22339 + Interview Questions in Biology in Class 11 Page 413 InterviewSolution

20601.	Question : Assertion. Fermentation is awasteful process. Reason. It yields only 5% of the energy provided by aerobic respiration.
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 :A

Discussion

20602.	Question : What is critical concentration?
Answer»

Discussion

20603.	Question : Assertion : Exotic species are introduction unintention or deliberately. Reason: They are introduced to add to the species diversity of the local population.
Answer» If both A and R are TRUE and R is correct explanation for A. If both A and R are truebut R is not the correct explanation for A. If A is true but R is FALSE. If both A and R are false. Answer :C

Discussion

20604.	Question : Assertion : Etiolated plants are formed due to lack of light. Reason: In absence of light, plants show more elongation and even chlorosis to show etiolation.
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 :A

Discussion

20605.	Question : Assertion : Euglena is a plant due to presence of chlorophyll. Reason : Euglena cannot be classified on the basis of two kingdom system.
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 explaination of Assertion If Assertion is true but Reason is FALSE . If both Assertion and Reason are false. Answer :B

Discussion

20606.	Question : Assertion : Ethylene is a gaseous phytohormone Reason :It promotes ripening of many fruits
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

20607.	Question : Assertion : Erythropoietin stimulate the bone marrow to produce more RBC. Reason : It is the haematopoietic adjustement of kidney during long term travel from mountain to sea.
Answer» Both ASSERTION and REASON are CORRECT Both Assertion and Reason are WRONG. Assertion is correct but reason is wrong Assertion is wrong but reason is correct Solution : Both Assertion and Reason are correct

Discussion

20608.	Question : Assertion : Enzymes are organic catalysts. Reason : They catalyze the chemical reactions .
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

20609.	Question : Assertion : Entry of water from soil into xylem takes place through gradient of suction pressure.Reason : Water moves froma place of higher suction pressure to a place of lower suction pressure.
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

20610.	Question : Assertion : Emphysema is the permanent abnormal inflation of air space of terminal bronchioles or alveolar sacs. Reasons : Destruction of pulmonary tissues specially alveolar septa and flattening of alveolar ducts occur in emphysema.
Answer» If both ASSERTION and REASON are TRUE and reason is the CORRECT EXPLANATION of assertion If both assertion and reason are true and reason is not the correct explanation of assertion If assertion is true but reason is false. If both assertion and reason are false. Solution :N//A

Discussion

20611.	Question : Identify the correct assertion and reason Assertion : Ecoson helpsto reduce waste water generation Reason : It works on the principle of dry composting
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::B::C::D

Discussion

20612.	Question : Assertion : Early detection of the genetic defects is possible using conventional diagnostic method like microscopic examinations, serum analysis and urine analysis. Reason : These laboratory techniques are direct and always specific.
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

Discussion

20613.	Question : Assertion : During the hydrolysis of typical chemical bonds, about 3000 calories per mole are liberated. Reason: ATP also yeilds about 3000 calories per mole after the release of any one of the two terminal phophate.
Answer» Solution :During the hydrolysis of typical chemical bonds, about 3000 CALORIES per mole are liberated. The relase of any ONE of the two terminal phosphates of ATP yields about 7300 calories per mole, instead of the 3000 calories from common chemical bonds. The standard free energy of hydrolysis of ATP to ADP and phosphate is -7.30K cal at PH 7.0 and temperature `37^(@)C` in the presence of excess `Mg^(2+)`

Discussion

20614.	Question : Assertion : During rainy season, doors made up of wood generally swell up due to imbibition.Reason : This happens due to absorption of water without forming a solution
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

20615.	Question : Assertion : Disaccharides showopticalactivity . Reason : Cellobioseis anexampleof disaccharide .
Answer» If bothassertionand Reasonare trueand THEREASON is thecorrect EXPLANATIONOF THEASSERTION . If both Assertionand Reason ate true , butthe reason is notthecorrect explanation of theassertion . If Assertionis true , but Reasonis false if bothAssertionand Reasonare false. Answer :B

