1000+ Cell - the unit of life Multiple Choice Question Answer [Solved]
Thursday 9th of March 2023
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1. The best way to identify a cell as either prokaryotic or eukaryotic is to determine whether
A. it came from a single-celled or multicellular organism.
B. it has a nucleus.
C. it has a plasma membrane.
D. it has cytosol.
Answer : A
A. it came from a single-celled or multicellular organism.
B. it has a nucleus.
C. it has a plasma membrane.
D. it has cytosol.
Answer : A
2. Integral proteins of cell membrane occur on/in
A. inner surfaces
B. outer surfaces
C. phospholipid matrix
D. inner and outer surfaces
Answer : D
A. inner surfaces
B. outer surfaces
C. phospholipid matrix
D. inner and outer surfaces
Answer : D
3. Satellite means
A. terminal part of the chromosome beyond secondary constriction.
B. terminal part of the chromosome beyond primary constriction.
C. terminal part of chromosome beyond tertiary constriction.
D. none of the above
Answer : A
A. terminal part of the chromosome beyond secondary constriction.
B. terminal part of the chromosome beyond primary constriction.
C. terminal part of chromosome beyond tertiary constriction.
D. none of the above
Answer : A
4. Which of the following statements is/are correct ?
A. (ii), (iii) & (iv)
B. (i) only
C. (ii) only
D. (iii) only
Answer : A
- The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles.
- ER helps in the transport of substances, synthesis of proteins, lipoproteins and glycogen.
- Ribosomes are involved in protein synthesis.
- Mitochondria help in oxidative phosphorylation and generation of ATP.
A. (ii), (iii) & (iv)
B. (i) only
C. (ii) only
D. (iii) only
Answer : A
5. Match column-I with column-II and choose the correct option.
A. A III; B IV; C II; D I
B. A IV; B III; C II; D I
C. A I; B II; C III; D IV
D. A IV; B III; C I ; D II
Answer : A
| Column-I | Column-II |
|---|---|
| (Chromosome) | (Position of Centromere) |
| A. Metacentric | I. At the tip |
| B. Submetacentric | II. Almost near the tip |
| C. Acrocentric | III. At the middle |
| D. Telocentric | IV. Slightly away from the middle |
A. A III; B IV; C II; D I
B. A IV; B III; C II; D I
C. A I; B II; C III; D IV
D. A IV; B III; C I ; D II
Answer : A
6. Which of the following pair lack the unit membrane?
A. Nucleus and E.R.
B. Mitochondria and chloroplast
C. Ribosome and nucleolus
D. Golgi body and lysosome
Answer : C
A. Nucleus and E.R.
B. Mitochondria and chloroplast
C. Ribosome and nucleolus
D. Golgi body and lysosome
Answer : C
7. Golgi apparatus is concerned with
A. excretion
B. secretion
C. ATP synthesis
D. RNA synthesis
Answer : A
A. excretion
B. secretion
C. ATP synthesis
D. RNA synthesis
Answer : A
8. Which of these is wrongly matched?
A. Chloroplasts Chlorophyll
B. Elaioplasts Starch
C. Chromoplasts Carotenoids
D. Amyloplasts Carbohydrates
Answer : B
A. Chloroplasts Chlorophyll
B. Elaioplasts Starch
C. Chromoplasts Carotenoids
D. Amyloplasts Carbohydrates
Answer : B
9. Read the statements given below with regard to the functions performed by Golgi apparatus ?
Which of the following is the correct answer ?
A. (i) is wrong but (ii) and (iii) are correct
B. (ii) is wrong but (i) and (iii) are correct
C. (ii) and (iii) are wrong but (i) is correct
D. All are correct.
Answer : D
- Transport and chemically modify the materials contained within it.
- Performs the function of packaging materials.
- Important site of formation of glycoproteins and glycolipids.
Which of the following is the correct answer ?
A. (i) is wrong but (ii) and (iii) are correct
B. (ii) is wrong but (i) and (iii) are correct
C. (ii) and (iii) are wrong but (i) is correct
D. All are correct.
Answer : D
10. Which of the following statements are incorrect ?
A. (i) and (iii)
B. (iii) and (iv)
C. (ii) and (iv)
D. (i) and (iv)
Answer : A
- Plant cells have centrioles which are absent in almost all animal cells.
- Ribosomes are the site of protein synthesis.
- The middle lamella is a layer mainly of calcium carbonate which holds the different neighbouring cells together.
