24277 + Interview Questions in Biology in Class 12 Page 242 InterviewSolution

12051.	Question : Name the connecting link between amphibians and reptiles.
Answer» SOLUTION :Seymouria is the connecting link between AMPHIBIANS and REPTILES.

Discussion

12052.	Question :Name the company which started selling human insulin in 1983.
Answer» SOLUTION :ELI LILLY

Discussion

12053.	Question : Name the component cells of the egg apparatus in an embryo sac
Answer» SOLUTION :The EGG apparatus consists of two SYNERGIDS and one egg cell. The synergids have special cellular thickenings CALLED filliform apparatus.

Discussion

12054.	Question : Name the common ancestor of the great apes and man.
Answer» SOLUTION :DRYOPITHECUS

Discussion

12055.	Question : Name the common function that cotyledons and nucellus perform
Answer» Solution :Cotyledons functions and functions of NUCELLUS (i) To STORE extra reserve food (ii) Cotyledons provide NUTRITION to EMBRYO. WHITE nucellus provide nutrition to embryo sac

Discussion

12056.	Question : Name the chronic respiratory disorder caused mainly by cigarette smoking.
Answer» RESPIRATORY acidosis Respiratory alkalosis EMPHYSEMA Asthma SOLUTION :Emphysema

Discussion

12057.	Question : Name the city in our country where the entire public road transport runs on CNG.
Answer» SOLUTION :In Delhi ENTIRE public road TRANSPORT RUNS on CNG.

Discussion

12058.	Question : Name the chromosome disorder which causes due to Robertsonian Translocation .
Answer» ANSWER :Down's SYNDROME

Discussion

12059.	Question : name the chinese Dwarf Rice variety.
Answer» SOLUTION :Dee-geo-woo-gen.

Discussion

12060.	Question : Name the chemicals used in gene transfer.
Answer» SOLUTION :Polyethylene GLYCOL (PEG) and DEXTRAN Sulphate.

Discussion

12061.	Question : Identify the chemical which can induce Polyploidy _____
Answer» Auxin Gibberellin Ethylene COLCHICINE Solution :Colchicine

Discussion

12062.	Question : Name the chemical substance which is called by the name (a) Kornberg Enzyme(b) Ochoa's enzyme
Answer» SOLUTION :DNA polymerase I is ALSO known as Kormberg ENZYME. Polynucleotide PHOSPHORYLASE is also known as Ochoa.s enzyme.

Discussion

12063.	Question :Name the chemical present in smack and give the scientific name of the plant from which it is obtained.
Answer» SOLUTION :DIACETYLMORPHINE, PAPAVER somniferum

Discussion

12064.	Question : Name the chemical compound responsible for the depletion of ozone layer.
Answer» SOLUTION :CHLOROFLUOROCARBONS.

Discussion

12065.	Question : Name the cells which have the capacity to divide & self-perpetuate.
Answer» ANSWER :MERISTEMATIC CELL

Discussion

12066.	Question : Name the cells which produce thrombocytes.
Answer» SOLUTION :MEGAKARYOCYTES PRODUCE THROMBOCYTES.

Discussion

12067.	Question : Name the cells that secrete androgens.
Answer» SOLUTION :LEYDIG CELLS[INTERSTITIAL cells].

Discussion

12068.	Question : Name the cells that secrete renin.
Answer» ANSWER :JUXTA GLOMERULAR CELLS

Discussion

12069.	Question : Name the cells that release pyrogens. What is the role of these substances in the defence of the body?
Answer» Solution :MACROPHAGES, By raising body temperature, ACTIVATE phagocytes and inhibit GROWTH of bacteria

Discussion

12070.	Question : Name the cells that release antibodies.
Answer» SOLUTION :LYMPHOCYTES

Discussion

12071.	Question : Name the cells responsible for forming insulin.
Answer» `ALPHA`-CELLS `BETA` cells `DELTA` -cells T-cells Solution :`beta` cells

Discussion

12072.	Question : Name the cells in the mucosal epithelium that helps in lubrication
Answer» ANSWER :GOBLET CELLS

Discussion

12073.	Question : Name the cells in tests which synthesize and secrete the anhydrogens.
Answer» SOLUTION :Intestitial CELLS/Leydig cells

Discussion

12074.	Question : Name the cells noticed in the epithelial layer of seminiferous tubule.
Answer» Solution :(a) Sertoli CELLS or NURSE cells (b) Spermatogonic cells or male GERM cells.