Discussion

20616.	Question : Assertion : Diabetes insipidus is characterized by diuresis, polydopsia and glycosuria. Reason : There is decreased reabsorption of water and glucose in nephrons.
Answer» If both ASSERTION and REASON are TRUE and Reason is CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true but Reason is not correct explanation of the Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20617.	Question : Assertion. Deamination takes place in the hepatocytes by oxidase by oxidase enzyme, producing NH_(3). Reason. Ornithine cycle combines NH_(3) and CO_(2) to form urea in the adipocytes.
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

20618.	Question : Assertion. Dead cells also play a role in multicellular organisms. Reason. Organisms have nonfunctional cells too.
Answer» If both ASSERTION and REASON are true and Reason is the correct explanation of Assertion. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :C

Discussion

20619.	Question : Assertion. Cytochrome oxidase enzyme contains copper. Reason. Cyanide combines with the copper of cytochrome oxidase and preventsO_(2) combining with it.
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

20620.	Question : Assertion: Dark reaction occurs at night in the stroma of chloroplast. Reason: All the enzymes responsible for CO_(2) fixation remain inactive in presence of light.
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 and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is false. ANSWER :D

Discussion

20621.	Question : Assertion. Cyanide promotes oxidative phosphonylation. Reason. Cyanide is an important component of electron transport system.
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 :D

Discussion

20622.	Question : Assertion: Cotton and jute are fibre yielding plants. Reason: Cotton is obtained from seed hair (lint) and jute fibres are obtained from stalks of retted jute.
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

20623.	Question : Assertion: Cortisol produces anti-inflammatory reactions and suppresses the immune response. Reason: Cortisol stimulates gluconeogenesis, lipogenesis and proteogenesis.
Answer» SOLUTION :The aderenal cortex PRODUCES glucocorticoids which stimulate gluconeogenesis, lipolysis and proteolysis, and inhibit CELLULAR uptakes and utilisation of amino acids. In our body. Corisol is the MAIN glucocorticoid. Cortisol produces antiinflammatory REACTIONS and suppresses the immune response.

Discussion

20624.	Question : Assertion : Completion of one moleculeyields 28 molecules of ATP . Reason : Incompleteoxidationof glucose in muscle cells duringactiveexercise leadsto a buildupof ethyl alcohol.
Answer» If both Assertion and Reason are trueand Reason is a correctexplaintionof Assertion . If both assertion and Reason are tureReason are tureReason is not a CORRECT EXPLANATIONOF Assertion . If Assertion is TURE but Reason is FALSE . If both assertionand Reason are false . Answer :D

Discussion

20625.	Question : Assertion. Collateral bundles are found in stem dicotyledons and gymnosperms. Reason. Protoxylem and protophloem are located on separate radii.
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

20626.	Question : Assertion : Cold-blooded animals have no subcutaneous fat layer. Reason: Cold-blooded animals use their fat for metabolic processes during hibernation.
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

20627.	Question : Assertion : Cockroach is unisexual and shows sexual dimorphism. Reason: Male cockroach has only anal cerci while female cockroach has anal styles as well.
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 :C

Discussion

20628.	Question : Assertion : Cockroach has two pairs of legs and three pairs of wings. Reason: Legs are used to jump while wings are used to fly.
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 :D

Discussion

20629.	Question :Assertion: Cockroach has biting and chewing type mouth parts. Reason: Mandibles have teeth to cut and chew the food in cockroach.
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 :A

Discussion

20630.	Question : Assertion : CO_2 is utilized in dark reaction of photosynthesis. Reason : CO_2 as one of the raw material enters the leaves through stomata.
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 :B

Discussion

20631.	Question : Assertion : Co-extinction is always advantageous for the community. Reason: If one species dies then other species will find a new partner.
Answer» If both A and R are TRUE and R is CORRECT EXPLANATION for A. If both A and R are truebut R is not the correct explanation for A. If A is true but R is false. If both A and R are false. ANSWER :D

Discussion

20632.	Question : Assertion: Chlroine is absorbed as Cl^(-) ions. Its precise role is not well known. However, with Na^(+) and K^(+), it helps in determining solute concentration and anion-cationbalance in cells. Reason: Chlorine playsan important role in photosynthesis and takes place part in the water splitting reaction, thus releasing O_(2).
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 and Reason are true but Reason is not a correct explanation of the Assertion. If Assertion is true but the Reason is FALSE. ANSWER :A