- In animal cell, steroidal hormones are synthesized by smooth endoplasmic reticulum. Of the above statements
A. (i) and (iii)
B. (iii) and (iv)
C. (ii) and (iv)
D. (i) and (iv)
Answer : A
11. Function of contractile vacuole in Amoeba is
A. excretion and osmoregulation.
B. digestion and respiration.
C. osmoregulation and transportation.
D. none of the above.
Answer : A
A. excretion and osmoregulation.
B. digestion and respiration.
C. osmoregulation and transportation.
D. none of the above.
Answer : A
12. Extension of plasma membrane in prokaryotic cell is
A. mesosome
B. haploid
C. ribosome
D. none of these
Answer : A
A. mesosome
B. haploid
C. ribosome
D. none of these
Answer : A
13. Read the folowing statements and identify the correct option.
A. (i) and (ii)
B. (ii) and (iv)
C. (i), (ii) and (iv)
D. None of the above
Answer : C
- Contractile vacuole takes part in osmoregulation and excretion.
- Food vacuole is formed by engulfing the food particles.
- The vacuole is bound by a double membrane called tonoplast.
- Vacuole can occupy upto 90 percent of the volume of the cell.
A. (i) and (ii)
B. (ii) and (iv)
C. (i), (ii) and (iv)
D. None of the above
Answer : C
14. Which one of the following combination is mismatched?
A. Glycocalyx May be capsule or slime layer
B. Pili Reproduction
C. Cell wall Protective, determines shape, prevents from bursting
D. Flagella, pili and fimbriae Surface structures of bacterial cell
Answer : B
A. Glycocalyx May be capsule or slime layer
B. Pili Reproduction
C. Cell wall Protective, determines shape, prevents from bursting
D. Flagella, pili and fimbriae Surface structures of bacterial cell
Answer : B
15. Match column-I with column-II and choose the correct option.
A. A IV; B III; C I; D II
B. A II; B III; C IV; D I
C. A IV; B II; C III; D I
D. A I; B III; C II; D IV
Answer : A
| Column-I | Column-II |
|---|---|
| A. Tonoplast | I. Contain digestive enzyme |
| B. Contractile vacuole | II. Store metabolic gases |
| C. Food vacuole | III. Excretion |
| D. Air vacuole | IV. Transport of ions in plants |
A. A IV; B III; C I; D II
B. A II; B III; C IV; D I
C. A IV; B II; C III; D I
D. A I; B III; C II; D IV
Answer : A
16. In which method of transport, plasma membrane does not require carrier molecule?
A. Active transport
B. Facilitated diffusion
C. Simple diffusion
D. Na+ K+ pump
Answer : C
A. Active transport
B. Facilitated diffusion
C. Simple diffusion
D. Na+ K+ pump
Answer : C
17. The membrane of the erythrocytes has approximately ___% of proteins and ___% lipids.
A. 42, 50
B. 52, 40
C. 50, 50
D. 60, 40
Answer : B
A. 42, 50
B. 52, 40
C. 50, 50
D. 60, 40
Answer : B
18. The diagram given below represent a filuid mosaic model of plasma membrance. Match the components marked as A, B, C, D and E in the diagram below from the list (i) to (vii).