Discussion

12075.	Question : Name the cell which divides to form male nuclei.
Answer» SOLUTION :GENERATIVE CELLS of MICROSPORE.

Discussion

12076.	Question : Name the cell that produces lymphokines.
Answer» SOLUTION :HELPER T-cells.

Discussion

12077.	Question : Name the cell that develops into embryo Sac. How many embryo sacs are formed from one megaspore mother cell ?
Answer» SOLUTION :FUNCTIONAL megaspore, one megaspore DEVELOPS to form one embryo SAC.

Discussion

12078.	Question : Name the cell organelle that forms the structure X and Y of the given human spermatozoa.
Answer» Solution :X is formed by GOLGI BODIES Y is MADE of MITOCHONDRION

Discussion

12079.	Question : Name the cell organelle in which Krebs' cycle occurs.
Answer» Solution :The cell ORGANELLE in which KREBS CYCLE OCCURS is mitochondrion.

Discussion

12080.	Question : Name the cell from which the endosperm of coconut develops. Give the characteristic features of endosperm of coconut
Answer» Solution :The endosperm of coconut develops from the primary endosperm cell. Characteristic FEATURES of endosperm of coconut are: The water of coconut is free-nuclear endosperm made up of thousands of free NUCLEI. The surrounding WHITE kernel of coconut is the CELLULAR endosperm

Discussion

12081.	Question : Name the cavity in which kidneys remain attached.
Answer» ANSWER :Retro-Peritoneal CAVITY

Discussion

12082.	Question : Name the causative organism,transmission viruses.These viruses infect the nasal and respiratory pasage,but not the lungs.
Answer» SOLUTION :Itys SYMPTOMS include: (i)Nasal congestion and discharge , (ii)Sore throat. (iii)Cough . (iv)Headache. (V)Tiredness and (vi)Hoarseness last for 3-7 days. It transmits by, (i)Droplets released during cough and sneezing by an infected PERSON and (ii)CONTAMINATED objects/articles.

Discussion

12083.	Question : Name the causative organism of (a) Syphilis (b) Genital warts
Answer» SOLUTION :(a) Syphilis is caused by Treponema PALLADIUM (B) GENITAL warts caused by Human PAPILLOMA virus.

Discussion

12084.	Question : Name the causative organisms of typhoid fever. Mention the symptoms and the test which is used for detecting typhoid fever.
Answer» Solution :Salmonella typhi. High FEVER, WEAKNESS, STOMACH pain, constipation, headache, loss of appetite. Widal TEST

Discussion

12085.	Question : Name the causative agent and vector of lymphatic filariasis.
Answer» SOLUTION :WUCHERERIA bancrofti and Wuchereria malayi.

Discussion

12086.	Question : Name the causative agent of Elephantiasis.
Answer» SOLUTION :`UL("WUCHERERIA bancrofti")` or `ul("Wuchereria malayi")`.

Discussion

12087.	Question :Name the category of organisms that occupy the first tropic level (T_1) and fourth tropic level (T_4) in an ecosystem.
Answer» Solution :PRODUCERS (AUTOTROPHS) OCCUPY the first tropic level `(T_1)` whereas the fourth tropic level `(T_4)` is occupied by Tertiary CONSUMERS (Secondary carnivore).

Discussion

12088.	Question : Name the breeds of cow that are used for dairy in India.
Answer» Solution :(1) Indian breeds : Sahiwal, SINDHI, GIR, ETC. (2) Exotic breeds : Jersy, Brown SWISS, Holstein.

Discussion

12089.	Question : Name the branch of ecology which deals with study of a single species.
Answer» ANSWER :AUTECOLOGY

Discussion

12090.	Question : Name the branch of biology dealing with all aspect of domesticated animals.
Answer» ANSWER :ANIMALE HUSBANDRY

Discussion

12091.	Question : Name the body cavity in which lungs are present.
Answer» ANSWER :THORACIC

Discussion

12092.	Question :Name the blank spaces a, b, c, d, e, f and g given in the following table:
Answer» Solution :(a) LACTOBACILLUS (b) TRICHODERMA polysporum (c) Yeast (Fungus) (d) Penicillin (e) Streptococcus (F) Fungus (G) CLOSTRIDIUM butyricum

Discussion

12093.	Question :Name the blank spaces a, b, c and d
Answer» SOLUTION :(a) Trichoderma polysporum (B) Immunosuppression (c) YEAST (Fungus) (d) LOWERING of blood cholesterol

Discussion

12094.	Question : Name the blank spaces a, b, c and d from the table given below :
Answer» Solution :`a = TRICHODERMA Polysporum. B = immunno-suppressive agent C = YEAST (fungus ) d = blood-cholestrol LOWERING agent

Discussion

12095.	Question : Name the blank spaces a, b, c and d from the table given below :
Answer» Solution :a = LACTOBACILLUS b = Trichoderma Polysporum C = Fungus (YEAST) d = Penicillin

Discussion

12096.	Question : Name the biological product that obtained from transgenic cow Rosie
Answer» ANSWER :HUMAN ALPHA LACTALBUMIN

Discussion

12097.	Question : Name the biocontrol agents used to get rid of Aphids & mosquito larvae .
Answer» SOLUTION :Lady bird BEETLE & DRAGON FLIES.