Discussion

20633.	Question : Assertion : Chitin is a heteropolysaccharide . Reason : Chitin is a polymer of N-acetyl Glucosamine .
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

20634.	Question : Assertion : Chlorophyll is soluble in ethyl ether and acetone.Reasons : Ethyl ether and acetone are organic solvents.
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

20635.	Question : Assertion : Chloride shift is exchange of Cl^(-) of plasma and HCO_(3)^(-) of RBCs. ReasonChloride shift, maintains an acid base balance between the RBC's and plasma.
Answer» If both ASSERTION and Reason are trueand Reason is a correctexplaintionof Assertion . If both assertion and Reason are tureReason are tureReason is not a correct explanationof Assertion . If Assertion is ture but Reason is FALSE . If both assertionand Reason are false . ANSWER :B

Discussion

20636.	Question : Assertion: Chelating agents used in improving the availability of some minerals in soil are actually electron acceptors. Reasoning: They increase solubility of some minerals in acidic soils.
Answer» If both ASSERTION and REASON are TRUE and THEREASON is the correct explanation of the Assertion. If both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion. If Assertion is true, but Reason is FALSE. If both Assertion and Reason are false. Answer :B

Discussion

20637.	Question : Assertion : "Chipko Andolan" was done by women of Reni village. Reason : "Chipko Andolan" was done to protect wild life.
Answer» If both the assertion and the reason are true and the reason is a correct explanation of the assertion If both the assertion and reason are TURE but the reason is not a correct explanation of the assertion If the assertion is true but the reason is false If both the assertion and reason are false Solution :The popular 'Chipko Andolan' was started in 1973 in Gopeshwar, U.P. The villagers under the leadership of Chandi Prasad BHATT pledged that they would not PERMIT any more falling of trees. A group of women of Reni village also stopped the contractor from cutting the trees by hugging the trees whenever they were tried to cut. 'Chipko Andolan' ADVOCATES the slogan of PLANTING `5F's-`food, fodder, fuel, fibres and fertilizers trees to make communities self sufficient in all their basic needs.

Discussion

20638.	Question : Assertion : Cephalins are amino acids and on hydrolysis give ammonia and water. Reason: Cephalins are hydrolysed with H_(2)SO_(4)and HNO_(3).
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

20639.	Question : Assertion. Cerebrospinal fluid (CSF) is secreted into the brain cavities by the choroid plexuses but it occurs in the central canal of spinal cord also. Reason. The enendyma lining the central canal also secretes CSF.
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

20640.	Question : Assertion. Cell differentiation in the root tip is bidirectional. Reason. The outerwardly produced cells become part of root cap whereas the inwardly produced cells are added to the body of the root.
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 Assertionand Reason are false ANSWER :A

Discussion

20641.	Question : Assertion. Castor seed is dicot endospermic seed. Reason. Seed is with two cotyledons and unconsumed endosperm.
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

20642.	Question : Assertion. Casperian strips are formed on the inner tangential wall. Reason. In roots, epidermis is not covered by cuticle.
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 Assertionand Reason are false ANSWER :B

Discussion

20643.	Question :Assertion : Cardiac muscles contract rapidly like striated muscles but do not undergo fatigue. Reason : Cardiac muscles contract rhythmically.
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 :A

Discussion

20644.	Question : Assertion : Carbohydrates are called richest source of energy. Reason : Carbohydrates provide highest amount of energy on oxidation.
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 correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Answer :D

Discussion

20645.	Question : Assertion. Capitulum is also called racemose head. Reason. In umbel peduncle is reduced to a point.
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

20646.	Question : Assertion: Ca^(++) cannot replace H^(+) adsorbed on clay or humus particles. Reasoning: The retentive capacity of Ca^(+2) is more than that of H^(+).
Answer» If both Assertion and Reason are true and theReason is the CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion. If Assertion is true, but Reason is FALSE. If both Assertion and Reason are false. Answer :B

Discussion

20647.	Question : Assertion : C_4 plants form food more rapidly more efficiently in photosynthesis than C_3 plants. Reasons : C_4 plants have a shorter CO_2fixation cycle.
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 :A