A. A - (i), B - (ii), C - (iii), D - (iv), E - (v)
B. A - (ii), B - (i), C - (iii), D - (iv), E - (v)
C. A - (i), B - (ii), C - (iii), D - (iv), E - (vi)
D. A - (i), B - (ii), C - (iii), D - (vii), E - (v)
Answer : A
- Sugar
- Protein
- Lipid bilayer
- Integral protein
- Cytoplasm
- Cell wall
- External protein
A. A - (i), B - (ii), C - (iii), D - (iv), E - (v)
B. A - (ii), B - (i), C - (iii), D - (iv), E - (v)
C. A - (i), B - (ii), C - (iii), D - (iv), E - (vi)
D. A - (i), B - (ii), C - (iii), D - (vii), E - (v)
Answer : A
19. The lipid component of the membrane mainly consists of __________.
A. polysaccharides
B. phosphoglyceride
C. monosaccharaides
D. both (a) and (c)
Answer : B
A. polysaccharides
B. phosphoglyceride
C. monosaccharaides
D. both (a) and (c)
Answer : B
20. Chromosomes having equal or almost equal arms are called
A. metacentric
B. acrocentric
C. polycentric
D. acentric.
Answer : A
A. metacentric
B. acrocentric
C. polycentric
D. acentric.
Answer : A
21. Both the membranes of mitochondrion are
A. structurally different but functionally similar.
B. structurally as well as functionally different.
C. structurally similar but functionally different.
D. structurally different but functionally similar.
Answer : B
A. structurally different but functionally similar.
B. structurally as well as functionally different.
C. structurally similar but functionally different.
D. structurally different but functionally similar.
Answer : B
22. Select the correct match of the types of neuron present in column I with its location given in column II.
A. A - (i), B - (ii), C - (iii), D - (iv)
B. A - (iii), B - (i), C - (ii), D - (iv)
C. A - (iii), B - (i), C - (iv), D - (ii)
D. A - (i), B - (iv), C - (iii), D - (ii)
Answer : B
| Column I | Column II |
|---|---|
| A. Centrioles | (i) Non-membrane bound organelle which helps in cell division |
| B. Fimbriae | (ii) Special structure of bacteria which help them to attach with rocks in stream and also to host tissue |
| C. Endomembrane | (iii) Includes those organelles system whose functions are coordinated |
| D. Mitochondria | (iv) Divide by fission and site of aerobic respiration |
A. A - (i), B - (ii), C - (iii), D - (iv)
B. A - (iii), B - (i), C - (ii), D - (iv)
C. A - (iii), B - (i), C - (iv), D - (ii)
D. A - (i), B - (iv), C - (iii), D - (ii)
Answer : B
23. Which of the following terms is not correctly matched with its feature?
A. Osmosis Movement of water by diffusion.
B. Nucleoplasm Site of active synthesis of ribosomal RNA.
C. Mesosome Infolding of cell membrane and characteristics of eukaryotes.
D. Pili Elongated tubular surface structures (made of special protein) of bacteria.
Answer : C
A. Osmosis Movement of water by diffusion.
B. Nucleoplasm Site of active synthesis of ribosomal RNA.
C. Mesosome Infolding of cell membrane and characteristics of eukaryotes.
D. Pili Elongated tubular surface structures (made of special protein) of bacteria.
Answer : C
24. _______________ is the important site of formation of glycoproteins and golycolipids.
A. SER
B. Lysosome
C. Golgi apparatus
D. Mitochondria
Answer : C
A. SER
B. Lysosome
C. Golgi apparatus
D. Mitochondria
Answer : C
25. Which of the following will determines the shape of the cells and provides a strong structural support to prevent the bacterium from bursting or collapsing?
