	Question : Ovule curvature is well pronounced and the embryo sac becomes horse shoe shaped. Micropyle, chalaza and funicle occur near one anther. This ovule is called
Answer» CAMPYLOTROPOUS amphitropous orthotropous ANATROPOUS ANSWER :B

Discussion

13419.	Question : Ovulation in females in under the control of
Answer» ADH and LH LH TSH and LH LTH and TSH. Solution :OVULATION in females is under the control of luteinsing hormone (LH). SECRETED by the anterior PITUITARY gland. It also STIMULATES DEVELOPMENT of corpus luteum.

Discussion

13420.	Question :Ovoviviparous pseudocoelomate parasite
Answer» is a monogenetic parasite anteriorly bear HOLD fast organs bear 1 PAIRS of equal pineal SPICULES lives in LYMPH vessels of man Answer :D

Discussion

13421.	Question : Oviparous mammals are included in
Answer» Theria Metatheria Prototheria EUTHERIA ANSWER :C

Discussion

13422.	Question : Oversecretion of thyroid results in which disease ?
Answer» SOLUTION :Exopthalmic GOITRE

Discussion

13423.	Question : Overgrazing causes
Answer» NEGATIVE pollution Positive pollution Rill erosion Reduction in CROP YIELD SOLUTION :N//A

Discussion

13424.	Question : Over production variation use and disuse origin of species
Answer» SOLUTION :Reason : It is linked to LAMARCKISM whereas the others are linked to DARWINISM.

Discussion

13425.	Question :Ovary is one chambered but become two chambered due to formation of the false septum in
Answer» MUSTARD TOMATO Lemon Pea ANSWER :A

Discussion

13426.	Question : Ovary of Lemon is
Answer» UNILOCULAR MULTILOCULAR INFERIOR Half inferior ANSWER :B

Discussion

13427.	Question : Ovary produces two groups of steriod hormones called estrogen and progesterone. Mention at least two actions of each of these two hormones in human females.
Answer» SOLUTION :Estrogen- development of secondary sexual characters and ORGANS – regulation of sexual behaviour progesterone - support PREGNANCY. Stimulate mammary GLANDS for milk SECRETION

Discussion

13428.	Question :Ovary in the flower of plum
Answer» SUPERIOR Inferior HALF superior OBLIQUE ANSWER :C

Discussion

13429.	Question :Ovary is half-inferior in the flowers of
Answer» GUAVA PLUM Brinjal Cucumber ANSWER :B

Discussion

13430.	Question : Ovary develops into fruit after fertilization. While eating an Apple which part do you eat? Explain.
Answer» Solution :APPLE belongs to false fruit. In false fruits, apart from the ovary, non-carpellary parts also DEVELOP into fruit. In apple, the thalamus develops into fleshy edible PART.

Discussion

13431.	Question : Ovary half inferior is seen in
Answer» plum china rose peach both A & C Answer :D

Discussion

13432.	Question : Ovarian follicles : estrogen :: corpus luteum: ………..
Answer» SOLUTION :PROGESTERONE

Discussion

13433.	Question : Ova with various stages of development found in
Answer» germarium VAGINA vitellarium SEMINAL receptac ANSWER :A

Discussion

13434.	Question : Outermost living limit of a plant cell is
Answer» CELL wall Plasma membrane Cytoplasm Tonoplast Answer :B

Discussion

13435.	Question : Outer wall of Spirogyra is made up of
Answer» HEMICELLULOSE and cellulose Cellulose Pectin Lignin Answer :C

Discussion

13436.	Question : Outer most layer of stele in the root is
Answer» ENDODERMIS PERICYCLE XYLEM BUNDLES Conjuctive tissue Answer :B

Discussion

13437.	Question : Outer ear : collect sound :: eustachiantube : .........
Answer» SOLUTION :equalising pressures on either sides or EAR DRUM

Discussion

13438.	Question : Outer covering of cartilage is known as:
Answer» perichondrium PERIOSTEUM ENDOSTEUM PERITONEUM SOLUTION :perichondrium

Discussion

13439.	Question : The out come of a cladistic analysis is ________
Answer» MONOGRAM MONOGRAPH CLADOGRAM Cladograph SOLUTION :Cladogram

Discussion

13440.	Question : Out of the total proposed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are
Answer» `50%` `10%` `6%` `25%` Answer :C

Discussion

13441.	Question : Out of the foolowing list,pick out the enzymes that take part in carbohydrate digestion Maltase,Lactase,Sucrase,Salivary amylase,Dextrines,Isomaltose,Lipase,Peptides.
Answer» SOLUTION :Maltase,Lactase,Sucrase,SALIVARY AMYLASE

Discussion

13442.	Question : Our reaction like aggressivebehaviour, use of abusive words, restlessness etc. are regulated by brain, name the parts involved.
Answer» SOLUTION :Inner regions of cerebral HEMISPHERE and related deep structures limbic system along with hypothalamus are involved in above mentioned functions (ABUSIVE WORDS, restlessness etc.)

