22339 + Interview Questions in Biology in Class 11 Page 338 InterviewSolution

16851.	Question : How many prothallial cell(s) is/are present in male gametophyte of Pinus ?
Answer» 4 1 2 None Solution :2 prothallial cells are PRESENT in MALE GAMETOPHYTE of Pinus.

Discussion

16852.	Question : Howmany plgments take part in photosynthesis ?
Answer» Solution :The pigments of leaves of the plant are separated by PAPER chromatography and it can be studied also. Chromatographic separation of the leaf pigments SHOWS that the colour that we see in leaves is not due to a single pigment but due to four pigments : (1) Chlorophyll a (bright or blue in the chromatogram), (2) Chlorophyll b (YELLOW green), (3) Xanthophylls (yellow colour), (4) carotenoids (yellow to yellow orange).

Discussion

16853.	Question :How many plants in the given list show axile placentation? Pea, Mustard, Dianthus, Tomato, Argemone, Chinarose, Prim rose, Lemon, Sunflower.
Answer» Two Three FOUR Five Answer :B

Discussion

16854.	Question : How many plants among Canna, Oxalis, Eichhornia, Ginger, Garlic, Lemon, What, Gladiolus and Saffron have underground modified stems ?
Answer» Three Four Five Six Solution :CANNA, OXALIS, Ginger and Gladuolus have UNDERGROUND MODIFIED STEMS.

Discussion

16855.	Question : How many pairs of wings are found in cockroach ? What isfirst pair of wings is called ?
Answer» SOLUTION :TWO pairs of wings, the first pair of wings ISKNOWN as elytra (or tegmina).

Discussion

16856.	Question :How many pairs of spiracles are found in cockroach?
Answer» 2 pairs in THORAX and 8 pairs in abdomen 1 pair in thorax and 8 pairs in abdomen 2 pairs in thorax and 6 pairs in abdomen 3 pairs in thorax and 8 pairs in abdomen Solution : 2 pairs in thorax and 8 pairs in abdomen

Discussion

16857.	Question : How many pairs of spinal nerves are present ?
Answer» SOLUTION :31 PAIRS

Discussion

16858.	Question : How many pairs of spinal nerve are found in human ?
Answer» 33 32 31 30 Answer :C

Discussion

16859.	Question :How many pairs of salivary glands are present in human?
Answer» SOLUTION :3 PAIRS.

Discussion

16860.	Question : How many pairs of cranial nerves are mixed nerves ?
Answer» 3 5 4 6 Solution :4 pairs of cranial NERVES are MIXED nerves. These are TRIGEMINAL, facial, GLOSSOPHARYNGEAL and VAGUS nerves.

Discussion

16861.	Question : How many pair of ribs are present?
Answer» SOLUTION :12 PAIRS of RIBS.

Discussion

16862.	Question : How many ovules are present in an ovary?
Answer» SOLUTION :ONE to MANY.

Discussion

16863.	Question :How many ovaries are present in a typical flower?
Answer» Solution :In syncarpous GYNOECIUM is ONE and APO carpous gynoecium is two to MANY. And ALSO in monocarpellary gynoecium it is only one.

Discussion

16864.	Question : How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Sacharomyces, Trypanosoma, Porphyra, Walfia
Answer» Three Four Five Six Answer :D

Discussion

16865.	Question : How many organisms in the list given below are autotrophs?
Answer» Four Five Six Three Answer :C

Discussion

16866.	Question : How many organisms in the list below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyce Trypanosoma, Porphyra, Wolffia
Answer» FOUR FIVE SIX THREE SOLUTION :Six

Discussion

16867.	Question : How many of the twenty two amino acids are essential for children?
Answer» 6 8 10 7 Answer :C

Discussion

16868.	Question :How many of the plants in the list given below have composite fruits that develop from inflorescence. Lycopersicon, Solanum tuberosum Artocarpus, Ficus, Ananas sativus?
Answer» FOUR FIVE THREE Two ANSWER :C

Discussion

16869.	Question : How many of the plants given below are comes under family:- Liliaceae Aloe,Asparagus, Tulip, Gloriosa, Colchicum
Answer» ANSWER :All

Discussion

16870.	Question : How many of the labeled structures are diploid with respect to the following diagram?
Answer» FOUR Five Three One Answer :A

Discussion

16871.	Question : How many number of giberellins were discovered so far?
Answer» 50 70 100 80 Solution :100

Discussion

16872.	Question : How many number of basal body rings seen in the flagella of Gram negative bacteria ?
Answer» 2 9 4 1 Answer :C

