Biology 1 - Health

Question 1

Carbs release…

Fats release…

Protein is for…

Fibre is for…

Vitamins and minerals are for…

Answer 1

…energy

…warmth and energy.

…growth, cell repair and cell replacement.

…smooth bowel movement.

…keeping the skin, bones and blood healthy.

Question 2

What is your metabolic rate?

Answer 2

The speed at which the reactions in the body take place.

Question 3

Why is it important to eat carbs as part of a balanced diet?

Answer 3

They are a good source of energy.

Question 4

Name a health problem that eating too much can cause.

Answer 4

High blood pressure.

Question 5

Give three possible effects of eating too little.

Answer 5

(Any of these) slow growth in child, fatigue, poor resistance to infections or irregular periods in women

Question 6

Does exercising regularly increase or decrease your metabolic rate?

Answer 6

Increase

Question 7

Why is having a high blood cholesterol level a health risk?

Answer 7

High risk of heart disease.

Question 8

Define malnourished.

Answer 8

Having an unbalanced diet.

Question 9

Explain why taking regular exercise decreases your risk of becoming obese.

Answer 9

Increases metabolic rate, decreases stored fat. Builds muscle. More energy used, less fat stored, less likely to become obese.

Question 10

What is a pathogen?

Answer 10

A microbe that enters the body and causes diseases.

Question 11

Explain how viruses replicate within your body.

Answer 11

By invading your cells, uses cell machinery to produce copies, then causes cell to break open, releasing new virus.

Question 12

What is an antigen?

Answer 12

Unique molecules on the surface of cells/ pathogens/ microbes.

Question 13

What are antibiotics designed to do?

Answer 13

To kill pathogens without harming body cells.

Question 14

Why are cultures of microbes grown at temperatures no higher than 25C in school labs.

Answer 14

To prevent growth of harmful pathogens.

Question 15

What is an epidemic?

Answer 15

A break out of disease.

Question 16

What is a pandemic?

Answer 16

When a disease spreads across the world.

Question 17

What are the five sense organs in the human body?

Answer 17

Eyes, ears, tongue, nose and skin

Question 18

In what form is information transmitted along nerve cells?

Answer 18

Electrical impulses.

Question 19

What are the two different types of effector in the human body?

Answer 19

Muscles and glands.

Question 20

What name is given to the connection between to nerve cells?

Answer 20

A synapse.

Question 21

What are the hormones secreted by?

Answer 21

Glands.

Question 22

Give one difference between a nervous response and a hormonal response.

Answer 22

Nerves carry messages faster than hormones OR nerves act for a short time but hormones act for a long time.

Question 23

Describe what happens at Day 1 in the menstrual cycle.

Answer 23

Day 1 is when the bleeding starts.

Question 24

What is phototropism?

Answer 24

The growth of a plant in response to light.

Question 25

Name the plant hormone that controls phototropism.

Answer 25

Auxin.

Question 26

List four things need to be kept constant within the body.

Answer 26

Water, ions, temperature, blood sugar level.

Question 27

Why is it important that human body temperature is kept at about 37C?

Answer 27

This is the optimal temperature for most enzymes in the body.

Question 28

What is a drug?

Answer 28

A substance that has a mental effect when introduced into the body.

Question 29

Why might a patient be prescribed statin?

Answer 29

To lower their risk of heart or circulatory disease.