22339 + Interview Questions in Biology in Class 11 Page 440 InterviewSolution

21951.	Question : A bryophyte harbouring Nostoc colonics is
Answer» Zoopis Anthoceros Dawsonia Marchantia Answer :B

Discussion

21952.	Question : (a) Brown algae contain chlorophyll a, chlorophyll c, beta-and prop-carbotenes, xanthophylls and fucoxanthin pigments in the chromatophores. Still, these algae look brown in colour. Why ? (b) Give one example each of species of brown algae which are used as (i) food by man (ii) fodder for the sheep and goat (iii) as emulsifier in icecream etc.
Answer» Solution :(a) Brown also contain large AMOUNT ofbrown COLOURED xanthophyll-fucoxanthin which masks the green colour of chlorophylls and that is why these ALGAE appear brown in colour. (b) (i) FOOD - e.g., Lminaria saccharina. (ii) Fodder - e.g., SARGASSUM. (iii) Emulsifier - e.g., Laminaria.

Discussion

21953.	Question :A branched Raceme is called
Answer» PANICLE SPIKE Spadix Catkin Answer :A

Discussion

21954.	Question : (a) Boron deficiency leads to stout axis. following statements are true? If false correct them:
Answer» SOLUTION :(a) TRUE.

Discussion

21955.	Question : A bony fish can stay at particular depth in a sea , without expending energy in swimming is , due to the presence of
Answer» OPERCULUM air bladder SCROLL VALVE CLASPERS Answer :B

Discussion

21956.	Question : A : Blood of vertebrates is red in colour. R : Erythrocytes contain a respiratory pigment hemoglobin .
Answer» A and B both are correct and Ris correct explanation of A . A and RARE correctbut Ris notexplanationof A. A is correctand R is FALSE A and Rare false ANSWER :A

Discussion

21957.	Question : A' blood group has ..........antigen and .......... Antibody.
Answer» A, ANTI B AB, no antibodies No antigen, anti A, Anti B B Anti A Solution :B Anti A

Discussion

21958.	Question : A: Blood does not clot as leech is sucking it R : An anticoagulant hirudin from the salivary gland checks blood clotting (A) A and R both are correct and R is correct explanation of A. (B) A and R are correct but R is not explanation of A. (C) A is correct and R is false. (D) A and R are false
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

21959.	Question : A bivalent of meiosis-I consists of
Answer» TWO CHROMATIDS and ONE centromere Two chromatids and two centromere FOUR chromatids and two centromere Four chromatids and four centromere Answer :C

Discussion

21960.	Question :A bivalent of meiosis-I consists of
Answer» TWO CHROMATIDS and ONE centromere Two chromatids and two centromere Four chromatids and two centromere Four chromatids and four centromere ANSWER :C

Discussion

21961.	Question : A bisexual flower with two whorls of perianth is
Answer» INCOMPLETE Complete Zygomorphic Actinomorphic Answer :B

Discussion

21962.	Question : A bivalent is:
Answer» TWO daughter CELLS after meiosis a duplicated CHROMOSOME composed of SISTER chromatids paired homologous chromosomes a homologous chromosome Answer :C

Discussion

21963.	Question : A: Birds have pneumatic Bones R: To reduce body weight for flying in the air(A) A and R both are correct and R is correct explanation of A.(B) A and R are correct but R is not explanation of A.(C) A is correct and R is false.(D) A and R are false
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

21964.	Question : A: Birds are uricotelic R : Birds lack urinary bladder(A) A and R both are correct and R is correct explanation of A.(B) A and R are correct but R is not explanation of A.(C) A is correct and R is false.(D) A and R are false
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 :B

Discussion

21965.	Question : A bird excrates nitrogenous waste materials in the form of?
Answer» URIC acid ammonia urea amino acids Answer :A

Discussion

21966.	Question :A biparous cyme ends in uniparous cyme in
Answer» Panicle Verticellaster CYATHIUM HYPANTHODIUM ANSWER :B

Discussion

21967.	Question : A beel shaped corolla is seen in ______
Answer» PHYSALIS Datura Sunflower Bryophyllum Solution :Physalis

Discussion

21968.	Question : A band contain ……………. filaments while I contains ……………... filaments.
Answer» SOLUTION :ACTIN and MYOSIN,only actin

Discussion

21969.	Question : A ball of snow when rolled over snow increases in mass, volume and size. Is this comparable to growth as seen in living organisms ? Why?
Answer» SOLUTION :A ball of snow when ROLLED over snow increases in mass, VOLUME and size, but in this case the increase in size of ball is DUE to accumulation of material from outside. In case of living being growth happens because of accumulation of material inside the CELL of the organisms by the process of cell division leading to formation of new protoplasm and nuclear mass. Thus growth in a snowball is different as compared to the growth in living beings.

