2.1

Question 1

Name the parts of an animal cell.

Answer 1

Cell membrane
Cytoplasm 
Nucleus 
Mitochondria 
Ribosomes

Question 2

What is the function of cell membrane?

Answer 2

Controls the molecules that can enter and leave the cell

Question 3

What is the function of a nucleus?

Answer 3

Contains DNA which controls the activities of the cell

Question 4

What is the function of cytoplasm?

Answer 4

Contains enzymes to carry out reactions in the cell

Question 5

What do mitochondria do?

Answer 5

Release energy by respiration

Question 6

What do ribosomes do?

Answer 6

Carry out protein synthesis to make proteins

Question 7

What are the parts of a plant cell?

Answer 7

Cell membrane 
Cytoplasm 
Nucleus
Ribosomes 
Mitochondria 

Cell wall
Vacuole
Chloroplasts

Question 8

What do plant cells do to aid photosynthesis?

Answer 8

Trap light

Question 9

What do chloroplasts do?

Answer 9

Absorb light energy to make food (photosynthesis)

Question 10

What is the cell wall made of? What does it do?

Answer 10

Cellulose

Strengthens the cell

Question 11

Why does a plant need a cell wall and an animal cell doesn’t?

Answer 11

A plant doesn’t have a skeleton

Question 12

What in is the permanent vacuole?

Answer 12

Cell sap

Question 13

What cell structure is an algae structure the same as?

Answer 13

Plant cell

Question 14

What are flagella for?

Answer 14

Aids movement.

Question 15

How does flagella help algae cells?

Answer 15

Helps it swim towards the light

Question 16

What are all living thins made up of?

Answer 16

Cells

Question 17

What is special about yeast and bacterial cells?

Answer 17

Single-celled organisms

Question 18

What are the parts of a yeast cell?

Answer 18

Nucleus
Cell membrane
Cell wall
Cytoplasm

Question 19

What are the parts of a bacteria cell?

Answer 19

Cell membrane
Cell wall
Cytoplasm
Strand of DNA

Question 20

What doesn’t a bacteria cell not have?

Answer 20

Nucleus

Question 21

What is meant by a specialised cell?

Answer 21

They have special features so they can carry out their job

Question 22

What is the function of a sperm cell?

Answer 22

Swim to egg

Question 23

What special features does a sperm cell have? What do they do?

Answer 23

Tail- swimming
Streamlined - helps movement
Mitochondria- respire and release energy
Enzymes- digest egg wall

Question 24

What is the function of a red blood cell?

Answer 24

Carry oxygen from lungs to cells

Question 25

What special features does a red blood cell have? What do they do?

Answer 25

Haemoglobin- sticks to oxygen Large S.A- increase oxygen diffusion No Nucleus-extra room for haemoglobin

Question 26

What is the function of a nerve cell?

Answer 26

Send electrical impulses around body

Question 27

What is the function of a palisade cell?

Answer 27

Absorb light for photosynthesis

Question 28

What is the main feature of a palisade cell? What's it for?

Answer 28

Chloroplasts- absorb light

Question 29

What is the function of a root-hair cell?

Answer 29

Absorb water and minerals from the soil .

Question 30

What features does a root-hair cell have?

Answer 30

Long hair-increase S.A | No chloroplasts

Question 31

What does diffusion mean?

Answer 31

Movements of molecules from a high concentration to a low concentration.

Question 32

What do cells need to be able to release energy in respiration?

Answer 32

Oxygen

Question 33

How does oxygen enter cells

Answer 33

By diffusion

Question 34

When is diffusion fastest?

Answer 34

When there's a bigger concentration difference

Question 35

What must dissolved substances pass through to enter cells?

Answer 35

Cell membrane

Question 36

What does net movement mean?

Answer 36

The total movement of a substance