22339 + Interview Questions in Biology in Class 11 Page 140 InterviewSolution

6951.	Question : Which character among the angiosperms is most important taxonomically to differentiate it from the gymnosperms?
Answer» TRIPLOID endosperm Attractive petals Presence of VESSELS in xylem SEEDS ENCLOSED in FRUIT Solution :Seeds enclosed in fruit

Discussion

6952.	Question : Which cellular structures form the cytoskeleton?
Answer» SOLUTION :MICROTUBULES, MICROFILAMENTS and INTERMEDIATE FILAMENTS.

Discussion

6953.	Question : Which centre controls the switch off point of inspiration?
Answer» ANSWER :Pneumotoxic CENTER

Discussion

6954.	Question : Which cells of the retina enable us to see coloured objects around us ?
Answer» Solution :Cone cells of RETINA helps us to PERCEIVE colours, three types of cone cells are present which contain specific pigments. They mainly RESPOND to RED, Green and Blue COLOUR.

Discussion

6955.	Question : Which cells of pancreas produce insulin ?
Answer» `BETA` CELLS `ALPHA` cells Leydig cells interstitial cells

Discussion

6956.	Question : Which cells of Crypts of Lieberkuhn secrete antibacterial lysozyme ?
Answer» Paneth cells Zymogen cells Kupffer cells Argentaffin cells Answer :A

Discussion

6957.	Question : Which cells of crypts of Leiberkuhn'secrete antibacterial lysozyme ?
Answer» Paneth CELLS ZYMASE cells KUPFFER cells ARGENTAFFIN cells SOLUTION :N/A

Discussion

6958.	Question : Which cells lack intracellular biomembranes ?
Answer» SOLUTION :PROKARYOTIC CELLS.

Discussion

6959.	Question : Which cells have well developed SER and which contain abundant RER ?
Answer» SOLUTION :MUSCLE CELLS, protein-syntheiissng cells, e.g., LIVER and PANCREATIC cells.

Discussion

6960.	Question : Which cells have cell wall around them.
Answer» SOLUTION :PROKARYOTIC and PLANT

Discussion

6961.	Question : Which cells form blood platelets in the body?
Answer» SOLUTION :MEGAKARYOCYTES in RED BONE MARROW.

Discussion

6962.	Question : Which cells fill up the spaces and form ground tissue in roots, stem and leaves of plant?
Answer» SOLUTION :PARENCHYMA.

Discussion

6963.	Question : Which cell wall layer of plant cell is laid during maturation? Mention its role.
Answer» Solution :SECONDARY wall is laid during MATURATION. It plays a KEY role in DETERMINING the SHAPE of a cell.

Discussion

6964.	Question : Which cell type has the thinnest walls?
Answer» SOLUTION :PARENCHYMA

Discussion

6965.	Question : Which cell organelles are referred as "power house " ?
Answer» GOLGI BODIES ENDOPLASMIC RETICULUM NUCLEUS Mitochondria Answer :D

Discussion

6966.	Question : Which cell organelles secretes zymogen granules
Answer» LYSOSOMES GOLGIBODY SMOOTH E.R. Sphaerosomes Answer :B

Discussion

6967.	Question : Which cell organelle is present in both prokaryotic and eukaryotic cell?
Answer» ribosome mitochondria endoplasmic reticulum nucleus Answer :A

Discussion

6968.	Question :Which cell organelle is not correctly associated with anappropriate enzyme or protein?
Answer» Mitochondria-cytochrome c Rough ENDOPLASMIC reticulum-ribosomes Peroxisomes-catalase NUCLEAR membrane-amino ACID PERMEASE SOLUTION :Nuclear membrane-amino acid permease

Discussion

6969.	Question : Which book of Esau is refierred as Webster.s of plant biology
Answer» PLANT anatomy Anatomy of seed PLANTS Anatomy of vascular plants Anatomy of flowering plants Answer :B

Discussion

6970.	Question : Which bones make the shoulder girdle?
Answer» SOLUTION :CLAVICLE and SCAPULA.

Discussion

6971.	Question : Which blood vessels have the valves? What are they called as?
Answer» SOLUTION :VEINS. SEMILUNAR VALVES.

Discussion

6972.	Question : Which blood vessel takes blood away from kidney?
Answer» RENAL PORTAL vein Renal vein Afferent ARTERIOLE Efferent arteriole SOLUTION : Renal vein

Discussion

6973.	Question : Which blood vessel carries least amount of urea?
Answer» PULMONARY vein RENAL ARTERY renal vein hepatic PORTAL vein Solution :renal vein

Discussion

6974.	Question : Which biologist introduced the term species?
Answer» SOLUTION :JOHN RAY.

Discussion

6975.	Question : Which bee develops from unfertilized eggs?
Answer» Solution :1. The drone is the functional male bee of the colony which develops from an UNFERTILIZED egg. 2. It depends on WORKER bee for HONEY. 3. The sole duty of a worker bee is to fertilize the Queen bee.

