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The Fundamental Unit of Life - 2 (Class - IX)

The Fundamental Unit of Life - 2

15 Questions Published
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Questions

Question 1 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 2 Multiple Choice (Single Answer)

In which of the following stages of mitosis do chromosomes decondense and lose their individuality after having reached their respective poles?

  1. Anaphase
  2. Metaphase
  3. Prophase
  4. Telophase
  5. None of these
Question 3 Multiple Choice (Single Answer)

In which of the following phases do sister chromatids separate forming two identical daughter chromosomes

  1. Anaphase
  2. Telophase
  3. Cytokinesis
  4. Karyokinesis
  5. Prophase
Question 4 Multiple Choice (Single Answer)

Which of the following is not a function of nuclear membrane?

  1. It separates the nucleus from cytoplasm.
  2. It provides flexibility to the cell.
  3. It allows the movement of material between the nucleus and cytoplasm.
  4. It contains the genetic material present inside the chromosomes.
Question 5 Multiple Choice (Single Answer)

In the nucleus of each cell, each chromosome is made up of

  1. DNA and histone
  2. RNA and histone
  3. DNA and glycoprotein
  4. RNA and glycoprotein
  5. None of these
Question 6 Multiple Choice (Single Answer)

A cell membrane is made of

  1. lipids
  2. phospholipids
  3. bilayer of phospholipids
  4. protein only
Question 7 Multiple Choice (Single Answer)

Which of the following organelles, which help in cell division, is/are found in animal cells only?

  1. Plastids
  2. Centrioles
  3. Ribosomes
  4. Golgi apparatus
  5. None of these
Question 8 Multiple Choice (Single Answer)

Choose the correct statement with respect to unicellular organisms.

  1. In unicellular organisms, tissues work in coordination to perform different functions.
  2. Unicellular organisms do not require food.
  3. Unicellular organisms respire and reproduce.
  4. All unicellular organisms move by cilia.
Question 9 Multiple Choice (Single Answer)

Match the following:

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Type of bacterium Shape
a. Bacillus 1. Comma-shaped
b. Coccus 2. Rod-shaped
c. Vibrio 3. Spherical-shaped
  1. a - 1, b - 3, c - 2
  2. a - 3, b - 2, c - 1
  3. a - 2, b - 3, c - 1
  4. a - 2, b - 1, c - 3
  5. a - 1, b - 2, c - 3
Question 10 Multiple Choice (Single Answer)

Which of the following pairs is correctly matched?

  1. Mitochondria – Production of ATP
  2. Golgi body – Synthesis of protein
  3. Lysosome – Synthesis of fats and lipids
  4. Ribosomes – Destruction of foreign substances
Question 11 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Chloroplasts are not found in the root cells of a plant.
b. The organelles containing pigments present in the cytoplasm of plant cells are called vacuoles.
c. The red colour of tomatoes is due to the presence of red-coloured plastids in their cells.

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

Which of following pairs of ‘cell organelle - corresponding function’ is/are incorrectly matched?

  1. Rough endoplasmic reticulum - Protein synthesis
  2. Mitochondria - Lecithin synthesis
  3. Chloroplast - Digestion of food particles
  1. Only 1
  2. Only 2
  3. Only 3
  4. Both 1 and 2
  5. Both 2 and 3
Question 13 Multiple Choice (Single Answer)

Which of the following cells are bean-shaped?

  1. Muscle cells
  2. Guard cells of stomatal pores
  3. Nerve cells
  4. White blood cells
Question 14 Multiple Choice (Single Answer)

Which of the following terms describes the movement of water from a region of higher concentration to a region of lower concentration through a semipermeable membrane?

  1. Diffusion
  2. Osmosis
  3. Endocytosis
  4. Plasmolysis
Question 15 Multiple Choice (Single Answer)

Which of the following statements are correct about cell wall?
a. It is made of a complex carbohydrate called cellulose.
b. It is found in both plant and animal cells.
c. It is semi-permeable.
d. It is hard and rigid.

  1. Only a and b
  2. Only a and c
  3. Only a and d
  4. All a, b, c and d
  5. None of these
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