22339 + Interview Questions in Biology in Class 11

1.	Question : Properties of cell organelles are not always found in the molecular constituents of cell organelles. Justify.
Answer» Solution :No matter what is the function of a particular cell ORGANELLE all the cell organelles are MADE up of more or LESS similar MOLECULES. All the molecules come together in a particular fashion to build up a particular cell organelle. It is similar to the same brick making a small house or bag mansion of a factory. The constituents remain the same but the function and purpose of the finished product CHANGES. The organisation in a living body produces a new functional entity, which has its own properties not found in its components. Hence, a cell organelle is the one having its own properties not found in its molecular constituents.

Discussion

2.	Question : Proper plant growth occurs at a temperature between ..............
Answer» ``25^@C " to " 28^@C` `28^@C " to " 45^@C ` `25^@C " to "35^@C` `28^@C " to " 30^@C ` Solution :`28^@C " to " 30^@C `

Discussion

3.	Question :Prop roots of banyan tree are meant for
Answer» RESPIRATION or GASEOUS EXCHANGE ABSORPTION of water from soil Retention of water in soil Providing support to large branches of banyan tree Answer :D

Discussion

4.	Question : Prolonged angina leads to death of the heart muscle resulting in................
Answer» SOLUTION :HEART FAILURE.

Discussion

5.	Question : Prokaryotic cells do not have
Answer» NUCLEOLUS CENTRIOLES Membrane-bound organelles All of these Answer :D

Discussion

6.	Question : Prokaryotic cells differ from eukaryotic cells in the :
Answer» presence of cell membrane ABSENCE of HISTONES presence of CHROMOSOMES absence of cell wall Solution :absence of histones

Discussion

7.	Question : Prokaryotic cells are about half the size of eukaryotic cells.
Answer» ANSWER :FALSE

Discussion

8.	Question : Prokaryotic cells are characterised by :
Answer» a DISTINCT NUCLEAR membrane distinct chromosomes ABSENCE of chromatin MATERIAL absence of nuclear membrane Solution :absence of nuclear membrane

Discussion

9.	Question : Prokaryotic cell does not have
Answer» Nucleolus Membrane BOUND organelles Centrioles All of these Answer :D

Discussion

10.	Question : Projecting ridge in saccule and utricle
Answer» Hair CELLS Maculla VESTIBULAR APPARATUS Tactorial MEMBRANE ANSWER :D

Discussion

11.	Question : Prokaryotic cell differs with eukaryotic cell in not having
Answer» NUCLEAR MEMBRANE MITOCHONDRIA Plastids All ANSWER :D

Discussion

12.	Question : Prokaryotic cell and Eukaryotic cell
Answer» SOLUTION :

Discussion

13.	Question : Prokaryotic cell:
Answer» Solution :A CELL that lacks a MEMBRANE bound NUCLEUS is called PROKARYOTIC cell.

Discussion

14.	Question : Proenzymes are active/inactive enzyme precursors.
Answer» SOLUTION :INACTIVE

Discussion

15.	Question : products of proteinscatabolism are
Answer» `NH_(3) ,CO_(2) and ` uera Urea ,`CO_(2) and NH` Urea `,NH_(3)and ` uricacid Urea ,`NH_(3)` ALANINE andcreatine Answer :A

Discussion

16.	Question : Productivity is the rate of production of biomass expressed in terms ofi) ("kcal" m^3)yr^(-1)ii) g^(-2) yr^(-1) iii) g^(-1) yr^(-1) iv) ("kcal " m^(-2))yr^(-1)
Answer» ii iii ii and iv i and iii Answer :C

Discussion

17.	Question : Production of silk from the silkworm by rearing practices on a commercial scale is called ......
Answer» SOLUTION : SERICULTURE

Discussion

18.	Question : Production of parthenocarpic fruits is of no use in
Answer» litchi pomegranate rose jasmine Answer :B

Discussion

19.	Question : Product of sexual reproduction generally generates
Answer» New genetic combination LEADING to variation Large biomass Longer VIABILITY of SEEDS Prolonged dormancy Answer :A

Discussion

20.	Question : Product of photosynthesis is transported from the leaves to various parts of the plants and stored in some cell before being utilised. What are the cells/tissues that store them ?
Answer» Solution :FOOD is stored in ROOTS, stem or in specific type of parenchymatous. Cells LOCATED in its CONVERSIONS, polysaccharide that is called STARCH occurs in that form.