A. Plasmids
B. Cell wall
C. Mesosome
D. Cell membrane
Answer : B
A. Plasmids
B. Cell wall
C. Mesosome
D. Cell membrane
Answer : B
26. Choose the incorrect match.
A. Nucleus RNA
B. Lysosome Protein synthesis
C. Mitochondria Respiration
D. Cytoskeleton Microtubules
Answer : B
A. Nucleus RNA
B. Lysosome Protein synthesis
C. Mitochondria Respiration
D. Cytoskeleton Microtubules
Answer : B
27. Who proposed the theory that Cells arise only from the pre-existing cells?
A. Mohl
B. Virchow
C. Haeckel
D. Brown
Answer : B
A. Mohl
B. Virchow
C. Haeckel
D. Brown
Answer : B
28. Microtubules, motor proteins, and actin filaments are all part of the
A. mechanism of photosynthesis that occurs in chloroplasts.
B. rough ER in prokaryotic cells.
C. cytoskeleton of eukaryotic cells.
D. process that moves small molecules across cell membranes.
Answer : C
A. mechanism of photosynthesis that occurs in chloroplasts.
B. rough ER in prokaryotic cells.
C. cytoskeleton of eukaryotic cells.
D. process that moves small molecules across cell membranes.
Answer : C
29. Match column-I with column-II and select the correct option.
A. A - IV, B - V, C - I, D - II
B. A - I, B - II, C - IV, D - III
C. A - IV, B - I, C - II, D - III
D. A - I, B - II, C - III, D - IV
Answer : A
| Column - I | Column - II |
|---|---|
| A. Golgi apparatus | I. Storage |
| B. Mitochondria | II. Photosynthesis |
| C. Vacuoles | III. Transport |
| D. Grana | IV. Secretion |
| .. | V. Respiration |
A. A - IV, B - V, C - I, D - II
B. A - I, B - II, C - IV, D - III
C. A - IV, B - I, C - II, D - III
D. A - I, B - II, C - III, D - IV
Answer : A
30. Protein synthesis in an animal cell occurs
A. on ribosomes present in cytoplasm as well as in mitochondria.
B. on ribosomes present in the nucleolus as well as in cytoplasm.
C. only on ribosomes attached to the nuclears envelope and endoplasmic reticulum.
D. only on the ribosomes present in cytosol.
Answer : A
A. on ribosomes present in cytoplasm as well as in mitochondria.
B. on ribosomes present in the nucleolus as well as in cytoplasm.
C. only on ribosomes attached to the nuclears envelope and endoplasmic reticulum.
D. only on the ribosomes present in cytosol.
Answer : A
31. According to widely accepted fluid mosaic model cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect?
A. Proteins in cell membranes can travel within the lipid bilayer.
B. Proteins can also undergo flip-flop movements in the lipid bilayer.
C. Proteins can remain confined within certain domains of the membrane.
D. Many proteins remain completely embedded within the lipid bilayer.
Answer : B
A. Proteins in cell membranes can travel within the lipid bilayer.
B. Proteins can also undergo flip-flop movements in the lipid bilayer.
C. Proteins can remain confined within certain domains of the membrane.
D. Many proteins remain completely embedded within the lipid bilayer.
Answer : B
32. The cell theory was given in year 1839 by Schleiden and Schwann. According to this theory all organisms are composed of cell and cells are the basic unit of life.
How did this theory help in the field of science?
A. It helped to study the working of cells.
B. It helped in curing diseases caused by cell.
C. It helped in restating the earlier theories on cell.
D. It helped in introducing the se of microscopes to study cell.
Answer : A
How did this theory help in the field of science?
A. It helped to study the working of cells.
B. It helped in curing diseases caused by cell.
C. It helped in restating the earlier theories on cell.
D. It helped in introducing the se of microscopes to study cell.
Answer : A
33. Select the statements which are related to Schwann.
A. Only (i)
B. Only (iii)
C. (i) and (iii)
D. All of these
Answer : D
- He reported that cells have a thin outer layer which is today known as plasma membrane
- Cell wall is a unique character of the plant cell.
- Body of plants and animals are composed of cells and products of cells.
A. Only (i)
B. Only (iii)
C. (i) and (iii)
D. All of these
Answer : D
34. Which of the following pair are correctly matched.
A. Microtubules Structural components of cilia
B. Centrioles Store hydrolytic enzymes
C. Amyloplasts Store oil protein and starch in plants
A. A, B and C
B. A and B
C. A
D. A and C
Answer : C
A. Microtubules Structural components of cilia
B. Centrioles Store hydrolytic enzymes
C. Amyloplasts Store oil protein and starch in plants
A. A, B and C
B. A and B
C. A
D. A and C
Answer : C
35. Active transport differs from passive transport in that active transport
A. requires energy.
B. always requires input of ATP.
C. moves molecules against a concentration gradient.
D. both (a) and (c)
Answer : D
A. requires energy.
B. always requires input of ATP.
C. moves molecules against a concentration gradient.
D. both (a) and (c)
Answer : D
36. You are asked to examine a cell using a powerful light microscope. The image you see has a clearly defined nucleus and mitochondria. It also has a large central vacuole and chloroplasts. From what group of organisms did this cell most likely come?
A. Bacteria
B. Protists
C. Fungi
D. Plants
Answer : D
A. Bacteria
B. Protists
C. Fungi
D. Plants
Answer : D
37. Most of water, in mature plant cells occurs in
A. nucleus
B. cell wall
C. vacuoles
D. cytoplasm
Answer : C
A. nucleus
B. cell wall
C. vacuoles
D. cytoplasm
Answer : C
38. Match column I (cell type) with column II (size) and choose the correct option.
A. A I, B II, C III, D IV
B. A IV, B III, C II, D I
C. A I, B III, C II, D IV
D. A IV, B II, C III, D I
Answer : B
| Column-I | Column-II |
|---|---|
| (Cell type) | (Size) |
| A. Viruses | I. 1-2 ??m |
| B. PPLO | II. 10-20 ??m |
| C. Eukaryotic cell | III. About 0.1 ??m |
| D. Bacterium | IV. 0.02 - 0.2 ??m |
A. A I, B II, C III, D IV
B. A IV, B III, C II, D I
C. A I, B III, C II, D IV
D. A IV, B II, C III, D I
Answer : B
39. Plastids are found in
A. all animal cells.
B. some animal cells.
C. all plant cells.
D. all plant cells and euglenoides.
Answer : D
A. all animal cells.
B. some animal cells.
C. all plant cells.
D. all plant cells and euglenoides.
Answer : D
40. Which of the following is incorrect ?
A. Mycoplasma is the smallest cell (0.3 �).
B. Bacteria are 3 to 5 �m in size.
C. The largest cell is the egg of an ostrich.
D. Nerve cells are some of the smallest cells.
Answer : D
A. Mycoplasma is the smallest cell (0.3 �).
B. Bacteria are 3 to 5 �m in size.
C. The largest cell is the egg of an ostrich.
D. Nerve cells are some of the smallest cells.
Answer : D
41. The following diagram shows some of the missing structures in a plant cell marked as A, B, C, D E. Choose the option with their correct names.
