Topic 1 cells

Question 0

What is protease

Answer 0

This enzyme breaks down protein into amino acids

Question 1

What is carbohydrase

Answer 1

This enzyme breaks down carbohydrates molecules into glucose

Question 2

What are stem cells?

Answer 2

Unspecialised cells that can change into any cells for repair

Question 3

What are proteins

Answer 3

composed of different amino acids linked together to form a chain

Question 4

What is the active site

Answer 4

This is the piece of the enzyme that joins to whatever the enzyme is working on

Question 5

What are enzymes

Answer 5

They are Proteins , which catalyse the rate of chemical reactions

Question 6

What is the role or the nucleus

Answer 6

Controls the cell, and contains genes and chromosomes

Question 7

What is the Cytoplasm

Answer 7

Where the chemical reactions take place

Question 8

How does yeast reproduce

Answer 8

Asexually by budding

Question 9

State the function of the chloroplast

Answer 9

To attract sunlight

Question 10

What does the cell membrane do

Answer 10

Controls the movement of substances in and out of a well

Question 11

What happens to enzymes at a too high temperature

Answer 11

They are denatured

Question 12

Why are some people against embryonic stem cells

Answer 12

Because they think this is stopping that embryo from becoming life and it is unethical

Question 13

What is meant by the term product

Answer 13

The result of a reaction

Question 14

Name the type of enzyme that digests stains containing fats

Answer 14

Lipases

Question 15

Why is meiosis important in the production of gametes

Answer 15

Produces half the amount of chromosomes

Gives rise to variation

Question 16

How does a bacterial cell reproduce?

Answer 16

By dividing into two

Question 17

Which is larger? Bacterial or yeast cell

Answer 17

Yeast is larger

Question 18

What is cell theory

Answer 18

The cell is the basic unit of life, it grew from a parent cells which had heritable characteristics

Question 19

What are enzymes

Answer 19

Proteins which catalyse chemical reactions

Question 20

What are the names of the four bases found in DNA

Answer 20

ATGC

Question 21

What does DNA stand for

Answer 21

Deoxyribose nucleic acid

Question 22

What are the four bases names

Answer 22

Adenine
Cytosine
Guanine
Thymine

Question 23

What is the triplet code

Answer 23

A sequence of three bases along the DNA chain which codes for an amino acid

Question 24

Who are the sciences that discovered DNA

Answer 24

Watson and Crick

Question 25

What is yeast

Answer 25

A variety of fungus

Question 26

What is cell theory

Answer 26

All organisms are made of cells

Question 27

What are amino acids

Answer 27

Building blocks of proteins

Question 28

What are enzymes

Answer 28

Biologic catalysts

Question 29

What is a lipase

Answer 29

Enzymes that break fat molecules into fatty acid and glycerol

Question 30

What are carbohydras

Answer 30

Breaks down carbohydrates into glucose

Question 31

What is a protease

Answer 31

Breaks down protein into amino acids

Question 32

What is mitosis

Answer 32

Cell division using growth and asexual reproduction

Question 33

What is meiosis

Answer 33

Cell division used in making gametes

Question 34

What are stem cells

Answer 34

Unspecialised cells that change into any cells in your body, used for growth

Question 35

What are light microscopes

Answer 35

Use lenses to magnify an image

Question 36

What are the units of a protein molecule

Answer 36

Amino acids

Question 37

Describe the lock and key theory

Answer 37

The active site specifically matches the substrate molecule

Question 38

What group of chemicals are related by A T G C

Answer 38

Bases