NCERT Class VIII Science Solutions: Chapter 8-Cell Structure and Functions Part 2

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Question 8:

Read the following terms and select the pair that is related to inheritance of characters.

  1. Cell wall and cell membrane

  2. Chromosome and mitochondria

  3. Chloroplast and cell membrane

  4. Chromosome and genes

Answer: D

Question 9:

Choose the correct statement:

  1. Genes are located in the chromosomes.

  2. Cell is located in the nucleus.

  3. Chromosomes are located in the nucleolus.

  4. Cell membrane surrounds the nucleus.

Answer: A

Question 10:

Green colour of leaves is due to presence of the pigment_____

  1. Chlorophyll

  2. Ribosomes

  3. Mitochondria

  4. Chloroplast

Answer: A

Image of benefit of Chlorophyll

Image of Benefits of Chlorophyll

Image of benefit of Chlorophyll

Question 11:

The unit of measurement used for expressing dimension (size) of cells is:

  1. Centimeter

  2. Millimeter

  3. Micrometer

  4. Meter

Answer: C

Question 12:

The most important function of cell membrane is that it:

  1. Controls the entry and exit of materials from cells.

  2. Controls only the entry of materials into cells.

  3. Controls only the exit of materials from cells.

  4. Allows entry and exit of materials without any control.

Answer: A

Image of function of cell membrane

Image of Function of Cell Membrane

Image of function of cell membrane

Question 13:

Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of

  1. Blood cells

  2. Skin surface

  3. Nerve cells

  4. Nucleus of cells

Answer: C

Question 14:

Of the following parts of a cell listed below, name the part that is common to plant cell, animal cell and a bacterial cell.

  1. Chloroplast

  2. Cell wall

  3. Cell membrane

  4. Nucleus

Answer: C