A. A - Plasmodesmata, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
B. A - Desmosome, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
C. A - Plasmodesmata, B - Smooth endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
D. A - Tight junction, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E -Ribosomes
Answer : A
A. A - Plasmodesmata, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
B. A - Desmosome, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
C. A - Plasmodesmata, B - Smooth endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E - Ribosomes
D. A - Tight junction, B - Rough endoplasmic reticulum, C - Golgi apparatus, D - Mitochondrion, E -Ribosomes
Answer : A
42. Which one of the following structures between two adjacent cells is an effective transport pathway?
A. Plasmodesmata
B. Plastoquinones
C. Endoplasmic reticulum
D. Plasmalemma
Answer : A
A. Plasmodesmata
B. Plastoquinones
C. Endoplasmic reticulum
D. Plasmalemma
Answer : A
43. The cytoskeleton is a proteinaceous network of fibres in the cytoplasm. It is involved in
A. mechanical support.
B. motility.
C. maintenace of cell-shape.
D. all of the above
Answer : D
A. mechanical support.
B. motility.
C. maintenace of cell-shape.
D. all of the above
Answer : D
44. Identify the components labelled A, B, C and D in the given section of cilia/flagella showing different parts. Choose the option which shows the correct labelling of parts.
A. A Plasma membrane, B Interdoublet bridge, C Central microtubule, D Radial spoke
B. A Plasma membrane, B Arm, C Central microtubule, D Radial spoke
C. A Plasma membrane, B Interdoublet bridge, C Hub, D Radial spoke
D. A Plasma membrane, B Interdoublet bridge, C Hub, D Arm
Answer : A
A. A Plasma membrane, B Interdoublet bridge, C Central microtubule, D Radial spoke
B. A Plasma membrane, B Arm, C Central microtubule, D Radial spoke
C. A Plasma membrane, B Interdoublet bridge, C Hub, D Radial spoke
D. A Plasma membrane, B Interdoublet bridge, C Hub, D Arm
Answer : A
45. Nucleolus is
A. rounded structure found in cytoplasm near nucleus.
B. rounded structure inside nucleus and having rRNA.
C. rod-shaped structure in cytoplasm near the nucleus.
D. none of the above.
Answer : B
A. rounded structure found in cytoplasm near nucleus.
B. rounded structure inside nucleus and having rRNA.
C. rod-shaped structure in cytoplasm near the nucleus.
D. none of the above.
Answer : B
46. Which of the following statement is correct regarding vacuole?
A. It is membrane-bound and contains storage proteins and lipids.
B. It is membrane-bound and contains water and excretory substances.
C. It lacks membrane and contains air.
D. It lacks membrane and contains water and excretory substances.
Answer : B
A. It is membrane-bound and contains storage proteins and lipids.
B. It is membrane-bound and contains water and excretory substances.
C. It lacks membrane and contains air.
D. It lacks membrane and contains water and excretory substances.
Answer : B
47. Centrioles and centrosomes occur in the cells of
A. green plants
B. animals
C. bacteria and cyanobacteria
D. both (b) and (c)
Answer : B
A. green plants
B. animals
C. bacteria and cyanobacteria
D. both (b) and (c)
Answer : B
48. Given below are some characters of a cell organelle identify the correct organelle which shows all the characters described above.
A. Golgi apparatus
B. Lysosomes
C. Endoplasmic reticulum
D. Vacuoles
Answer : D
- It is a membrane bound space found in the cytoplasm.
- It is bound by a single membrane called tonoplast.
- It contains water, sap, excretory products and other materials not useful to the cell.
- It has higher concentration of sap than the cytoplasm.
A. Golgi apparatus
B. Lysosomes
C. Endoplasmic reticulum
D. Vacuoles
Answer : D
49. The main organelle involved in modification and routing of newly sythesized proteins to their destinations is
A. chloroplast
B. mitochondria
C. lysosome
D. endoplasmic reticulum
Answer : D
A. chloroplast
B. mitochondria
C. lysosome
D. endoplasmic reticulum
Answer : D
50. Difference between the prokaryotic and eukaryotic cells in having
A. cell wall
B. nuclear membrane
C. ribosome
D. none of these
Answer : B
A. cell wall
B. nuclear membrane
C. ribosome
D. none of these
Answer : B
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