22339 + Interview Questions in Biology in Class 11 Page 188 InterviewSolution

9351.	Question : Thermoregulatory glands present in the skin of mammals are
Answer» SEBACEOUS sudoriferous GLANDS MAMMARY glands uropygial glands ANSWER :B

Discussion

9352.	Question : Thermoregulatory centre of human body is associate with
Answer» cerebrum cerebellum hypothalamus medulla oblongata Answer :C

Discussion

9353.	Question : Thermorecepters of cockroach occur on
Answer» 2,3rd SEGMENTS of TARSUS 1,2,3 segments of tarsus 2,3,4 segments of tarsus all the above Answer :B

Discussion

9354.	Question : There is no natural death in single celled organisms like Amoeba and bacteria because
Answer» they can'not REPRODUCE sexually They reproduce by BINARY fission Parental BODY is distributed AMONG the offspring They are microscopic Answer :C

Discussion

9355.	Question : There is no DNA in
Answer» Mature RBC's A mature SPERMATOZOAN Hair root An ENUCLEATED ovum Answer :A

Discussion

9356.	Question : There is no DNA in :
Answer» An ENUCLEATED ovum MATURE RBCs Mature spermatozoan Hair root ANSWER :B

Discussion

9357.	Question : There is no DNAin ........... .
Answer» MATURE RBC'S Mature spermatozoa Hair root Ovum Answer :A

Discussion

9358.	Question : There is no connection between sequential neurons, but nerve impulse is conducted through it.
Answer» Solution :At the end of branched axon, knob like SWOLLEN structure is present. It contains SECRETORY vesicles and produces neurotransmitter substance - acetyl CHOLINE. Acetyl choline is responsible for conduction of nerve impulse through synaptic CLEFT.

Discussion

9359.	Question : There is much variation in the shape of chlorohoplast among the algae of
Answer» Rhodophycea Phaeophyceae Chlorophyceae XANTHOPHYCEAE ANSWER :C

Discussion

9360.	Question : There is a myth that immediately after heavy rains in forest, mushrooms appear in large number and make a very large ring or circle, which may be several metres in diameter. These are called as "fairy rings". Can you explain this myth of fairy rings in biological terms ? Discuss the mycilial structure in Agaricus and its soil borne nature.
Answer» Solution :The FAIRY rings form as the MYCELIUM of the mushroom fungus spreads in the soil from a central point. It grows peripherally, so that the younger hyphae will appear almost in a circle. The mycelium of mushrooms ABSORBS NUTRIENTS from the ground. When nutrients at the centre get exhausted they grow in diameter and form a circle. The ring grows in diameter EVERY year which are actually fruiting bodies of the fungus. This is called .Fairy Ring. especially in Europe.

Discussion

9361.	Question : There is a myth that immediately after heavy rains in forest, mushrooms appear in large number and make a very large ring or circle, which may be several metres in diameter. These are called as 'fairly ring'. Can you explain this myth of fairy rings in biological terms ? Discuss the mycilial structure in Agaricus and its soil borne nature.
Answer» Solution :The fruiting bodies in Agaricus known as basidiocarps form a CONCENTRIC ring like structure from the mycelium present in the soil. The basidiocarps resemble button in shape and develop to form a ring like structure The fairy ring structure in Agaricus have reported stimulation of plants productivity. This RINGS are infact fruiting bodies of this fungus and the diameter of this fairy ring increases every YEAR due to SPREAD of mecelium.

Discussion

9362.	Question : There is a myth that immediately after heavy rains in forest mushrooms appear in large number and make a very large ring or circle, which may be several metres in diameter. These are called as 'fairy rings' Can you explain this myth of fairy rings in biological terms.
Answer» SOLUTION :CIRCLES appear due to underground mycelium of mushroom which appear centrifugally. From this mycelium fruiting bodies (basidiocarps) appear in rings. Gradually this mycelium widens and central mycelium perishes. Due to this diameter of the ring also increases EVERY YEAR.

Discussion

9363.	Question : There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart.
Answer» Solution :(a) Two CHAMBERED heart : It is present in animals like fishes. Only one atria and one VENTRICLE is present which are not separated and hence MIXING of oxygenated and deoxygenated blood occur. (b) Three chambered heart : It develops after the division of auricle into right and LEFT halves as in amphibian. Mixing of oxygenated and deoxygenated blood occurs in ventricles. (c) An intermidiary heart : It is present in reptiles in which ventricle get partially divided through a SEPTUM which is incomplete e.g. crocodiles, thus having four chambered heart. (d) In four chambered heart: Both the auricle and ventricle are divided into two halves and thus no mixing of oxygenated and deoxygenated blood occurs e.g. birds and mammals.

