22339 + Interview Questions in Biology in Class 11

1.	Question : Cells of the tissue are living and show angular wallthickening. They also provide mechanical support. Thesaid tissue is .....
Answer» SOLUTION :COLLENCHYMA

Discussion

2.	Question : Cells of the pancreas are not digested by their own enzymes because
Answer» Enzymes are secreted in INACTIVE form Cells are lined by MUCOUS membrane Enzymes are released only when needed None of the above Answer :A

Discussion

3.	Question : Cells of the liver manufacture
Answer» Diastese Amylase Lipase Insulin Answer :A

Discussion

4.	Question : Cells of mammalian cartilage undergoes____
Answer» AMITOSIS Meiosis Mitosis Equational division Solution :Amitosis

Discussion

5.	Question : Cells of collenchyma differ from parenchyma cells mainly in
Answer» Lacking PROTOPLASM Possesing unevenly thickened WALLS Containing CHLOROPLASTS Being meristematic Answer :B

Discussion

6.	Question : Cells of all living organisms have a nucleus.A. TrueB. False
Answer» ANSWER :FALSE

Discussion

7.	Question : Cells have a dual role in multicellular organisms'. Explain this statement.
Answer» SOLUTION :Cell CARRY on some FUNCTION (UTILIZATION of food, RESPIRATION, excretion, biosynthesis, etc.) for themselves, and some for the organism (support, locomotion, secretion, etc.)

Discussion

8.	Question : Cells divide and new cells are formed from pre-existing cells. This concept was given by :
Answer» Malthias SCHLEIDEN Theodore SCHWANN Malthias Schleiden & T. Schwann RUDOLF Virchow Answer :D

Discussion

9.	Question : Cells are totipotent. What is meant by this ?
Answer» Solution :All CELLS have a capacity to differentiate into any TYPE of cells, to regenerate any part and to form a NEW ORGANISM.

Discussion

10.	Question : State whether the following statement is true or false.Cells are surrounded by a plasma membrane.A. TrueB. False
Answer» ANSWER :TRUE

Discussion

11.	Question : Cells are less lignified in
Answer» Xylem TRACHEIDS PHLOEM FIBRES Xylem vessels Hard fibers Answer :B

Discussion

12.	Question : What is the meaning of cells are formed de novo from abiotic materials.
Answer» ANSWER :FALSE

Discussion

13.	Question : Cell without membrane bound nucleus.
Answer» SOLUTION :PROKARYOTIC

Discussion

14.	Question : Cell walls show unevenly thickened hypodermis in
Answer» MAIZE SUNFLOWER JOWAR Bajra Answer :B

Discussion

15.	Question : Cell wall of red algae protects the brown algae from drying or freezing on their exposure to air .
Answer» Solution :Cell wall in RED ALGAE is made of polysulphate esters ALONG with pectic materials .

Discussion

16.	Question : Cell wall of plant cell is
Answer» semi-permeable selectively permeable fully permeable IMPERMEABLE. Solution :A membrance is said to be permeable to a substance, if it allows the passage of the substance through it. This property is TERMED as PERMEABILITY. The Plant cell wall is permemable because it allows both solvent and solute molecules to pass through it. On the other hand, CUTICLE layer is impermeable bacasue it does not allow both the solvent and the solute particales to pass through it.

Discussion

17.	Question : Cell wall of collenchyma composed of
Answer» CELLULOSE HEMI cellulose PECTIN All Answer :D

Discussion

18.	Question : Cell wall materials like ligin and suberin result in the formation of
Answer» PRIMARY wall Middle lamellum Secondary wall TERTIARY wall Answer :C

Discussion

19.	Question : Cell wall is made of aninner layer of cellulose and an outer layer of pectose, in
Answer» Ectocarpus Sargassum Chara Gracilaria Solution :Cell wall is MADE of an INNER layer of CELLULOSE and an outer layer of pectose in Chara/green ALGAE.