Discussion

21.	Question : Product of photorespiration is
Answer» Phosphoglyceratc Erythrose 4-phosphate Dilhydroxy ACETONE 3-phosphate All of the above Solution :PRODUCT of PHOTORESPIRATION is PHOSPHOGLYCERATE.

Discussion

22.	Question : ……….produce sound in human beings.
Answer» SOLUTION :Larynx/vocal CORDS

Discussion

23.	Question :Prochromosome is the name of
Answer» Chromatin Bacterial NUCLEOID Plasmid Uncondensed chromosome ANSWER :B

Discussion

24.	Question : Process of water soluble nutrients go down into the soil horizon and get precipitated as unavailable salts is called
Answer» Fragmentation Leaching Catabolism Humification Answer :B

Discussion

25.	Question : The process of water exudation through hydathodes is called
Answer» Guttation Transpiration Excretion Hydrolysis Answer :A

Discussion

26.	Question : Process of fumigation works on the principle of ________ .
Answer» IMBIBITION DIFFUSION Active TRANSPORT Passive transport ANSWER :D

Discussion

27.	Question : Problem of Erythroblastosis foetalis due to Rhincompatibility begins from first pregnancy/second pregnancy.
Answer» SOLUTION :SECOND PREGNANCY

Discussion

28.	Question : Pristis : Saw fish :: Trygon : .........
Answer» SOLUTION :STING RAY

Discussion

29.	Question : Principal fat-digesting enzyme is in the pancreatic juices.
Answer» ANSWER :1

Discussion

30.	Question : Principle behind the desalination of sea water is __________.
Answer» Endosmosis Diffusion Reverse osmosis Deplasmolysis Answer :C

Discussion

31.	Question : Primitive type of DNA transfer occurs during sexual reproduction in
Answer» Bacteria Fungi SLIME moulds Cyanobacteria ANSWER :A

Discussion

32.	Question : Primitive nervous system is formed in …………………. .
Answer» SPONGE CNIDARIA (COELENTERATE) echinodermata annelida SOLUTION :cnidaria (coelenterate)

Discussion

33.	Question : Primary xylem is developed from
Answer» CAMBIUM Interfascicular cambium Procambium Cork cambium Answer :B

Discussion

34.	Question : Primary succession refers to development of communities on a
Answer» AREA destroyed DUE to FOREST fire newly formed RIVER delta harvested crop field all of these Answer :B

Discussion

35.	Question : Primary root persists in monocotyledonous plants.
Answer» ANSWER :FALSE

Discussion

36.	Question : Primary root is : 1. Positively geotropic 2. Positively hydrotropic 3. Negatively geotropic 4. Negatively hydrotropic Code:
Answer» 1, 2 and 3 are correct 1 and 2 are correct 2 and 4 are correct 1 and 3 are correct Answer :B

Discussion

37.	Question : primary metabolite : amino acids : : secondary metabolite : ……………
Answer» SOLUTION :ALKALOIDS

Discussion

38.	Question : Primary meristems persist throughout the life.
Answer» Solution :Primary MERISTEM is derived directly from MERISTEMS of embryo ( PROMERISTEMS i.e. tip of radicle and plumute )

Discussion

39.	Question : Primary meristems are those which originate
Answer» Since BIRTH from embryonal tissue During SECONDARY MERISTEM By dedifferentiation NONE of the above Answer :A

Discussion

40.	Question : Primary growth is the redponsibility of. . . . . . . . . . Meristem.
Answer» Apical Primary Intercalary Lateral Answer :A

Discussion

41.	Question : Primary growth in a plant is caused due to the activities of : -
Answer» INTERCALARY MERISTEMS lateral meristems apical meristems none of these SOLUTION : intercalary meristems

Discussion

42.	Question : Primary CO_2 acceptor of CAM plant :
Answer» OAA PGA PEP and RUBP CITRIC ACID ANSWER :C

Discussion

43.	Question : Prevention of substances from leaking across the tissue is provided by
Answer» TIGHT JUNCTION Adhering junction GAP junction Elastic junction Answer :A

Discussion

44.	Question : Prevent blood from re-entering the ventricles after entering the aorta.
Answer» SOLUTION : SEMILUNAR VALVES

Discussion

45.	Question : Pressure that occurs in a cell due to osmotic diffusion of water inside is called
Answer» OSMOTIC pressure Turgor pressure Water pressure Diffusion pressure Answer :A

