Column I list a few activities of living organisms and column II the activity of cells related to them. Match the items in the two columns. Column I (Activity of organism) Column II (Activity of cells) (i) Repair (a) Contractility of cells (ii) Cooling of body (b) Cells devour germs (iii) Movement (c) Cell division (iv) Protection from diseases (d) Gland cells give out sweat for evaporation

(i) -→ (c) Cell division helps to produce new cells. This helps to repair the worn and torn cells and also helps in the regeneration of cells. (ii) -→ (d) Sweat glands present in our body releases sweat out of the body for evaporation then, the body cools down. (iii) -→ (a) The actin cytoskeleton plays a central role in cell contractility. This helps in the movement of an organism. (iv) -→ (b) White blood cells are amoeboid and it protects the body from the diseases by engulfing foreign particles and germs. Column I (Activity of organism) Column II (Activity of cells) (i) Repair (c) Cell division (ii) Cooling of body (d) Gland cells give out sweat for evaporation (iii) Movement (a) Contractility of cells (iv) Protection from diseases (b) Cells devour germs

E M B I B E

Concise Biology Part - 1>Chapter 3 - Cell : The Unit of Life>PROGRESS CHECK>Q 4

MEDIUM

9th ICSE

IMPORTANT

Earn 100

Mention the following statements are true or false. If false, suggest the change in the information underlined.

Bacteria have no nuclear membrane but possess chloroplast.

Important Questions on Cell : The Unit of Life

MEDIUM

9th ICSE

IMPORTANT

Concise Biology Part - 1>Chapter 3 - Cell : The Unit of Life>PROGRESS CHECK>Q 1

Column I list a few activities of living organisms and column II the activity of cells related to them. Match the items in the two columns.

Column I (Activity of organism)	Column II (Activity of cells)
(i) Repair	(a) Contractility of cells
(ii) Cooling of body	(b) Cells devour germs
(iii) Movement	(c) Cell division
(iv) Protection from diseases	(d) Gland cells give out sweat for evaporation