Y8 Biology PPE Revision

Question 1

How do you test for starch?

Answer 1

Iodine, turns substance black / blue

Question 2

How do you test for Protein?

Answer 2

Buiret, turns substance Purple

Question 3

How do you test for glucose?

Answer 3

Benedicts solution, turns substance Orange

Question 4

Name 3 diseases and what nutrient they are lacking.

Answer 4

Blindness, Scurvy and Rickets

Question 5

What are some adaptions of the Villi in the small intestine

Answer 5

Thin walls, Folds that give a larger surface area and a network of capillaries

Question 6

Enzymes are ____ and _____

Answer 6

proteins, biological catalysts

Question 7

What effects do Carbohydrates have on the body?

Answer 7

Provides energy

Question 8

What effect does Protein have on the body?

Answer 8

Growth and repair

Question 9

What effect does fat have on the body?

Answer 9

To provide energy, Stores energy in the body

Question 10

What effect do minerals have on the body?

Answer 10

Maintain health

Question 11

What effect do Vitamins have on the body?

Answer 11

Maintain health

Question 12

What effect does Fibre have on the body?

Answer 12

Helps food move through the body

Question 13

What effect does water have on the body?

Answer 13

Hydrates body and cells

Question 14

What is a drug?

Answer 14

A chemical substance that affects the nerve system

Question 15

What effect do Painkillers have on a person?

Answer 15

Reduces pain by blocking messages in the nerve system

Question 16

What effect doses Hallucinogens have on the body ?

Answer 16

Makes you hear, smell, see and taste things that are not really there

Question 17

What effect does injecting drugs have on the body?

Answer 17

infected blood, Including HIV

Question 18

What effect does a stimulant drug have on the body?

Answer 18

speeds up messages in the nerve system

Question 19

How is Tar harmful to the body?

Answer 19

May give you lung cancer

Question 20

How is Nicotine harmful to the body?

Answer 20

Gives you addiction to the drug.

Question 21

How is Carbon Monoxide harmful to the body?

Answer 21

Reduces the amount of red blood cells your body can carry

Question 22

How is smoke harmful to the body?

Answer 22

Gives chest infections and more coughing

Question 23

What are the long term effects of drinking alcohol?

Answer 23

Liver Cancer and Brain damage.

Question 24

What are the short term effects of drinking alcohol?

Answer 24

Dizziness and Hangovers.

Question 25

Describe the order air travels to get to the alveoli:

Answer 25

Mouth/Nose, Trachea, Bronchi, Bronchiolis,Aveoli

Question 26

What are the 3 adaptions of the alveoli?

Answer 26

Big Surface area, Thin walls, a lot of gas can be exchanged

Question 27

which gas moves from the alveoli into the blood?

Answer 27

Oxygen

Question 28

Which gas moves from the blood into the Alveoli?

Answer 28

Oxygen

Question 29

What is Respiration and where does it happen?

Answer 29

Process of releasing energy from sugar. Taken place in the mitochondrion of cells

Question 30

Write down the word equation for: Aerobic Respiration?

Answer 30

Glucose + Oxygen = Water + Carbon Dioxide

Question 31

What is the word equation for: Anaerobic Respiration

Answer 31

Glucose = lactic acid.

Question 32

What happens to our breathing rate when we exercise?

Answer 32

It increases