Topic 1 - Cells

Question 1

What is the cytoplasm

Answer 1

This is where chemical reactions take place

Question 2

What is the cell membrane

Answer 2

Controls the transport of molecules in and out of the cell

Question 3

What is the chloroplast

Answer 3

Contains the green pigment chlorophyll to attract sunlight

Question 4

What is the cell wall

Answer 4

It gives the plan it’s structure

Question 5

What is the vacuole

Answer 5

This contains the cell sap

Question 6

What are stem cells

Answer 6

Unspecialised cells which can turn into any cell in your body used for repair

Question 7

What are the advantages of stem cells

Answer 7

No risk of rejection

It is ethical

Question 8

What is an advantage of embryonic stem cells

Answer 8

The cone from developing embryos

Question 9

What are the disadv ranges of embryonic stem cells

Answer 9

Anti rejection drugs will be required to use when taking

It is considered unethical as its stop the embryo from becoming life

Question 10

What is the nucleus ?

Answer 10

It controls the cell

Question 11

What are proteins

Answer 11

Composed of different amino acids linked together to form a chain

Question 12

What are enzymes

Answer 12

Biological catalysts which speed up the rate of chemical reactions and are made from proteins

Question 13

What is it called where the enzyme joined to the substrate

Answer 13

Active site

Question 14

What is the active site

Answer 14

The piece of the enzyme that joins to the substrate

Question 15

What is it called when the substrate joins the active site

Answer 15

Enzyme substrate complex

Question 16

What is a light microscope ?

Answer 16

Works by using lenses to magnify an image

Question 17

What is an electron microscope?

Answer 17

Works by using electrons to magnify an image

Question 18

How does bacteria reproduce?

Answer 18

Asexually by dividing and splitting into two

Question 19

How does a yeast cell produce?

Answer 19

Budding

Question 20

How does a virus reproduce?

Answer 20

Inside a living host cell

Question 21

What does DNA stand for

Answer 21

Deoxyribose nucleic acid

Question 22

What is the lock and key hypothesis?

Answer 22

The active site specifically matches the shape of the substrate molecule

Question 23

What effects enzyme activity?

Answer 23

Temperature and PH

Question 24

What is the optimum temperature

Answer 24

The temperature at which the enzyme is able to work best

Question 25

What happens when you boil the enzyme ?

Answer 25

It becomes denatured

Question 26

Draw a plant cell

Answer 26

``` Cell membrane Vacuole Chloroplast Cytoplasm Cell wall Nucleus ```

Question 27

Draw a bacterial cell

Answer 27

``` Dan strands Cell membrane Cell wall Capsule Flagellum ```

Question 28

Draw an algae cell

Answer 28

Eye spot Vacuole Nucleus Flagellum

Question 29

Draw a yeast cell

Answer 29

``` Good storage granule Vacuole Cytoplasm Cell membrane Cell wall ```

Question 30

Draw a virus

Answer 30

Envelope Spikes Protein coat

Question 31

Why does a virus not fit cell theory?

Answer 31

Because it does not divide to reproduce

Question 32

What do biological washing powders do?

Answer 32

Work by breaking down the large insoluble food stains on your clothes into smaller soluble molecules which can be washed out