Discussion

6976.	Question : Which bacterium is used in bioremidiation process?
Answer» RHIZOBIUM sp. Pseudomonas putida Bacillus licheniformis Streptococcus Answer :B

Discussion

6977.	Question : Which bacterium is NOT involved in Denitrification ?
Answer» PSEUDOMONAS THIOBACILLUS BACILLUS subtilis NITROBACTER ANSWER :D

Discussion

6978.	Question :Which bacteria shows pleomorphism?
Answer» CLOSTRIDIUM Acetobacter Salmonella All of these ANSWER :B

Discussion

6979.	Question : Which bacteria are the most abundant in nature ? (A) Heterotrophic (B) Halophiles (C) Methanogens (D) None of these
Answer» Heterotropic HALOPHILES METHANOGENS NONE of these ANSWER :A

Discussion

6980.	Question : Which Ascomycetes has been used extensively in biochemical and geneticwork ?
Answer» SOLUTION :NEUROSPORA

Discussion

6981.	Question : Which are true about numerical taxonomy ? (a) Equal importance given to each character (b) Based on all observable charcacters (c) Easily carried out using computers (d) At the same time only few character can be considered.
Answer» a, B and d b, c and d a, c and d a, b and c Solution :At the same TIME hundreds of characters can be considered.

Discussion

6982.	Question : Which area/band in a muscle has oth actin and myosin filaments.
Answer» SOLUTION :A BANDS.

Discussion

6983.	Question : Which are the two macronutrients that usually play the most important role in limiting plant growth globally?
Answer» SOLUTION :NITROGEN, MAGNESIUM.

Discussion

6984.	Question : Which are the two factors which affect the rate of diffusion of a gas?
Answer» SOLUTION :Temperature, CONCENTRATION GRADIENT, VISCOCITY of media, SIZE of molecules.

Discussion

6985.	Question : Which are the sole members of kingdom Monera ?
Answer» ALGAE BACTERIA fungus DIATOMS ANSWER :B

Discussion

6986.	Question : Which are the sensory organs for smell and taste ? Give brief information.
Answer» SOLUTION :The sensory organs DETECT all types of CHANGES in the environment and send appropriate signals to the CNS, where all the inputs are processed and analysed. Signals are then sent to different parts/ centres of the brain. This is how you can sense changes in the environment. We can smell through nose and detect the taste through tongue. Nose, is having, mucous, covered sensory Receptor which receives stimuli of smell, It is called smell receptor. They are made up of olfactory epithelium. It has three types of cells. (a) Bipolar olfactory nerve cells (b) Columnar epithelial cells (c) Mucous gland. Olfactory receptor are linked with olfactory bulb which is extension of limbic system. Olfactory bulb is situated at the anterior lobe of cerebral hemisphere, BENEATH ethmoid bone. Nose and Tongue both recognise soluble chemicals. In gustation (task) and smell, chemical sensations are functionally similar and interrelated. Tongue, identifies tastes by Taste BUD which possess Taste Receptor. Each food or drink.s taste is connected with various inputs in brain which gives sensation of complex tastes.

Discussion

6987.	Question : Which are the sensory cells in the ear?
Answer» OSSICLES ENDOLYMPH cochlea ORGANS of CORTI Solution :cochlea

Discussion

6988.	Question : Which are the neurons found mostly in the central nervoussystem?
Answer» SOLUTION :MULTIPOLAR

Discussion

6989.	Question : Which are the phagocytic cells from given diagram?
Answer» I and V I and III II and IV I and II Answer :A

Discussion

6990.	Question : What are the drawbacks of Linnaeus classification?
Answer» SOLUTION :Linnaeus CLASSIFICATION faced major setback because prokaryotes and eukaryotes were grouped together. Similarly fungi, heterotrophic ORGANISMS were placed along with the photosynthetic PLANTS.

Discussion

6991.	Question : Chrysophytes which are the chief producers in the ocean?
Answer» EUGLENA Diatoms Gonyaulax MYCOPLASMA ANSWER :B

Discussion

6992.	Question : Which are supposed to be the 'ancient bacteria'?
Answer» SOLUTION :ARCHAEBACTERIA.

Discussion

6993.	Question : Which are sensory organs of earthworm ? Give their function
Answer» Solution :Sensory system does not have EYES but does possess light and touch sensitive organs (RECEPTOR cells) to distinguish the light intensities and to FEEL the vibrations in the ground.Earthworms have SPECIALISED CHEMORECEPTORS which react to chemical stimuli. These sense organs are located on the anterior part of the earthworm.