Discussion

9364.	Question : There are various types of reproduction. The type of reproduction adopted by an organisms depends on
Answer» The HABITAT and MORPHOLOGY of the ORGANISM Morphology of the organism Morphology and PHYSIOLOGY of the organism The organism's habitat, physiology and GENETIC makeup Answer :D

Discussion

9365.	Question : There are two types of synapses ......... and .......
Answer» SOLUTION :CHEMICAL, ELECTRICAL

Discussion

9366.	Question : There are the animals that capture insets by echolocation. Which group do they belong to?
Answer» Solution :BATS, Class MAMMALIA. ORDER CHIROPTERA.

Discussion

9367.	Question : There are several exceptions to the cell theory, .......... is one of them.
Answer» SOLUTION :VIRUSES

Discussion

9368.	Question : There are no tRNAs for stop codons. Give reason.
Answer» Solution :The stop CODONS serve to indicate the termination of protein synthesis. THEREFORE when any one of the stop codons (UAA, UAG, UGA) appear on the mRNA. It will SIGNAL the ACTION of GTP-dependent release FACTOR which cleaves the polypeptide chain from the terminal tRNA. The tRNA will further be released from ribosomes.

Discussion

9369.	Question : There are no tRNA, for"_________" codons.
Answer» AUG GUC UAA AGA Answer :C

Discussion

9370.	Question : There are many endocrine glands in human body. Name the glands which is absent in male and the one absent in female.
Answer» Solution :In male ovary is absent. In FEMALE testis are absent. In male pair of testis are present in scrotal sac.Which functions as primary SEX organ as well hormone gland. This gland is absent in female. Pair of ovaries are present in abdominal cavity of female. It is gemale REPRODUCTIVE organ as well as hormonal gland producing estrogen and PROGESTERONE. In male, ovaries are absent.

Discussion

9371.	Question : There are ____different amino acids existing naturally.
Answer» about 20 about 10 about 25 about 22 Solution :About 20

Discussion

9372.	Question : There are 34 inflorescences on Bougainvillea plant and 44 inflorescences on Poinsettig plant. Select the number of flowers in Bongainvillea and number of megasporophylls present in Poinsettia plant.
Answer» 34, 44 102, 44 102, 132 34, `oo` ANSWER :C

Discussion

9373.	Question : There are 10 schizocarpic fruits of Acacia, 3 with seven constrictions each, 2 with five constrictions each, 3 with nine constrictions each and the others with six constrictions each. What is the minimum number ofreduction divisions involved in the formation of pollen grains which are required for the formation of seeds in all the ten fruits? (note: one pollen grain for one ovule)
Answer» 20 40 60 8- Answer :A

Discussion

9374.	Question : There are 11 pairs of ribs in man.
Answer» ANSWER :F

Discussion

9375.	Question :There are 11 pairs of ribs in man
Answer» [A]TRUE [B]FALSE Answer :False

Discussion

9376.	Question : true or false, There are 11 pairs of ribs in man
Answer» ANSWER :FALSE

Discussion

9377.	Question : Theory of chemical evolution was proposed by ___
Answer» Lamarck Urey Stanley Wiessmann Answer :C

Discussion

9378.	Question : Theca or lorica is covering found in
Answer» DINOFLAGELLATES Diatoms Euglenoids Heliozoans ANSWER :A

Discussion

9379.	Question : The zygospore is formed in
Answer» RHIZOPUS yeast Penicillium AGARICUS

Discussion

9380.	Question : The zoospore of Ulothrix has:
Answer» ONE FLAGELLUM TWO FLAGELLA three flagella FOUR flagella

Discussion

9381.	Question : The zoological name of National Bird is:
Answer» PAVO Cristatus Zoothera Salimalii Columba LIVIA Chalcophaps indiva Solution :Pavo Cristatus

Discussion

9382.	Question : The youngest layer of secondary phloem in woody dicot stem is located
Answer» Just OUTSIDE to EPIDERMIS Just outside to vascular cambium Just inside to vascular cambium Between periderm and primary cortex Answer :B

Discussion

9383.	Question : The Z line is located
Answer» in M line in H line at the CENTRE of I BAND at the centre of A band

Discussion

9384.	Question : The youngest and the oldest segment in earthworm respectively
Answer» Peristonium and pygidium Pygidium and PERISTOMIUM Preanal segment and peristomium Peristomium and preanal segment ANSWER :C

Discussion

9385.	Question : The yellow or brown spots whichhave sporangia in ferns are called ……….. .
Answer» ANSWER :SORI

Discussion

9386.	Question : The yellowing of leaves, called chlorosis, is usually caused by the deficiency of :
Answer» sodium phosphorus magnesium calcium Answer :C

Discussion

9387.	Question : The yellow colour of urine is due to the presence of
Answer» urea uric ACID UROCHROME bilirubin Answer :C

Discussion

9388.	Question : The yellow colour of the urine is due to the presence of a pigment, ............
Answer» SOLUTION :UROCHROME

Discussion

9389.	Question : The xylem vessels are relatively more in number in
Answer» AUTUMN WOOD LATE wood PRIMARY xylem Spring wood ANSWER :D

Discussion

9390.	Question : The xylem that is formed from procambium and has lignified cell walls is known as
Answer» PRIMARY xylem secondary phloem protoxylem metaxylem Answer :D