Discussion

21970.	Question :A bacterial cell divides once every minute and it takes 1 hour to fill a cup. How much time will it take to fill half the cup?
Answer» 30 MINUTES 60 minutes 29 minutes 59 minutes Answer :D

Discussion

21971.	Question : A: Bacteria, cyanobacteria and mycoplasma are prokaryotes R : Prokaryotes possess true nuclei having definite nuclear membrane.
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 :C

Discussion

21972.	Question : A baby is suffering from kwashiorkar. His parents are advised to give which type of more food to the baby?
Answer» Solution :HIGH proteins containing foods like meat, LENTILS, eggs, MILK, ETC.

Discussion

21973.	Question : A body boy aged two years is admitted to play school and passes through a dental check - up. The dentist observed that the boy had twenty teeth. Which teeth were absent
Answer» CANINES PRE- MOLARS Molars INCISORS SOLUTION :N/A

Discussion

21974.	Question : (a) B and T cells - Immune response (b) Rh antibodies -Destroys foetal RBCs (c) Lacteals- Villi (d) Lymph vessels Narrow passages
Answer» ANSWER :D

Discussion

21975.	Question : (a) As far as permeability is concerned what is the status of outer and inner mitochondrial membrane ? (b) Name the minute, regularly spaced particles present on the inner mitochondrial membrane. (c) Why are mitochondria called semiautonomus organelles ?
Answer» Solution :(a) Outer mitochondrial membrane is FREELY permeable, whereas, INNER mitochondrial membrane is semipermeable. (b) Oxysomes. (c) Mitochondria are capable of self duplication (replication) as they have their own DNA, self transcribed RNAS (rRNA. tRNAs and mRNA), robosomes and energy producing mechanism. They, however, can manufacture only some of their proteins. Hence, they are CALLED semiautonomous organelles.

Discussion

21976.	Question : (a) Ammonia _ Mammals (b) Urea - Birds (c) Uric acid - Aquatic animals (d) Muscle in the Bladder wall - Detrusor
Answer» ANSWER :(a)

Discussion

21977.	Question : A :Action spectrum of photostnthesis compares well with absorption spectrum of chlorophyll. R : Chlorophyll is the only pigment which can absorb and convert light energy into chemical energy.
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 :B

Discussion

21978.	Question : (a) Agglutinogens - Antigens (b) Agglutinin' - D-galactose (c) Rh factor- No antigens (d) Formation of clot -Protein
Answer» ANSWER :B

Discussion

21979.	Question : A: Acetylcholine transmits the nerve impulse accross a synapse. R: Acetylcholine is secreted by andrenergic neurons.
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 :C

Discussion

21980.	Question : A: ABA plays important role in plants during water stress and drought conditions. R: Exogenously applied ABA promotes stomatal closing.
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 :B

Discussion

21981.	Question : A: A virus attacking a bacterium is called bacteriophage. R: A virus attacking blue green algae is called cyanophage
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 :B

Discussion

21982.	Question : A: A fish cannot survive out of water R: It gets O_(2) from water(A) A and R both are correct and R is correct explanation of A.(B) A and R are correct but R is not explanation of A.(C) A is correct and R is false.(D) A and R are false
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

21983.	Question : A 22 years student goes to his ophthalamologist. He has problem in reading books because he is not be able to contract his
Answer» SUSPENSORY LIGAMENT pupil iris ciliary muscles Answer :D

Discussion

21984.	Question : 90% of pearl is ...........
Answer» SOLUTION :CALCIUM CARBONATE

Discussion

21985.	Question : 9 + 2 microtubular arrangement is found in Basal body/ flagellum.
Answer» SOLUTION :FLAGELLUM

Discussion

21986.	Question : 9 + 2 organisation is present in
Answer» FLAGELLA of bacteria Flagella and CILIA of EUKARYOTIC cell BASAL body Centriole and basal body Answer :B