Discussion

20.	Question : Cell wall is present in
Answer» PLANT CELLS PROKARYOTIC cell Fungi cells All the above Answer :D

Discussion

21.	Question : Cell wall is absent in :
Answer» Funaria Mycoplasma Nostoc Aspergillus ANSWER :B

Discussion

22.	Question : Cell wall consists of
Answer» Lignin, HEMICELLULOSE, protein and lipid Hemicellulose, CELLULOSE, TUBULIN and lignin Lignin, hemicellulose, pectin and lipid Lignin, hemicellulose, pectin and cellulose. Answer :D

Discussion

23.	Question : Cell wall has stiff cellulose plates on the surface of cells in
Answer» Gonyaulax Euglena Diatoms SLIME moulds Answer :A

Discussion

24.	Question : Cell wall bacteria and blue green algae is composed of
Answer» Muramic acid Chitin Lipoprotein Glycolipid Answer :A

Discussion

25.	Question : Cell theory was modified by ____
Answer» Schwann Schleiden VIRCHOW Dutrochet Solution :Virchow

Discussion

26.	Question : Cell theory was given by
Answer» ROBERT Hooke Robert Brown Schleiden and Schwann Messelson and Stahl Answer :C

Discussion

27.	Question : 'Cell theory' was established by :
Answer» ROBERT Brown Rudolf VIRCHOW Robert Hooke SCHLEIDEN and SCHWANN Solution :Schleiden and Schwann

Discussion

28.	Question : Cell theory as proposed by Schleiden and Schwann explains
Answer» Cell is the hereditary UNIT All cells ARISE from pre- existing cells Cell is the structural and FUNCTIONAL unit of some organisms All living organisms are composed of cellsand products of cell ANSWER :D

Discussion

29.	Question : Cell structures that are exclusively found in animal cells but not in plant cells are
Answer» PLASTIDS CELL wall Centrioles GAS vacuoles Answer :C

Discussion

30.	Question : Cell products are secreted from the cell through:
Answer» FACILITATED TRANSPORT active transport ENDOCYTOSIS EXOCYTOSIS SOLUTION :exocytosis

Discussion

31.	Question : Cell organelles which can be seen only with electron microscope are
Answer» Plastids Mitochondria ENDOPLASMIC reticulum Ribosomes ANSWER :D

Discussion

32.	Question : Cell organelles which are not included in the endomembrane system of a cell are
Answer» MITOCHONDRIA Peroxysome Chloroplast All the above ANSWER :D

Discussion

33.	Question : Cell organelles which help in the digestion of carbohydrates proteins and nucleic acids are
Answer» GLYOXYSOMES Peroxysomes Lysosomes SPHEROSOMES ANSWER :C

Discussion

34.	Question : Cell organelles associated with secretion are
Answer» MITOCHONDRIA ribosomes golgi complex chloroplasts ANSWER :C

Discussion

35.	Question : Cell oganelle which is not bounded by any membrane
Answer» Centriole Spherosome Vacuole Ribosome ANSWER :D

Discussion

36.	Question : Cell organelle not found in erythrocytes of many mammals is
Answer» MITOCHONDRIA RIBOSOMES Nucleus All ANSWER :C

Discussion

37.	Question : Cell organelle rich in acid phosphatase and other hydrolyticenzymes is …….
Answer» SOLUTION :LYSOSOME

Discussion

38.	Question : Cell organelle rich in almost all types of hydrolytic enzymes in a cell is
Answer» MITOCHONDRIA Chloroplast Lysosomes CYTOPLASM ANSWER :C

Discussion

39.	Question :Cell membranes consist mainly of a :
Answer» carbohydrate BILAYER and proteins protein bilayer and phospholipids LIPID bilayer and proteins NONE of the above Solution :lipid bilayer and proteins

Discussion

40.	Question : Cell membrane of Archaebacteria has ………….
Answer» glycine and ISOPROPYL ETHERS glycerol and ISOBUTYL ethers glycerol and isopropyl ethers cellulose and isobutyl ethers Answer :C

Discussion

41.	Question : Cell membrane carbohydrates participate in :
Answer» cell adhesions cell-to-cell recognition transporting SUBSTANCES across the membrane HYDROPHILIC attractions Solution : cell-to-cell recognition

Discussion

42.	Question : Cell is the basic unit of life. Discuss in brief.
Answer» SOLUTION :The organisms which are composed of many CELLS are called MULTICELLULAR organisms. The organisms which are composed of a single cell are called unicellular organism. Unicellular organisms do possess independent existence. They are capable of performing essential functions of life. Anything less than a complete structure of a cell does not ENSURE independent living