Discussion

16873.	Question : How many nucleotides are present in 170 A^(@) length of DNA?
Answer» 100 120 150 200 Answer :A

Discussion

16874.	Question : How many nuclei are present in a mature pollen?
Answer» 1 7 3 4 Answer :A

Discussion

16875.	Question : How many new species are described every year?
Answer» SOLUTION :1500 SPECIES,

Discussion

16876.	Question : How many nerve ganglia are present in cockroach?
Answer» 3 pairs of THORACIC and 6 ABDOMINAL 2 pairs of thoracic and 4 abdominal 3 pairs of thoracic and 5 abdominal 2 pairs of thoracic and 6 abdominal Solution :3 pairs of thoracic and 6 abdominal

Discussion

16877.	Question : How many molecules of ATP are produced by the oxidation of one molecule of FADH_(2) ?
Answer» SOLUTION :2 ATP MOLECULES.

Discussion

16878.	Question : How many molecules of ATP are required for synthesis of one molecule of glucose in C_3 and C_4pathways ?
Answer» SOLUTION :In `C_3`PATHWAY = 18 ATP MOLECULES In `C_4`pathway = 30 ATP molecules

Discussion

16879.	Question : How many molecules of ATP and NADPH are required to make one molecule of glucose?
Answer» Solution :18 molecules of ATP and 12 molecules of NADPH.

Discussion

16880.	Question : How many mitotic divisions must occur in a cell to form 1024 cells ?
Answer» 20 10 40 64 Answer :B

Discussion

16881.	Question : How many molecules of ATP and how many molecules of NADPH are spent to fix three molecules of CO_2 in Calvin cycle?
Answer» SOLUTION :9 ATP and 6 NADPH.

Discussion

16882.	Question : How many membranes comprise the nuclear envelope?
Answer» ONE TWO THREE NONE SOLUTION :One

Discussion

16883.	Question : How many membranes and chambers does mitochondria has ?
Answer» SOLUTION :TWO MEMBRANES - outer and INNER Two chambers - (a) Outer are between the two membranes and (b) inner are enclosed by the inner membrane.

Discussion

16884.	Question : How many meiotic divisions are required for the formation of seeds in all the mericarps in 10 schizocarpic fruits of Acacia, each fruit with 9 constrictions ?
Answer» 13 25 100 125 Answer :D

Discussion

16885.	Question : How many meiotic divisions are necessary to produce 100 pollen grains ?
Answer» 20 25 50 100 Answer :B

Discussion

16886.	Question : How many male gametes does each pollen grain contains?
Answer» SOLUTION :2 MALE GAMETES.

Discussion

16887.	Question : How many layers does membrane have by unit membrane structure?
Answer» SOLUTION :3 LAYERS.

Discussion

16888.	Question : How many laminae are present in the grey matter of spinal cord ?
Answer» Four six Eight Ten Answer :D

Discussion

16889.	Question : How many hydrogen bonds are present between complementary nitrogen bases of a DNA with 5 turns and 20 Adenines?
Answer» 130 90 100 80 Answer :A

Discussion

16890.	Question : How many hotspots are there in India? Name them.
Answer» Solution :India is home to four biodiversity hotspots (as per ENVIS). They are (a) Himalaya (The entire Indian Himalayan region) (b) WESTERN Ghats (c ) Indo - Burma : Includes entire North-eastern Indian, EXCEPT Assam and Andaman GROUP fo Islands ( And Myanmar, Thailand, Vietnam, Laos, Cambodia and Southern China) (d) Sunderlands : Includes NICOBAR goup of ISLAND ( andIndonesia, Malaysia, Singapore, Brunei, Phillippines).

Discussion

16891.	Question : How many high-energy phosphate molecules are formed from one glucose molecule ?
Answer» ANSWER :36

Discussion

16892.	Question : How manyheme moleculesare present in onemoleculeof haemoglobin ?
Answer» 1 2 3 4 Answer :D

Discussion

16893.	Question : How many H-bonds are formed between the two strands of dsDNA of 170A^(@) length if the cytosine is 20%
Answer» 130 110 120 180 Answer :A

Discussion

16894.	Question : How many generations are represented in pinus seed ?
Answer» ANSWER :THREE

Discussion

16895.	Question : How many embryo sacs are present in an ovule?
Answer» SOLUTION :GENERALLY ONE.

Discussion

16896.	Question : How many cotyledons are present in Pinus embryo ?
Answer» ANSWER :MANY COTYLEDONS

Discussion

16897.	Question : How many chromosormes are present in gymnospermic endosperm if leaf has 12 chromosomes ?
Answer» 6 12 18 24 Solution :In GYMNOSPERM, leaf/root/stem are DIPLOID so 2n=12. But ENDOSPERM is haploid and pre-fertilisation structure so it has n=6 chromosomes.

