Topic 1 - Characteristics Of Life, Organisation And Cells

Question 1

Cell membrane

Answer 1

Controls which substance can pass in and out of the cell

Question 2

Nucleus

Answer 2

Contains DNA and controls the cells activity

Question 3

Cytoplasm

Answer 3

A gel-like substance where most of the cells chemical reactions take place. It also contains enzymes

Question 4

Mitochondria

Answer 4

Small organelles where most of the reactions for aerobic respiration takes place. Respiration transfers energy that the cell needs to work

Question 5

Ribosomes

Answer 5

Small organelles where proteins are made in the cell

Question 6

Cell wall (plant cell only)

Answer 6

Made of cellulose and supports the cell and strengthens it

Question 7

Vacuole (plant cell only)

Answer 7

Contains SAP (a weak solution of sugars and salts) it helps support the cell

Question 8

Chloroplast (plant cell only)

Answer 8

It makes food for the plant. It has a green substance called chlorophyll which is used in photosynthesis