Discussion

12098.	Question : Name the bioactive principle and its medicinal value which is obtained from the plant - Papaver somniferum.
Answer» Solution :Bioactive PRINCIPLE : MORPHINE Medicinal value : It is used as STRONG analgesic in SURGERIES.

Discussion

12099.	Question : Name the biggest source of pollution a big cities.
Answer» ANSWER :A::B

Discussion

12100.	Question : Name the better yielding semidwarf varieties of wheat developed in India
Answer» SOLUTION :JAYA and RATNA

Discussion

Explore topic-wise InterviewSolutions in .

Question : Name the connecting link between amphibians and reptiles.

Question :Name the company which started selling human insulin in 1983.

Question : Name the component cells of the egg apparatus in an embryo sac

Question : Name the common ancestor of the great apes and man.

Question : Name the common function that cotyledons and nucellus perform

Question : Name the chronic respiratory disorder caused mainly by cigarette smoking.

Question : Name the city in our country where the entire public road transport runs on CNG.

Question : Name the chromosome disorder which causes due to Robertsonian Translocation .

Question : name the chinese Dwarf Rice variety.

Question : Name the chemicals used in gene transfer.

Question : Identify the chemical which can induce Polyploidy _____

Question : Name the chemical substance which is called by the name (a) Kornberg Enzyme(b) Ochoa's enzyme

Question :Name the chemical present in smack and give the scientific name of the plant from which it is obtained.

Question : Name the chemical compound responsible for the depletion of ozone layer.

Question : Name the cells which have the capacity to divide & self-perpetuate.

Question : Name the cells which produce thrombocytes.

Question : Name the cells that secrete androgens.

Question : Name the cells that secrete renin.

Question : Name the cells that release pyrogens. What is the role of these substances in the defence of the body?

Question : Name the cells that release antibodies.

Question : Name the cells responsible for forming insulin.

Question : Name the cells in the mucosal epithelium that helps in lubrication

Question : Name the cells in tests which synthesize and secrete the anhydrogens.

Question : Name the cells noticed in the epithelial layer of seminiferous tubule.

Question : Name the cell which divides to form male nuclei.

Question : Name the cell that produces lymphokines.

Question : Name the cell that develops into embryo Sac. How many embryo sacs are formed from one megaspore mother cell ?

Question : Name the cell organelle that forms the structure X and Y of the given human spermatozoa.

Question : Name the cell organelle in which Krebs' cycle occurs.

Question : Name the cell from which the endosperm of coconut develops. Give the characteristic features of endosperm of coconut

Question : Name the cavity in which kidneys remain attached.

Question : Name the causative organism,transmission viruses.These viruses infect the nasal and respiratory pasage,but not the lungs.

Question : Name the causative organism of (a) Syphilis (b) Genital warts

Question : Name the causative organisms of typhoid fever. Mention the symptoms and the test which is used for detecting typhoid fever.

Question : Name the causative agent and vector of lymphatic filariasis.

Question : Name the causative agent of Elephantiasis.

Question :Name the category of organisms that occupy the first tropic level (T_1) and fourth tropic level (T_4) in an ecosystem.

Question : Name the breeds of cow that are used for dairy in India.

Question : Name the branch of ecology which deals with study of a single species.

Question : Name the branch of biology dealing with all aspect of domesticated animals.

Question : Name the body cavity in which lungs are present.

Question :Name the blank spaces a, b, c, d, e, f and g given in the following table:

Question :Name the blank spaces a, b, c and d

Question : Name the blank spaces a, b, c and d from the table given below :

Question : Name the blank spaces a, b, c and d from the table given below :

Question : Name the biological product that obtained from transgenic cow Rosie

Question : Name the biocontrol agents used to get rid of Aphids & mosquito larvae .

Question : Name the bioactive principle and its medicinal value which is obtained from the plant - Papaver somniferum.

Question : Name the biggest source of pollution a big cities.

Question : Name the better yielding semidwarf varieties of wheat developed in India