Science revision hl AP3

Question 1

What are the 4 functions of the skeleton?

Answer 1

To :
protect
Support
Move
Make blood

Question 2

What part of the skeleton makes blood cells?

Answer 2

Bone marrow

Question 3

Name at least 2 adaptations of a red blood cell

Answer 3

No nucleus
Large surface area
Haemoglobin
Very small and flexible to go through capillaries

Question 4

What is the function of chloroplasts?

Answer 4

To absorb light for photosynthesis

Question 5

What is diffusion?

Answer 5

when particles move from a place of high to low concentration

Question 6

Which of these in cigarettes and tobacco smoke is addictive?
A. Tar
B. Nicotine
C. Carbon monoxide gas

Answer 6

B. Nicotine

Question 7

what gas diffuses through the alveoli into the blood?

Answer 7

oxygen

Question 8

How do you test for starch?

Answer 8

When placed in iodine, it turns it black

Question 9

What is the test for glucose

Answer 9

Benedict solution turns orange-red

Question 10

What is the test for protein?

Answer 10

Biuret’s turns lilac

Question 11

What enzyme breaks down protein?

Answer 11

Protease

Question 12

What enzyme breaks down Starch?

Answer 12

Amylase / carbohydrase

Question 13

What enzyme breaks down Fats?

Answer 13

Lipase

Question 14

Is eye colour an inherited variation or environmental

Answer 14

Inherited