Discussion

13443.	Question : Our health is affected by (a) Genetic disorders (b) Infections (c ) Life style
Answer» a only B, C only a, b only a, b, c Answer :D

Discussion

13444.	Question : 'Our understanding of the plant kingdom has changed overtime.' Do you agree with this statement?
Answer» Solution :Yes, Fungi, and members of the Monera and Protista having cell walls have now been excluded from Plantae THOUGH earlier classifications placed them in the same KINGDOM. So, the cyanobacteria that are alsoreferred to as BLUE green ALGAE are not .algae. any more.

Discussion

13445.	Question : Our fore arm is made of three different bones. Comment.
Answer» Solution :THREE different BONES are PRESENT- Humerus, RADIO ULNA, Carpals.

Discussion

13446.	Question : Other name of glycolysis is ………………… .
Answer» SOLUTION :EMP - PATHWAY

Discussion

13447.	Question : Other name for gynoecium is ……………….
Answer» carpel PISTIL style ovary Solution :pistil

Discussion

13448.	Question :Osteoporosis is an age related disease of skeletal system, may occur due to ..................
Answer» DECREASED LEVEL of oestrogen accumulation of uric acid leading to inflammation of joints immune disorder AFFECTING NEUROMUSCULAR JUNCTION leading to fatigue high concentration of `Ca^(++) and Na^(++)` Solution :decreased level of oestrogen

Discussion

13449.	Question : Osteocytes are present in the
Answer» CARTILAGE BONE notochord periosteum Answer :B

Discussion

13450.	Question : Osteoblasts function to :
Answer» destroy BONE TISSUE RELEASE calcitonin produce NEW bone during growth and repair produce blood cells Solution :produce new bone during growth and repair

Discussion

Explore topic-wise InterviewSolutions in .

Question :Oxygen liberation is absent in bacterial photosynthesis.

Question : Oxygen is necessary for breakdown of….... to release energy

Question : Oxygen is critical for aerobic respiration. Explain its rolewith respect to ETS.

Question : Oxygen is an essential requirementfor aerobicrespiration but it entersthe respiratory process at the end ? Discuss.

Question : Oxygen in carried by:

Question : Oxygen haemoglobin dissociation curve will shift to right on decrease of

Question : Oxygen evolved during photosynthesis comes from

Question : Oxygen carrying capacity of blood is

Question : Oxygen dissociation curve is

Question : Oxygen carrying capacity of blood isÂ

Question : Oxygen and carbon dioxide are transported in blood through

Question : Oxidative phosphorylation is

Question : Ovules with pollen chamber, integument single and ovule with archegonia are found in :

Question : Ovules are classified on the basis of the position ofmicropyle with respect to funicle.

Question :Ovules are borne on central axis in an ovary with out septa in

Question : Ovule of Opuntia is called and turn at more than 360° angle, is called

Question : Ovule is inverted (resupinates at 180°) with body fused to funicle,micropyle lying close to hilum and side by side with funicle facing the placenta and is most common in Angiosperms. It is

Question : Ovule curvature is well pronounced and the embryo sac becomes horse shoe shaped. Micropyle, chalaza and funicle occur near one anther. This ovule is called

Question : Ovulation in females in under the control of

Question :Ovoviviparous pseudocoelomate parasite

Question : Oviparous mammals are included in

Question : Oversecretion of thyroid results in which disease ?

Question : Overgrazing causes

Question : Over production variation use and disuse origin of species

Question :Ovary is one chambered but become two chambered due to formation of the false septum in

Question : Ovary of Lemon is

Question : Ovary produces two groups of steriod hormones called estrogen and progesterone. Mention at least two actions of each of these two hormones in human females.

Question :Ovary in the flower of plum

Question :Ovary is half-inferior in the flowers of

Question : Ovary develops into fruit after fertilization. While eating an Apple which part do you eat? Explain.

Question : Ovary half inferior is seen in

Question : Ovarian follicles : estrogen :: corpus luteum: ………..

Question : Ova with various stages of development found in

Question : Outermost living limit of a plant cell is

Question : Outer wall of Spirogyra is made up of

Question : Outer most layer of stele in the root is

Question : Outer ear : collect sound :: eustachiantube : .........

Question : Outer covering of cartilage is known as:

Question : The out come of a cladistic analysis is ________

Question : Out of the total proposed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are

Question : Out of the foolowing list,pick out the enzymes that take part in carbohydrate digestion Maltase,Lactase,Sucrase,Salivary amylase,Dextrines,Isomaltose,Lipase,Peptides.

Question : Our reaction like aggressivebehaviour, use of abusive words, restlessness etc. are regulated by brain, name the parts involved.

Question : Our health is affected by (a) Genetic disorders (b) Infections (c ) Life style

Question : 'Our understanding of the plant kingdom has changed overtime.' Do you agree with this statement?

Question : Our fore arm is made of three different bones. Comment.

Question : Other name of glycolysis is ………………… .

Question : Other name for gynoecium is ……………….

Question :Osteoporosis is an age related disease of skeletal system, may occur due to ..................

Question : Osteocytes are present in the

Question : Osteoblasts function to :