Discussion

20648.	Question : Assertion :Camels are commonly called ship of desert. Reason : Camels have large number of water cells in their stomach to store the water for emergency function.
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 explaination of Assertion If Assertion is true but Reason is FALSE . If both Assertion and Reason are false. Answer :C

Discussion

20649.	Question : Assertion : Broad spectrum antibiotics are produced by streptomyces. Reason : They can destroy microorganisms by inhibiting DNA replication or protein synthesis.
Answer» If both the ASSERTION and the REASON are true and the reason is a correct explanation of the assertion If both the assertion and the reason are true and the reason is not a correct explanation of the assertion If the assertion is true but the reason is false If both the assertion and reason are false Solution :Steptomyces PRODUCED broad SPECTRUM of antibiotics by living microorganism CAPABLE of inhibiting or destroying other many types of microbes.

Discussion

20650.	Question : Assertion. Bract is represented by a scale, single veined called lemma in family Gramineae. Reason. Bracteole in family Gramineae is represented by two nerved pale.
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

Explore topic-wise InterviewSolutions in .

Question : Assertion. Fermentation is awasteful process. Reason. It yields only 5% of the energy provided by aerobic respiration.

Question : What is critical concentration?

Question : Assertion : Exotic species are introduction unintention or deliberately. Reason: They are introduced to add to the species diversity of the local population.

Question : Assertion : Etiolated plants are formed due to lack of light. Reason: In absence of light, plants show more elongation and even chlorosis to show etiolation.

Question : Assertion : Euglena is a plant due to presence of chlorophyll. Reason : Euglena cannot be classified on the basis of two kingdom system.

Question : Assertion : Ethylene is a gaseous phytohormone Reason :It promotes ripening of many fruits

Question : Assertion : Erythropoietin stimulate the bone marrow to produce more RBC. Reason : It is the haematopoietic adjustement of kidney during long term travel from mountain to sea.

Question : Assertion : Enzymes are organic catalysts. Reason : They catalyze the chemical reactions .

Question : Assertion : Entry of water from soil into xylem takes place through gradient of suction pressure.Reason : Water moves froma place of higher suction pressure to a place of lower suction pressure.

Question : Assertion : Emphysema is the permanent abnormal inflation of air space of terminal bronchioles or alveolar sacs. Reasons : Destruction of pulmonary tissues specially alveolar septa and flattening of alveolar ducts occur in emphysema.

Question : Identify the correct assertion and reason Assertion : Ecoson helpsto reduce waste water generation Reason : It works on the principle of dry composting

Question : Assertion : Early detection of the genetic defects is possible using conventional diagnostic method like microscopic examinations, serum analysis and urine analysis. Reason : These laboratory techniques are direct and always specific.

Question : Assertion : During the hydrolysis of typical chemical bonds, about 3000 calories per mole are liberated. Reason: ATP also yeilds about 3000 calories per mole after the release of any one of the two terminal phophate.

Question : Assertion : During rainy season, doors made up of wood generally swell up due to imbibition.Reason : This happens due to absorption of water without forming a solution

Question : Assertion : Disaccharides showopticalactivity . Reason : Cellobioseis anexampleof disaccharide .

Question : Assertion : Diabetes insipidus is characterized by diuresis, polydopsia and glycosuria. Reason : There is decreased reabsorption of water and glucose in nephrons.

Question : Assertion. Deamination takes place in the hepatocytes by oxidase by oxidase enzyme, producing NH_(3). Reason. Ornithine cycle combines NH_(3) and CO_(2) to form urea in the adipocytes.

Question : Assertion. Dead cells also play a role in multicellular organisms. Reason. Organisms have nonfunctional cells too.

Question : Assertion. Cytochrome oxidase enzyme contains copper. Reason. Cyanide combines with the copper of cytochrome oxidase and preventsO_(2) combining with it.

Question : Assertion: Dark reaction occurs at night in the stroma of chloroplast. Reason: All the enzymes responsible for CO_(2) fixation remain inactive in presence of light.

Question : Assertion. Cyanide promotes oxidative phosphonylation. Reason. Cyanide is an important component of electron transport system.

Question : Assertion: Cotton and jute are fibre yielding plants. Reason: Cotton is obtained from seed hair (lint) and jute fibres are obtained from stalks of retted jute.