Discussion

16898.	Question : How many coded nitrogen bases are present in m-RNA from which a polypeptide chain with 60 amino acids is formed in bacteria cells, (including nonsense codon)?
Answer» 200 60 180 183 Answer :D

Discussion

16899.	Question : How many chromosome shall be present in a diploid cell at mitotic anaphase if its egg cell has ten chromosome:-
Answer» 10 (TEN) 20 (TWENTY) 30 (Thirty) 40 (Fourty) Answer :D

Discussion

16900.	Question : How many cells occurs in a human being weighing about 60 kg ?
Answer» SOLUTION :`60XX10^(15)`

Discussion

Explore topic-wise InterviewSolutions in .

Question : How many prothallial cell(s) is/are present in male gametophyte of Pinus ?

Question : Howmany plgments take part in photosynthesis ?

Question :How many plants in the given list show axile placentation? Pea, Mustard, Dianthus, Tomato, Argemone, Chinarose, Prim rose, Lemon, Sunflower.

Question : How many plants among Canna, Oxalis, Eichhornia, Ginger, Garlic, Lemon, What, Gladiolus and Saffron have underground modified stems ?

Question : How many pairs of wings are found in cockroach ? What isfirst pair of wings is called ?

Question :How many pairs of spiracles are found in cockroach?

Question : How many pairs of spinal nerves are present ?

Question : How many pairs of spinal nerve are found in human ?

Question :How many pairs of salivary glands are present in human?

Question : How many pairs of cranial nerves are mixed nerves ?

Question : How many pair of ribs are present?

Question : How many ovules are present in an ovary?

Question :How many ovaries are present in a typical flower?

Question : How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Sacharomyces, Trypanosoma, Porphyra, Walfia

Question : How many organisms in the list given below are autotrophs?

Question : How many organisms in the list below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyce Trypanosoma, Porphyra, Wolffia

Question : How many of the twenty two amino acids are essential for children?

Question :How many of the plants in the list given below have composite fruits that develop from inflorescence. Lycopersicon, Solanum tuberosum Artocarpus, Ficus, Ananas sativus?

Question : How many of the plants given below are comes under family:- Liliaceae Aloe,Asparagus, Tulip, Gloriosa, Colchicum

Question : How many of the labeled structures are diploid with respect to the following diagram?

Question : How many number of giberellins were discovered so far?

Question : How many number of basal body rings seen in the flagella of Gram negative bacteria ?

Question : How many nucleotides are present in 170 A^(@) length of DNA?

Question : How many nuclei are present in a mature pollen?

Question : How many new species are described every year?

Question : How many nerve ganglia are present in cockroach?

Question : How many molecules of ATP are produced by the oxidation of one molecule of FADH_(2) ?

Question : How many molecules of ATP are required for synthesis of one molecule of glucose in C_3 and C_4pathways ?

Question : How many molecules of ATP and NADPH are required to make one molecule of glucose?

Question : How many mitotic divisions must occur in a cell to form 1024 cells ?

Question : How many molecules of ATP and how many molecules of NADPH are spent to fix three molecules of CO_2 in Calvin cycle?

Question : How many membranes comprise the nuclear envelope?

Question : How many membranes and chambers does mitochondria has ?

Question : How many meiotic divisions are required for the formation of seeds in all the mericarps in 10 schizocarpic fruits of Acacia, each fruit with 9 constrictions ?

Question : How many meiotic divisions are necessary to produce 100 pollen grains ?

Question : How many male gametes does each pollen grain contains?

Question : How many layers does membrane have by unit membrane structure?

Question : How many laminae are present in the grey matter of spinal cord ?

Question : How many hydrogen bonds are present between complementary nitrogen bases of a DNA with 5 turns and 20 Adenines?

Question : How many hotspots are there in India? Name them.

Question : How many high-energy phosphate molecules are formed from one glucose molecule ?

Question : How manyheme moleculesare present in onemoleculeof haemoglobin ?

Question : How many H-bonds are formed between the two strands of dsDNA of 170A^(@) length if the cytosine is 20%

Question : How many generations are represented in pinus seed ?

Question : How many embryo sacs are present in an ovule?

Question : How many cotyledons are present in Pinus embryo ?

Question : How many chromosormes are present in gymnospermic endosperm if leaf has 12 chromosomes ?

Question : How many coded nitrogen bases are present in m-RNA from which a polypeptide chain with 60 amino acids is formed in bacteria cells, (including nonsense codon)?

Question : How many chromosome shall be present in a diploid cell at mitotic anaphase if its egg cell has ten chromosome:-

Question : How many cells occurs in a human being weighing about 60 kg ?