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The Fundamental Unit of Life: Cell

The Fundamental Unit of Life Cell

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is not a property of a multicellular organism?

  1. Cells are specialised to perform different functions of the body.
  2. A single cell performs one or few activities of the organism.
  3. A multicellular organism consists of large number of cells.
  4. Only some cells of the body called germ cells take part in reproduction.
  5. The life span of an individual cell is short.
Question 2 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Electron microscope uses a beam of electrons instead of light.
b. According to the cell theory, all metabolic reactions take place outside the cell.
c. Cells of multicellular organism are different in shape and size.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 3 Multiple Choice (Single Answer)

Which of the following is a property of a prokaryotic cell?

  1. Size of a cell is generally large.
  2. Nucleus is absent.
  3. It contains more than one chromosome.
  4. Nucleolus is present in prokaryotic cell.
  5. Cell division occurs by mitotic or meiotic cell division.
Question 4 Multiple Choice (Single Answer)

Which of the following is not a property of organelles?

  1. They coordinate to produce the cell.
  2. They are very small sized.
  3. They are mostly internal.
  4. They are formed of tissues and tissues comprise of cells.
  5. They are found in all eukaryotic cells.
Question 5 Multiple Choice (Single Answer)

A cell has both living and non-living parts. Which of the following is the non-living part of a cell?

  1. Plasma membrane
  2. Mitochondria
  3. Golgi apparatus
  4. Ribosomes
  5. Vacuoles
Question 6 Multiple Choice (Single Answer)

Plasma membrane is present in cells of plants, animals and microorganisms. It does not contain

  1. phospholipids
  2. proteins
  3. fats
  4. cholesterol
  5. polysaccharides
Question 7 Multiple Choice (Single Answer)

Which of the following are the biological activities that are performed by the plasma membrane?

a. Diffusion
b. Osmosis
c. Active transport
d. Endocytosis

  1. Only a and b
  2. Only a and c
  3. Only a and d
  4. Only b and c
  5. Only c and d
Question 8 Multiple Choice (Single Answer)

Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of a cell wall?

  1. It regulates the cell cycle.
  2. It has narrow pores through which fine strands of cytoplasm are able to pass.
  3. It permits the plant to become turgid.
  4. It provides mechanical strength and support to the cell.
  5. It is freely permeable to water and substances in solution.
Question 9 Multiple Choice (Single Answer)

Which of the following is a large centrally located spherical cellular component that is bounded by two nuclear membranes?

  1. Cytoplasm
  2. Nucleus
  3. Endoplasmic reticulum
  4. Ribosome
  5. Lysosome
Question 10 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Nucleolus is known as the factory of ribosomes.
b. Nucleus is concerned with the transmission of hereditary traits from the parent to offspring.
c. Golgi apparatus is helpful in protein synthesis in the cytoplasm.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only c
Question 11 Multiple Choice (Single Answer)

Smooth ER does not play an important role in the biosynthesis of which of the following?

a. Glycolipids
b. Phospholipids
c. Polysaccharides
d. Cholesterol

  1. Only a and b
  2. Only a, b and c
  3. Only a and c
  4. Only c
  5. Only c and d
Question 12 Multiple Choice (Single Answer)

Which of the following are tiny bodies of varying shapes and size, distributed in the cytoplasm?

  1. Mitochondria
  2. Lysosomes
  3. Golgi apparatus
  4. Chloroplasts
  5. Vacuoles
Question 13 Multiple Choice (Single Answer)

Which of the following is not a property of chromoplasts?

  1. They do not change into other type of plastids.
  2. They are found in unexposed cells.
  3. They are irregular in shape.
  4. They range from brownish to reddish in colour.
  5. They provide colour to the organs.
Question 14 Multiple Choice (Single Answer)

Match the following:

 
Names of cells Functions
a. Oxyntic cell 1. Its function is to secrete mucus for lubricating the food.
b. Zymogen cell 2. Its function is to secrete a proenzyme of protein digestive enzyme.
c. Mucous cell 3. Its function is to secrete hydrochloric acid and activate pepsinogen into the functional pepsin.
  1. a - 3, b - 2, c - 1
  2. a - 3, b - 1, c - 2
  3. a - 2, b - 1, c - 3
  4. a - 2, b - 3, c - 1
  5. a - 1, b - 2, c - 3
Question 15 Multiple Choice (Single Answer)

Match the following:

 
a. Receptor-mediated endocytosis 1. In this, the plasma membrane binds to a large particle and extends to engulf it.
b. Potocytosis 2. It is a mechanism for selective uptake of the ligands in clathrin-coated pits.
c. Phagocytosis 3. In this, small areas of plasma membrane, bearing specific receptors for a small molecule or ion invaginate to form caveolae.
  1. a - 1, b - 2, c - 3
  2. a - 2, b - 1, c - 3
  3. a - 2, b - 3, c - 1
  4. a - 3, b - 2, c - 1
  5. a - 1, b - 3, c - 2
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