Discussion

9391.	Question : The word 'Tissue' is coined by
Answer» AUGUST MAYER Bichat Marcello malphigi MECKEL Answer :B

Discussion

9392.	Question : The word systematics is derived from (A) Greek word (B) Latin word (C) English word (D) Indian word
Answer» GREEK WORD Latin word English word Indian word ANSWER :B

Discussion

9393.	Question : The wolfian duct arises from margin of kidney
Answer» POSTERIOR, OUTER ANTERIOR, outer posterior, INNER anterior, lateral Answer :A

Discussion

9394.	Question : The white matter in bird droppings consists of large amount of _________.
Answer» ANSWER :URIC ACID

Discussion

9395.	Question : The white blood cells move more easily through connective tissues due to the
Answer» ability to produce HYALURONIDASE amoeboid MOVEMENT ability to produce GLYCOSAMINOGLYCANS ability to exhibit diapedesis Answer :A

Discussion

9396.	Question : The wheat grain has an embryo with one large shield shaped cotyledon known as
Answer» scutellum coleoptile epiblast COLEORHIZA ANSWER :A

Discussion

9397.	Question : The wearing away of the bone ends of the knees and other movable joints is called ..............
Answer» SOLUTION :OSTEOARTHRITIS

Discussion

9398.	Question : The WBC whichis leastin number
Answer» Eosinophil Basophil NEUTROPHIL MONOCYTES . ANSWER :B

Discussion

9399.	Question : The WBC with large, spherical nucleus and scanty peripheral cytoplasm are
Answer» reticulocytes lymphocytes monocytes mast CELLS ANSWER :B

Discussion

9400.	Question : The wavelength of light absorbed by Pr form of phytochrome is(A) 680 nm(B) 720 nm(C) 620nm(D) 640nm
Answer» 680 nm 720 nm 620nm 640nm

Discussion

Explore topic-wise InterviewSolutions in .

Question : Thermoregulatory glands present in the skin of mammals are

Question : Thermoregulatory centre of human body is associate with

Question : Thermorecepters of cockroach occur on

Question : There is no natural death in single celled organisms like Amoeba and bacteria because

Question : There is no DNA in

Question : There is no DNA in :

Question : There is no DNAin ........... .

Question : There is no connection between sequential neurons, but nerve impulse is conducted through it.

Question : There is much variation in the shape of chlorohoplast among the algae of

Question : There is a myth that immediately after heavy rains in forest mushrooms appear in large number and make a very large ring or circle, which may be several metres in diameter. These are called as 'fairy rings' Can you explain this myth of fairy rings in biological terms.

Question : There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four chambered heart.

Question : There are various types of reproduction. The type of reproduction adopted by an organisms depends on

Question : There are two types of synapses ......... and .......

Question : There are the animals that capture insets by echolocation. Which group do they belong to?

Question : There are several exceptions to the cell theory, .......... is one of them.

Question : There are no tRNAs for stop codons. Give reason.

Question : There are no tRNA, for"_________" codons.

Question : There are many endocrine glands in human body. Name the glands which is absent in male and the one absent in female.

Question : There are ____different amino acids existing naturally.

Question : There are 34 inflorescences on Bougainvillea plant and 44 inflorescences on Poinsettig plant. Select the number of flowers in Bongainvillea and number of megasporophylls present in Poinsettia plant.

Question : There are 11 pairs of ribs in man.

Question :There are 11 pairs of ribs in man

Question : true or false, There are 11 pairs of ribs in man

Question : Theory of chemical evolution was proposed by ___

Question : Theca or lorica is covering found in

Question : The zygospore is formed in

Question : The zoospore of Ulothrix has:

Question : The zoological name of National Bird is:

Question : The youngest layer of secondary phloem in woody dicot stem is located

Question : The Z line is located

Question : The youngest and the oldest segment in earthworm respectively

Question : The yellow or brown spots whichhave sporangia in ferns are called ……….. .

Question : The yellowing of leaves, called chlorosis, is usually caused by the deficiency of :

Question : The yellow colour of urine is due to the presence of

Question : The yellow colour of the urine is due to the presence of a pigment, ............

Question : The xylem vessels are relatively more in number in

Question : The xylem that is formed from procambium and has lignified cell walls is known as

Question : The word 'Tissue' is coined by

Question : The word systematics is derived from (A) Greek word (B) Latin word (C) English word (D) Indian word

Question : The wolfian duct arises from margin of kidney

Question : The white matter in bird droppings consists of large amount of _________.

Question : The white blood cells move more easily through connective tissues due to the

Question : The wheat grain has an embryo with one large shield shaped cotyledon known as

Question : The wearing away of the bone ends of the knees and other movable joints is called ..............

Question : The WBC whichis leastin number

Question : The WBC with large, spherical nucleus and scanty peripheral cytoplasm are

Question : The wavelength of light absorbed by Pr form of phytochrome is(A) 680 nm(B) 720 nm(C) 620nm(D) 640nm