CELLS

Question 1

Name the 3 parts of an animal cell

Answer 1

1. Cytoplasm
2. Nucleus
3. Cell membrane

Question 2

What happens in the cytoplasm?

Answer 2

Most chemical processes take place here and are controlled by enzymes

Question 3

What happens in the nucleus?

Answer 3

It controls what happens in the cell and carries genetic information

Question 4

What does the cell membrane do?

Answer 4

It controls the movement of substances into and out of the cell

Question 5

What are the 7 parts of a microscope?

Answer 5

1. Stage
2. Eyepiece lens
3. Objective lens
4. Coarse focus
5. Lamp
6. Fine focus
7. Clips

Question 6

Who was Robert Hooke?

Answer 6

An astronomer, physicist and naturalist who built and used the first microscope - he gave the name to the cell

Question 7

How should you handle a microscope? - 3

Answer 7

1. Carry it with one hand underneath and
2. One hand on the arm
3. Never touch the glass of the lenses

Question 8

Name 3 common mistakes with a microscope

Answer 8

1. You should have a single layer of cells not folded over
2. Try to ensure no air is trapped between the specimen and cover slip
3. Ensure the slide is in focus

Question 9

Name the 6 parts of a plant cell

Answer 9

1. Cell membrane
2. Cytoplasm
3. Nucleus
4. Chloroplast
5. Vacuole
6. Cell wall

Question 10

What does the chloroplast do?

Answer 10

It contains the green pigment that traps light energy for making food

Question 11

What does the cellulose/cell wall do?

Answer 11

It gives the cell shape and support

Question 12

What does the vacuole do? - 2

Answer 12

It contains water and sugars which are called cell sap. This gives the cell support,making it firm.

Question 13

What solution do you drop onto your cells before putting under a microscope?

Answer 13

Iodine solution

Question 14

Why does an onion have no chloroplast?

Answer 14

Because it grows underground and does not need to absorb light to make food

Question 15

Name 3 things animal and plant cells have in common

Answer 15

1. Have a nucleus
2. Have a cell membrane
3. Have cytoplasm

Question 16

Name 3 differences between animal and plant cells

Answer 16

1. Animal cells do not have a cell wall
2. Animal cells do not have chloroplasts
3. Animal cells do not have a large vacuole

Question 17

What is cytoplasm like?

Answer 17

Jelly like substance which can flow

Question 18

What do chloroplasts contain?

Answer 18

Chlorophyll

Question 19

What does a plant cell wall do?

Answer 19

It strengthens the cell and gives it structural support