Discussion

43.	Question : Cell in some filamentous cyanobacteria which is specialised for nitrogen fixation is called:
Answer» HETEROCYST MESOSOME Volutin Phycobillisome ANSWER :A

Discussion

44.	Question : Cell elongation in internodal regions of the green plants takes place due to
Answer» INDOLE ACETIC acid cytokinins gibberellins Ethylene Answer :C

Discussion

45.	Question : Cell elongation in Internodal regions of the green plants takes due to
Answer» INDOLE ACETIC acid cytokinins gibberellins ETHYLENE

Discussion

46.	Question : Cell drinking is :
Answer» Exocytosis Pinocytosis Phagocytosis None of these Answer :B

Discussion

47.	Question : Cell divison in cells can be arrested by use of a substance called ___________.
Answer» ANSWER :COLCHICINES

Discussion

48.	Question : Cell division is itself a type of reproduction in.
Answer» Euglena Penicillum Rhizopus Liver worts Answer :A

Discussion

49.	Question : Cell cyle was discovered by
Answer» SINGER & Nicholson Prevost & Dumans Schleider & Schwann Boveri Answer :B

Discussion

50.	Question : Cell cycle was discovered by_____
Answer» SINGER & Nicolson Prevost & Dumans Schleider & Schwann Boveri Solution :Prevost & Dumans

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : Cells of the tissue are living and show angular wallthickening. They also provide mechanical support. Thesaid tissue is .....

Question : Cells of the pancreas are not digested by their own enzymes because

Question : Cells of the liver manufacture

Question : Cells of mammalian cartilage undergoes____

Question : Cells of collenchyma differ from parenchyma cells mainly in

Question : Cells of all living organisms have a nucleus.A. TrueB. False

Question : Cells have a dual role in multicellular organisms'. Explain this statement.

Question : Cells divide and new cells are formed from pre-existing cells. This concept was given by :

Question : Cells are totipotent. What is meant by this ?

Question : State whether the following statement is true or false.Cells are surrounded by a plasma membrane.A. TrueB. False

Question : Cells are less lignified in

Question : What is the meaning of cells are formed de novo from abiotic materials.

Question : Cell without membrane bound nucleus.

Question : Cell walls show unevenly thickened hypodermis in

Question : Cell wall of red algae protects the brown algae from drying or freezing on their exposure to air .

Question : Cell wall of plant cell is

Question : Cell wall of collenchyma composed of

Question : Cell wall materials like ligin and suberin result in the formation of

Question : Cell wall is made of aninner layer of cellulose and an outer layer of pectose, in

Question : Cell wall is present in

Question : Cell wall is absent in :

Question : Cell wall consists of

Question : Cell wall has stiff cellulose plates on the surface of cells in

Question : Cell wall bacteria and blue green algae is composed of

Question : Cell theory was modified by ____

Question : Cell theory was given by

Question : 'Cell theory' was established by :

Question : Cell theory as proposed by Schleiden and Schwann explains

Question : Cell structures that are exclusively found in animal cells but not in plant cells are

Question : Cell products are secreted from the cell through:

Question : Cell organelles which can be seen only with electron microscope are

Question : Cell organelles which are not included in the endomembrane system of a cell are

Question : Cell organelles which help in the digestion of carbohydrates proteins and nucleic acids are

Question : Cell organelles associated with secretion are

Question : Cell oganelle which is not bounded by any membrane

Question : Cell organelle not found in erythrocytes of many mammals is

Question : Cell organelle rich in acid phosphatase and other hydrolyticenzymes is …….

Question : Cell organelle rich in almost all types of hydrolytic enzymes in a cell is

Question :Cell membranes consist mainly of a :

Question : Cell membrane of Archaebacteria has ………….

Question : Cell membrane carbohydrates participate in :

Question : Cell is the basic unit of life. Discuss in brief.

Question : Cell in some filamentous cyanobacteria which is specialised for nitrogen fixation is called:

Question : Cell elongation in internodal regions of the green plants takes place due to

Question : Cell elongation in Internodal regions of the green plants takes due to

Question : Cell drinking is :

Question : Cell divison in cells can be arrested by use of a substance called ___________.

Question : Cell division is itself a type of reproduction in.

Question : Cell cyle was discovered by

Question : Cell cycle was discovered by_____