B2

Question 1

Name all of the components of an animal cell and a plant cell

Answer 1

Both: Nucleus, Cell Membrane, Cytoplasm

Plant Only: Cell Wall, Chloroplasts, Vacuole

Question 2

Which type of cell has no defined nucleus?

Answer 2

Bacteria cell

Question 3

Name the three types of tissue in the stomach

Answer 3

Muscular, glandular, epithelial

Question 4

Name some uses of enzymes

Answer 4

Alcohol, baby food, bread, cheese, chocolate, washing powder

Question 5

Aerobic respiration equation

Answer 5

Glucose + Oxygen = Carbon dioxide + Water

Question 6

Anaerobic respiration equation

Answer 6

Glucose = Lactic acid

Question 7

Define oxygen debt

Answer 7

Your body needs more oxygen than aerobic respiration can provide

Question 8

What is diffusion?

Answer 8

When particles move from an area of high concentration to an area of low concentration until they reach a dynamic equilibrium

Question 9

What is a tissue?

Answer 9

A group of specialised cells

Question 10

Define digestion

Answer 10

When large food particles are broken down, either physically or chemically, into smaller molecules that can be absorbed by the body

Question 11

What type of acid is present in the stomach?

Answer 11

Hydrochloric acid

Question 12

Which enzyme breaks starch down into sugars?

Answer 12

Amylase

Question 13

Which enzyme breaks protein down into amino acids?

Answer 13

Protease

Question 14

Which enzyme breaks fats (lipids) down into glycerol?

Answer 14

Lipase

Question 15

What sticks amino acids together to make polypeptide chains of protein?

Answer 15

Ribosomes

Question 16

What does optimum temperature mean?

Answer 16

The temperature at which the rate of reaction between enzymes and substrates is at its fastest

Question 17

What does denaturation mean?

Answer 17

When the it is too hot for enzymes to react with substrates because the enzymes change shape

Question 18

Where are bile salts produced and released?

Answer 18

Produced in the liver, released by the gall bladder

Question 19

What is the optimum temperature for biological washing powders?

Answer 19

30C

Question 20

What is mitosis?

Answer 20

When a somatic cell divides once to form two identical cells

Question 21

What is meiosis?

Answer 21

Where a sex cell divides twice and display variation due to “crossing over”

Question 22

What are the two types of plant tissue?

Answer 22

Xylem and Phloem

Question 23

Where in the body is lipase produced?

Answer 23

Pancreas

Question 24

What is the equation for the magnification of cells?

Answer 24

Size of image / Actual size