Question : Assertion: Cortisol produces anti-inflammatory reactions and suppresses the immune response. Reason: Cortisol stimulates gluconeogenesis, lipogenesis and proteogenesis.

Question : Assertion : Completion of one moleculeyields 28 molecules of ATP . Reason : Incompleteoxidationof glucose in muscle cells duringactiveexercise leadsto a buildupof ethyl alcohol.

Question : Assertion. Collateral bundles are found in stem dicotyledons and gymnosperms. Reason. Protoxylem and protophloem are located on separate radii.

Question : Assertion : Cold-blooded animals have no subcutaneous fat layer. Reason: Cold-blooded animals use their fat for metabolic processes during hibernation.

Question : Assertion : Cockroach is unisexual and shows sexual dimorphism. Reason: Male cockroach has only anal cerci while female cockroach has anal styles as well.

Question : Assertion : Cockroach has two pairs of legs and three pairs of wings. Reason: Legs are used to jump while wings are used to fly.

Question :Assertion: Cockroach has biting and chewing type mouth parts. Reason: Mandibles have teeth to cut and chew the food in cockroach.

Question : Assertion : CO_2 is utilized in dark reaction of photosynthesis. Reason : CO_2 as one of the raw material enters the leaves through stomata.

Question : Assertion : Co-extinction is always advantageous for the community. Reason: If one species dies then other species will find a new partner.

Question : Assertion : Chitin is a heteropolysaccharide . Reason : Chitin is a polymer of N-acetyl Glucosamine .

Question : Assertion : Chlorophyll is soluble in ethyl ether and acetone.Reasons : Ethyl ether and acetone are organic solvents.

Question : Assertion : Chloride shift is exchange of Cl^(-) of plasma and HCO_(3)^(-) of RBCs. ReasonChloride shift, maintains an acid base balance between the RBC's and plasma.

Question : Assertion: Chelating agents used in improving the availability of some minerals in soil are actually electron acceptors. Reasoning: They increase solubility of some minerals in acidic soils.

Question : Assertion : "Chipko Andolan" was done by women of Reni village. Reason : "Chipko Andolan" was done to protect wild life.

Question : Assertion : Cephalins are amino acids and on hydrolysis give ammonia and water. Reason: Cephalins are hydrolysed with H_(2)SO_(4)and HNO_(3).

Question : Assertion. Cerebrospinal fluid (CSF) is secreted into the brain cavities by the choroid plexuses but it occurs in the central canal of spinal cord also. Reason. The enendyma lining the central canal also secretes CSF.

Question : Assertion. Cell differentiation in the root tip is bidirectional. Reason. The outerwardly produced cells become part of root cap whereas the inwardly produced cells are added to the body of the root.

Question : Assertion. Castor seed is dicot endospermic seed. Reason. Seed is with two cotyledons and unconsumed endosperm.

Question : Assertion. Casperian strips are formed on the inner tangential wall. Reason. In roots, epidermis is not covered by cuticle.

Question :Assertion : Cardiac muscles contract rapidly like striated muscles but do not undergo fatigue. Reason : Cardiac muscles contract rhythmically.

Question : Assertion : Carbohydrates are called richest source of energy. Reason : Carbohydrates provide highest amount of energy on oxidation.

Question : Assertion. Capitulum is also called racemose head. Reason. In umbel peduncle is reduced to a point.

Question : Assertion: Ca^(++) cannot replace H^(+) adsorbed on clay or humus particles. Reasoning: The retentive capacity of Ca^(+2) is more than that of H^(+).

Question : Assertion : C_4 plants form food more rapidly more efficiently in photosynthesis than C_3 plants. Reasons : C_4 plants have a shorter CO_2fixation cycle.

Question : Assertion :Camels are commonly called ship of desert. Reason : Camels have large number of water cells in their stomach to store the water for emergency function.

Question : Assertion : Broad spectrum antibiotics are produced by streptomyces. Reason : They can destroy microorganisms by inhibiting DNA replication or protein synthesis.

Question : Assertion. Bract is represented by a scale, single veined called lemma in family Gramineae. Reason. Bracteole in family Gramineae is represented by two nerved pale.