Discussion

21987.	Question : What is the arrangement of tubules in cilia?
Answer» BACTERIAL FLAGELLA bacterial FIMBRIAE EUKARYOTIC flagella `T_4` bacteriophage Solution :eukaryotic flagella

Discussion

21988.	Question : 9 + 2 array of microtubules is found in the core of
Answer» Cilia Flagella FIMBRIAE (1) & (2) ANSWER :D

Discussion

21989.	Question : 9+2 arrangement : Cilia :: 9+0 arrangement : ________
Answer» SOLUTION :CENTRIOLE

Discussion

21990.	Question : 70s and 80s ribosomes both are present in
Answer» MITOCHONDRIA Chloroplast Prokaryotic CELLS EUKARYOTIC cells Answer :D

Discussion

21991.	Question : 3CO_(2) + 9ATP + 6NADPH + water rarr "glyceral - dehyde 3 - photosphate" + 3ADP + 6NADP^(+) + 8 pi. Anslyse the above reaction and answer the following questions : How many molecules of ATP and NADPH are required to fix one molecule of CO_(2) ? Where in the chloroplast does this process occur ?
Answer» Solution :(a) 2 MOLECULES of ATP are used for phosphorylation of one `CO_(2)and 2` molecules of NADPH are used for reduction. This Calvin CYCLE takes place in STROMA.

Discussion

21992.	Question : 33 precent of India's (Gross Domastic Product) comes from
Answer» Industry Agriculture Export Small-scale COTTAGE industries. Answer :B

Discussion

21993.	Question : 3-PGA is first stable product in
Answer» CARBON REDUCTION cycle OAA malic acid PEP Answer :A

Discussion

21994.	Question : 3
Answer» 2 4 5 Answer :C

Discussion

21995.	Question : 2n' number of chromosomes of Pyrus malus (Apple) is equal to I. The sum of '2n' number of chromosomes of Zea and '2n' number of chromosomes of Pisum II. The sum of 'n' number of chromosomes of potato and 'n' number of chromosomes of maize III. '2n' number of chromosomes of Pisum, '2n' number of chromosomes of onion and '2n' number of chromosomes of Haplopappus
Answer» I only II only III only I, II & III Answer :D

Discussion

21996.	Question : 3 different kinds of inhibitors ............... and …...
Answer» SOLUTION :inhibitor-B, abscission-II DORMIN

Discussion

21997.	Question : 2H_2O_2 overset(catalase)to 2H_2O_2 + O_2 The above reaction is catalysed by an enzyme produced by which of the following cell organelle
Answer» GLYOXYSOMES Perxisome LYSOSOME SPHEROSOMES ANSWER :B

Discussion

21998.	Question : 2H_(2)O rarr 4H^(+) + O^(2) + 4e^(-) Based on the above equation, answer the following question Where does this reaction takeplace in plants ? (b) What is the significations of this reaction ?
Answer» Solution :This reaction take place is PS-II. It is located inside of thylakoid. It is a centre of decomposition of water where electron is released from water. For that `Mn^(+)` and Ci like ions are catalysts. (b) Decomposition of water is IMPORTANT inphotosynthesis (i) `O_(2)` is released i this process. That is a main source of `O_(2)` in AIR and it is necessary for each living organism (on the earth). Hydrogen ions which are produced form NADPH by doing reduction of NADP which is a STRONG reducing agent. (iii) The `e^(-)` which are produced, enter from PS-II to PS-I by electron transport system that is required for SYNTHESIS of ATP.

Discussion

21999.	Question : 2(COOH)_(2) :
Answer» ANSWER :OXALIC ACID

Discussion

22000.	Question : 2 (C_(51) H_(98) O_(6)) :
Answer» ANSWER :TRIPALMITIN

Discussion

Explore topic-wise InterviewSolutions in .

Question : A bryophyte harbouring Nostoc colonics is

Question :A branched Raceme is called

Question : (a) Boron deficiency leads to stout axis. following statements are true? If false correct them:

Question : A bony fish can stay at particular depth in a sea , without expending energy in swimming is , due to the presence of

Question : A : Blood of vertebrates is red in colour. R : Erythrocytes contain a respiratory pigment hemoglobin .

