Chapter 2 Plant Cell

Question 1

Structure of a cytoplasm and its function

Answer 1

Contains a jelly like medium which contains components of suspended cells
Contains organic and inorganic compounds
Acts as a medium for biochemical reactions

Question 2

Structure of a chloroplast and its function

Answer 2

Oval shaped
Has 2 layers of membrane
Contains chlorophyll pigments which give plants its green color
Chlorophyll absorbs sunlight and converts it into chemical energy during photosynthesis

Question 3

Structure of a cell wall and its function

Answer 3

Hard and rigid outer layer
Fully permeable
Made from cellulose fiber
Maintains shape of plant cells and provide mechanical support

Question 4

Structure of a vacuole and its function

Answer 4

Liquid filled sac (cell sap)
Surrounded by tonoplast membrane
( Contains water, organic acids, sugars, amino acids, enzymes, mineral salts, oxygen, carbon dioxide and metabolic by products )
Absorbs water, turning the cell turgid
(unicellular organisms) Contracts during osmoregulation, osmosis and regulation