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The Fundamental Unit Of Life

The Fundamental Unit Of Life - Cell 2

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is a multicellular organism?

  1. Amoeba
  2. Yeast
  3. Human body
  4. Archaebacteria
  5. Eubacteria
Question 2 Multiple Choice (Single Answer)

Who coined the term protoplasm for the fluid substance of the cell?

  1. Anton von Leeuwenhoek
  2. Purkinje
  3. Virchow
  4. Robert Hooke
  5. Haeckel
Question 3 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. All cells are capable of carrying out basic functions like nutrition, respiration, growth and reproduction.
b. All the cells use different mechanisms for energy metabolism.
c. In multicellular organisms, cells are specialised to perform different functions of the body so that there is a division of labour within the cell.

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

Which of the following is responsible for secreting a proenzyme of protein digestive enzyme called pepsiogen?

  1. Zymogen cells
  2. Mucous cells
  3. Cardiac muscle cells
  4. Skeletal muscle cells
  5. Parietal cells
Question 5 Multiple Choice (Single Answer)

Which of the following is/are present in a eukaryotic cell, but absent in a prokaryotic cell?

  1. Plasma membrane
  2. Nucleolus
  3. Flagellum
  4. Ribosomes
  5. Chromosomes
Question 6 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Nucleoid has a covering of double membrane envelop.
b. The DNA content in a nucleoid is equal to a single DNA molecule.
c. The DNA of a nucleus is associated with histone proteins to form cromatin.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 7 Multiple Choice (Single Answer)

Which of the following is the largest (in percentage) key element present in the structure of the plasma membrane?

  1. Protein
  2. Phospholipid
  3. Cholesterol
  4. Polysaccharide
  5. Mitochondrion
Question 8 Multiple Choice (Single Answer)

In a multicellular organism, the shape of a cell depends upon the

  1. functional adaptations
  2. surface tension
  3. viscosity of the protoplasm
  4. All of the above
  5. mechanical action exerted by the adjoining cells
Question 9 Multiple Choice (Single Answer)

Which of the following cells are discoidal?

  1. Pigment cells of the skin
  2. Red blood cells
  3. Nerve cells
  4. Smooth muscle fiber cells
  5. Chromatophores
Question 10 Multiple Choice (Single Answer)

______ is the outermost covering in a plant cell.

  1. Nuclear membrane
  2. Vacuole
  3. Plasma membrane
  4. Cell wall
  5. Endoplasmic reticulum
Question 11 Multiple Choice (Single Answer)

Nuclear envelope encloses a space between two nuclear membranes and is connected to a system of membranes called the _____________.

  1. nucleolus
  2. nucleoplasm
  3. chromatin
  4. endoplasmic recticulum
  5. tonoplast
Question 12 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. The process of diffusion can occur only in liquid medium.
b. In the process of osmosis, a semi-permeable membrane is required.
c. Equilibrium in the free energy of solvent molecules is never achieved in osmosis.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 13 Multiple Choice (Single Answer)

The nucleolus, which is not bounded by any membrane, is rich in protein and _______________.

  1. ribosomes
  2. chromatin
  3. DNA
  4. vacuoles
  5. RNA
Question 14 Multiple Choice (Single Answer)

The process by which the membrane of a vesicle can fuse with the plasma membrane and extrude its contents to the surrounding medium is called ____________.

  1. phagocytosis
  2. photocytosis
  3. endocytosis
  4. exocytosis
  5. receptor-mediated endocytosis
Question 15 Multiple Choice (Single Answer)

Which of the following constituents has the highest percentage in a cytoplasm?

  1. Carbon
  2. Oxygen
  3. Calcium
  4. Hydrogen
  5. Nitrogen
Question 16 Multiple Choice (Single Answer)

Secretion is the main function of

  1. golgi apparatus
  2. mitochondria
  3. lysosomes
  4. ribosomes
  5. centrosomes
Question 17 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Cells divide to produce cells of their own kind as all cells come from pre-existing cells.
b. The theory that all the plants and animals are composed of cells and that cell is the basic unit of life was proposed by Purkinje in 1839.
c. Plasma membrane allows or permits the entry and exit of some materials in and out of the cell.

  1. Only a
  2. Both a and b
  3. Only b
  4. Both b and c
  5. Only c
Question 18 Multiple Choice (Single Answer)

Which of the following functions are performed by a cell with the help of its various membrane-bound organelles?

  1. A cell has to synthesise substances.
  2. It has to secrete cell products.
  3. It has to digest those substances which are taken up by the cell during endocytosis.
  4. It has to generate energy.
  5. All of the above
Question 19 Multiple Choice (Single Answer)

Which of the following is known as the 'powerhouse' of a cell?

  1. Centrosomes
  2. Mitochondria
  3. Endoplasmic reticulum
  4. Plastids
  5. Peroxisomes
Question 20 Multiple Choice (Single Answer)

Match the following:

 
a. Cell wall 1. A large, centrally located spherical cellular component bounded by two nuclear membranes
b. Cytoplasm 2. The part of cell which occurs between the plasma membrane and nuclear envelope
c. Nucleus 3. The rigid outermost cell layer found in plants, but absent in animal cells
  1. a - 3, b - 1, c - 2
  2. a - 3, b - 2, c - 1
  3. a - 2, b - 3, c - 1
  4. a - 1, b - 2, c - 3
  5. a - 1, b - 3, c - 2
Question 21 Multiple Choice (Single Answer)

Which of the following statements regarding mitochondria is false?

  1. Mitochondria occur in the cells of aerobic organisms with the exception of mammalian RBCs.
  2. They are colourless.
  3. They are generally disc-like in the outline.
  4. They liberate energy.
  5. Mitochondria perform oxidation of food.
Question 22 Multiple Choice (Single Answer)

Match the following
a. Plastids 1. They are small and spherical organelles containing powerful oxidative enzymes.
b. Vacuoles 2. They are self-replicating organelles like the mitochondria.
c. Peroxisomes 3. They are fluid-filled or solid-filled and membrane bounded organelle.
  1. a - 2, b - 1, c - 3
  2. a - 1, b - 2, c - 3
  3. a - 3, b - 2, c - 1
  4. a - 2, b - 3, c - 1
  5. a - 1, b - 3, c - 2
Question 23 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Except the protozoan Euglena, no animal cell possesses plastids.
b. Cell wall is absent in an animal cell.
c. Animal cells have many simpler units of Golgi apparatus called dictyosomes.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 24 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Plant cells are larger than animal cells.
b. Vacuoles in plant cells are many, small and temporary.
c. Plant cells lack centrosome and centrioles.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 25 Multiple Choice (Single Answer)

Which of the following is the site of 'dark reaction' during photosynthesis, that involves chloroplasts?

  1. Granum
  2. Thylakoid
  3. Lamella
  4. Stroma
  5. Ribosome
Question 26 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Chromoplasts are white in colour.
b. Leucoplasts can change to other types of plastids.
c. Chromoplasts provide colour to organs to attract pollinators and disseminators.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 27 Multiple Choice (Single Answer)

Match the following:

 
a. Chromoplasts 1. Green-coloured plastids
b. Chloroplasts 2. Coloured plastids (except green colour)
c. Leucoplasts 3. The colourless plastids
  1. a - 2, b - 1, c - 3
  2. a - 2, b - 3, c - 1
  3. a - 1, b - 3, c - 2
  4. a - 1, b - 2, c - 3
  5. a - 3, b - 1, c - 2
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