Discussion

6994.	Question : Whichare intermediate processes occurringin Glycolysis andKrebs cycle ?
Answer» SOLUTION :PYRUVATE which is formed by theglycolytic catabolismof carbohydrates in the cytosol. Afterit enters mitochondrialmatrixundergoes oxidative decarboxylation by a complexset of reactions catalysed by pyruvicdehydrogenase. Pyruvicdehydrogenase functions with other Coenzyme. Like `NAD^(+)` and Coenzyme (CoA). Pyruvic acid `+ CoA + NAD^(+) (Mg^(+2))/("Pyruvate dehdrogenase ") "Acetyl " CoA + CO_(2) + NADH + H^(+)` Duringthis process, two NUCLEI of NADH are produced from the metabolism of two molecules of pyruvic acid (produced from one GLUCOSE molecule during glycolysis). The acetyl CoA then enters a cyclicpathway, tricarboxylic acid CYCLE, more commonly called as Krebs. cycle afterthe scientistHans Krebs who first elucidated it.

Discussion

6995.	Question : Which are 'in' the calvin cycle ?
Answer» 18 ADP 12 NADP SIX `O_(2)` Six `Co_(2)` ANSWER :D

Discussion

6996.	Question : Which are hollow, microtubules or microfilaments ?
Answer» SOLUTION :MICROTUBULES.

Discussion

6997.	Question : Which are generally analytical in nature in taxonomy? (A) Museums (B) Key (C) Botanical gardens (D) Zoological parks
Answer» Museums Key Botanical gardens Zoological PARKS ANSWER :B

Discussion

6998.	Question : Which animalcule is immortal ?
Answer» PARAMECIUM PLASMODIUM Euglena Bacteria ANSWER :D

Discussion

6999.	Question : Which animal shows pneumatophore: Hydra, sponges, Physalia or corals?
Answer» SOLUTION :PHYSALIA.

Discussion

7000.	Question : Which animal shows locomotion by setae?
Answer» ROUNDWORM earthworm leech tapeworm

Discussion

Explore topic-wise InterviewSolutions in .

Question : Which character among the angiosperms is most important taxonomically to differentiate it from the gymnosperms?

Question : Which cellular structures form the cytoskeleton?

Question : Which centre controls the switch off point of inspiration?

Question : Which cells of the retina enable us to see coloured objects around us ?

Question : Which cells of pancreas produce insulin ?

Question : Which cells of Crypts of Lieberkuhn secrete antibacterial lysozyme ?

Question : Which cells of crypts of Leiberkuhn'secrete antibacterial lysozyme ?

Question : Which cells lack intracellular biomembranes ?

Question : Which cells have well developed SER and which contain abundant RER ?

Question : Which cells have cell wall around them.

Question : Which cells form blood platelets in the body?

Question : Which cells fill up the spaces and form ground tissue in roots, stem and leaves of plant?

Question : Which cell wall layer of plant cell is laid during maturation? Mention its role.

Question : Which cell type has the thinnest walls?

Question : Which cell organelles are referred as "power house " ?

Question : Which cell organelles secretes zymogen granules

Question : Which cell organelle is present in both prokaryotic and eukaryotic cell?

Question :Which cell organelle is not correctly associated with anappropriate enzyme or protein?

Question : Which book of Esau is refierred as Webster.s of plant biology

Question : Which bones make the shoulder girdle?

Question : Which blood vessels have the valves? What are they called as?

Question : Which blood vessel takes blood away from kidney?

Question : Which blood vessel carries least amount of urea?

Question : Which biologist introduced the term species?

Question : Which bee develops from unfertilized eggs?

Question : Which bacterium is used in bioremidiation process?

Question : Which bacterium is NOT involved in Denitrification ?

Question :Which bacteria shows pleomorphism?

Question : Which bacteria are the most abundant in nature ? (A) Heterotrophic (B) Halophiles (C) Methanogens (D) None of these

Question : Which Ascomycetes has been used extensively in biochemical and geneticwork ?

Question : Which are true about numerical taxonomy ? (a) Equal importance given to each character (b) Based on all observable charcacters (c) Easily carried out using computers (d) At the same time only few character can be considered.

Question : Which area/band in a muscle has oth actin and myosin filaments.

Question : Which are the two macronutrients that usually play the most important role in limiting plant growth globally?

Question : Which are the two factors which affect the rate of diffusion of a gas?

Question : Which are the sole members of kingdom Monera ?

Question : Which are the sensory organs for smell and taste ? Give brief information.

Question : Which are the sensory cells in the ear?

Question : Which are the neurons found mostly in the central nervoussystem?

Question : Which are the phagocytic cells from given diagram?

Question : What are the drawbacks of Linnaeus classification?

Question : Chrysophytes which are the chief producers in the ocean?

Question : Which are supposed to be the 'ancient bacteria'?

Question : Which are sensory organs of earthworm ? Give their function

Question : Whichare intermediate processes occurringin Glycolysis andKrebs cycle ?

Question : Which are 'in' the calvin cycle ?

Question : Which are hollow, microtubules or microfilaments ?

Question : Which are generally analytical in nature in taxonomy? (A) Museums (B) Key (C) Botanical gardens (D) Zoological parks

Question : Which animalcule is immortal ?

Question : Which animal shows pneumatophore: Hydra, sponges, Physalia or corals?

Question : Which animal shows locomotion by setae?