Question : A' blood group has ..........antigen and .......... Antibody.

Question : A bivalent of meiosis-I consists of

Question :A bivalent of meiosis-I consists of

Question : A bisexual flower with two whorls of perianth is

Question : A bivalent is:

Question : A: Birds have pneumatic Bones R: To reduce body weight for flying in the air(A) A and R both are correct and R is correct explanation of A.(B) A and R are correct but R is not explanation of A.(C) A is correct and R is false.(D) A and R are false

Question : A: Birds are uricotelic R : Birds lack urinary bladder(A) A and R both are correct and R is correct explanation of A.(B) A and R are correct but R is not explanation of A.(C) A is correct and R is false.(D) A and R are false

Question : A bird excrates nitrogenous waste materials in the form of?

Question :A biparous cyme ends in uniparous cyme in

Question : A beel shaped corolla is seen in ______

Question : A band contain ……………. filaments while I contains ……………... filaments.

Question : A ball of snow when rolled over snow increases in mass, volume and size. Is this comparable to growth as seen in living organisms ? Why?

Question :A bacterial cell divides once every minute and it takes 1 hour to fill a cup. How much time will it take to fill half the cup?

Question : A: Bacteria, cyanobacteria and mycoplasma are prokaryotes R : Prokaryotes possess true nuclei having definite nuclear membrane.

Question : A baby is suffering from kwashiorkar. His parents are advised to give which type of more food to the baby?

Question : A body boy aged two years is admitted to play school and passes through a dental check - up. The dentist observed that the boy had twenty teeth. Which teeth were absent

Question : (a) B and T cells - Immune response (b) Rh antibodies -Destroys foetal RBCs (c) Lacteals- Villi (d) Lymph vessels Narrow passages

Question : (a) As far as permeability is concerned what is the status of outer and inner mitochondrial membrane ? (b) Name the minute, regularly spaced particles present on the inner mitochondrial membrane. (c) Why are mitochondria called semiautonomus organelles ?

Question : (a) Ammonia _ Mammals (b) Urea - Birds (c) Uric acid - Aquatic animals (d) Muscle in the Bladder wall - Detrusor

Question : A :Action spectrum of photostnthesis compares well with absorption spectrum of chlorophyll. R : Chlorophyll is the only pigment which can absorb and convert light energy into chemical energy.

Question : (a) Agglutinogens - Antigens (b) Agglutinin' - D-galactose (c) Rh factor- No antigens (d) Formation of clot -Protein

Question : A: Acetylcholine transmits the nerve impulse accross a synapse. R: Acetylcholine is secreted by andrenergic neurons.

Question : A: ABA plays important role in plants during water stress and drought conditions. R: Exogenously applied ABA promotes stomatal closing.

Question : A: A virus attacking a bacterium is called bacteriophage. R: A virus attacking blue green algae is called cyanophage

Question : A: A fish cannot survive out of water R: It gets O_(2) from water(A) A and R both are correct and R is correct explanation of A.(B) A and R are correct but R is not explanation of A.(C) A is correct and R is false.(D) A and R are false

Question : A 22 years student goes to his ophthalamologist. He has problem in reading books because he is not be able to contract his

Question : 90% of pearl is ...........

Question : 9 + 2 microtubular arrangement is found in Basal body/ flagellum.

Question : 9 + 2 organisation is present in

Question : What is the arrangement of tubules in cilia?

Question : 9 + 2 array of microtubules is found in the core of

Question : 9+2 arrangement : Cilia :: 9+0 arrangement : ________

Question : 70s and 80s ribosomes both are present in

Question : 33 precent of India's (Gross Domastic Product) comes from

Question : 3-PGA is first stable product in

Question : 3

Question : 3 different kinds of inhibitors ............... and …...

Question : 2H_2O_2 overset(catalase)to 2H_2O_2 + O_2 The above reaction is catalysed by an enzyme produced by which of the following cell organelle

Question : 2H_(2)O rarr 4H^(+) + O^(2) + 4e^(-) Based on the above equation, answer the following question Where does this reaction takeplace in plants ? (b) What is the significations of this reaction ?

Question : 2(COOH)_(2) :

Question : 2 (C_(51) H_(98) O_(6)) :