Discussion

46.	Question : Pressure that is equal and opposite toturgor pressure.
Answer» SOLUTION :WALL PRESSURE.

Discussion

47.	Question : Pressure on a plant cell wall caused by osmotic movement of water is called
Answer» OSMOTIC PRESSURE wall pressure turgor pressure TONIC pressure Answer :C

Discussion

48.	Question : Pressure exerted by the cortical cells of the root upon their liquid contents under a fully turgid condition, forcing a quantity of them into the xylem vessels and through them upwards into the stem is known as ………………………..
Answer» SOLUTION :ROOT PRESSURE

Discussion

49.	Question : Pressure exerted by cell wall to balance turgor pressure is called
Answer» WALL PRESSURE DPD water POTENTIAL OSMOTIC pressure Solution :N//A

Discussion

50.	Question :Press a sponge through a coarse cloth bag and extrude thewhole cells through the holes. The cells then :
Answer» reproduce sexually die from being separated form spicules in the pattern of the CLOTH reassemble into a new organised SPONGE with each cell resuming its ORIGINAL job Solution :reassemble into a new organised sponge with each cell resuming its original job

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : Properties of cell organelles are not always found in the molecular constituents of cell organelles. Justify.

Question : Proper plant growth occurs at a temperature between ..............

Question :Prop roots of banyan tree are meant for

Question : Prolonged angina leads to death of the heart muscle resulting in................

Question : Prokaryotic cells do not have

Question : Prokaryotic cells differ from eukaryotic cells in the :

Question : Prokaryotic cells are about half the size of eukaryotic cells.

Question : Prokaryotic cells are characterised by :

Question : Prokaryotic cell does not have

Question : Projecting ridge in saccule and utricle

Question : Prokaryotic cell differs with eukaryotic cell in not having

Question : Prokaryotic cell and Eukaryotic cell

Question : Prokaryotic cell:

Question : Proenzymes are active/inactive enzyme precursors.

Question : products of proteinscatabolism are

Question : Productivity is the rate of production of biomass expressed in terms ofi) ("kcal" m^3)yr^(-1)ii) g^(-2) yr^(-1) iii) g^(-1) yr^(-1) iv) ("kcal " m^(-2))yr^(-1)

Question : Production of silk from the silkworm by rearing practices on a commercial scale is called ......

Question : Production of parthenocarpic fruits is of no use in

Question : Product of sexual reproduction generally generates

Question : Product of photosynthesis is transported from the leaves to various parts of the plants and stored in some cell before being utilised. What are the cells/tissues that store them ?

Question : Product of photorespiration is

Question : ……….produce sound in human beings.

Question :Prochromosome is the name of

Question : Process of water soluble nutrients go down into the soil horizon and get precipitated as unavailable salts is called

Question : The process of water exudation through hydathodes is called

Question : Process of fumigation works on the principle of ________ .

Question : Problem of Erythroblastosis foetalis due to Rhincompatibility begins from first pregnancy/second pregnancy.

Question : Pristis : Saw fish :: Trygon : .........

Question : Principal fat-digesting enzyme is in the pancreatic juices.

Question : Principle behind the desalination of sea water is __________.

Question : Primitive type of DNA transfer occurs during sexual reproduction in

Question : Primitive nervous system is formed in …………………. .

Question : Primary xylem is developed from

Question : Primary succession refers to development of communities on a

Question : Primary root persists in monocotyledonous plants.

Question : Primary root is : 1. Positively geotropic 2. Positively hydrotropic 3. Negatively geotropic 4. Negatively hydrotropic Code:

Question : primary metabolite : amino acids : : secondary metabolite : ……………

Question : Primary meristems persist throughout the life.

Question : Primary meristems are those which originate

Question : Primary growth is the redponsibility of. . . . . . . . . . Meristem.

Question : Primary growth in a plant is caused due to the activities of : -

Question : Primary CO_2 acceptor of CAM plant :

Question : Prevention of substances from leaking across the tissue is provided by

Question : Prevent blood from re-entering the ventricles after entering the aorta.

Question : Pressure that occurs in a cell due to osmotic diffusion of water inside is called

Question : Pressure that is equal and opposite toturgor pressure.

Question : Pressure on a plant cell wall caused by osmotic movement of water is called

Question : Pressure exerted by the cortical cells of the root upon their liquid contents under a fully turgid condition, forcing a quantity of them into the xylem vessels and through them upwards into the stem is known as ………………………..

Question : Pressure exerted by cell wall to balance turgor pressure is called

Question :Press a sponge through a coarse cloth bag and extrude thewhole cells through the holes. The cells then :