Cells

Question 1

What is the function of a nucleus?

Answer 1

Contains genetic material.

Controls activities of the cell.

Question 2

What is the function of cytoplasm?

Answer 2

Most chemical processes take place in here. They are controlled by enzymes.

Question 3

What is the function of a cell membrane?

Answer 3

Controls movement of substances in and out of the cell.

Question 4

What is the function of mitochondria?

Answer 4

Release energy by respiration

Question 5

What is the function of ribosomes?

Answer 5

Protein synthesis happens in the ribosomes.

Question 6

What is the function of a cell wall?

Answer 6

Strengthen the cell

Question 7

What is the function of chloroplasts?

Answer 7

Contain chlorophyll, which absorbs light for phototsynthesis

Question 8

What is the function of a vacuole?

Answer 8

Filled with cell sap to keep the cell turgid.

Question 9

Which organells are only found in plant cells?

Answer 9

Cell wall
Chloroplasts
Vacuole

Question 10

What is a eukaryotic cell?

Answer 10

Cells that have a cell membrane, cytoplasm and genetic material in a NUCLEUS.

Question 11

What is a prokaryotic cell?

Answer 11

Cells that have a cell membrane, cell wall (not made of cellulose) and genetic material loose in the cytoplasm.

Question 12

What is a tissue?

Answer 12

A group of similar cells working together to perform a particular function.

Question 13

What is an organ?

Answer 13

A group of different tissues working together to perform a particular function.

Question 14

What is an organ system?

Answer 14

A group of different organs working together to perform a particular function.

Question 15

What is an organism?

Answer 15

A group of different organ systems.

Question 16

What is the function of the waxy cuticle in a leaf?

Answer 16

To prevent water loss through evaporation.

Question 17

What is the function of the upper epidermis in a leaf?

Answer 17

It’s thin and transparent to allow more light through to the chloroplasts.

Question 18

What is the function of the palisade mesophyll in a leaf?

Answer 18

Contains lots of chloroplasts to absorb light for photosynthesis.

Question 19

What is the function of the spongy mesophyll in a leaf?

Answer 19

Contains lots of air spaces to allow gases to diffuse through the leaf and to increase surface area.

Question 20

What is the function of the stomata in a leaf?

Answer 20

They are holes in the leaf, to allow carbon dioxide to diffuse in and oxygen to diffuse out.

Question 21

What is the function of the guard cells in a leaf?

Answer 21

To open and close the holes to prevent water loss.

Question 22

magnification =

Answer 22

size of image
___________
size of object

Question 23

What’s the function of the skeletal system?

Answer 23

• support

- protect vital organs

Question 24

What’s the function of the circulatory system?

Answer 24

Responsible for flow of blood, nutrients, oxygen and hormones.

Question 25

What’s the function of the respiratory system?

Answer 25

Takes in oxygen and exhales carbon dioxide.

Question 26

What’s the function of the endocrine system?

Answer 26

Produces hormones that regulate metabolism, growth, development and tissue growth (etc.).

Question 27

What’s the function of the muscular system?

Answer 27

• supports movement
• controls actions (walking, talking, sitting, eating, etc.)
• maintains posture
• circulates blood

Question 28

What’s the function of the digestive system?

Answer 28

To digest food.

Question 29

What’s the function of the reproductive system?

Answer 29

To reproduce

Question 30

What’s the function of the nervous system?

Answer 30

• transmits signals to the brain
• regulates blood pressure
• regulates breathing rate