NEED TO KNOW BIOLOGY!!!! EMERGENCY

Question 1

Function of protein?

Answer 1

Growth and repair, enzymes.

Question 2

Function of carbohydrates?

Answer 2

Energy sources

Question 3

What is the small tube off the large intestine?

Answer 3

The appendix

Question 4

STUDY THE DIAGRAM OF THE DIGESTIVE SYSTEM!

Answer 4

Check in green book

Question 5

What is meant by digestion?

Answer 5

Breaks down food into smaller molecules that can be absorbed across the wall of the gut into the blood

Question 6

Describe mechanical digestion:

Answer 6

This involves grinding and churning the food

Question 7

Describe chemical digestion:

Answer 7

This involves the use of enzymes and other fluids such as bile to break down the food.

Question 8

MEMORIES THE DIAGRAM OF THE RESPIRATORY SYSTEM

Answer 8

CHECK IN GREEN BOOK

Question 9

Draw a diagram of an alveolus and explain how the exchange of gases takes place:

Answer 9

CHECK IN GREEN BOOK

Question 10

Explain aerobic respiration:

Answer 10

Requires oxygen and produces high levels of energy

Question 11

Explain anaerobic respiration:

Answer 11

Does not require oxygen and does not produce much energy.

Question 12

What is meant by oxygen debt?

Answer 12

Oxygen debt is the amount of oxygen needed to get rid of lactic acid.

Question 13

MEMORIES THE DIAGRAM OF THE HEART!!

Answer 13

CHECK IN GREEN BOOK

Question 14

What causes blood to flow around the body and back to the heart?

Answer 14

The pumping of the heart causes blood to flow through the circulatory system- pulmonary and systemic circuit.

Question 15

Outline the function of the red blood cell:

Answer 15

Contains haemoglobin, which carries oxygen (oxyhaemoglobin) and carbon dioxide)

Question 16

White blood cells?

Answer 16

Participate in immune and defence - related functions

Question 17

Platelets?

Answer 17

fragements of cells that are responsible for blood clotting

Question 18

Arterioles?

Answer 18

carry blood toward capillaries, regulate blood flow

Question 19

Venules?

Answer 19

Carry blood away from capillaries, participate in some exchange of materials.

Question 20

Plasma?

Answer 20

A liquid which contains water, hormones, proteins, minerals and wastes.

Question 21

How is blood pressure caused?

Answer 21

Is caused by the ventricles contracting

Question 22

Describe the term enzyme?

Answer 22

A chemical which will speed up or slow down a chemical reaction without partaking in this chemical reaction.

Question 23

MEMORIES CAPILLARY BED

Answer 23

GREEN BOOK

Question 24

Shivering?

Answer 24

If vasoconstriction is inadequate, the brain activates shivering. Each muscle tremor in shivering releases heat energy and helps warm the body up.

Question 25

Outline the role of antidiuretic hormone in regulating water balance.

Answer 25

If you have not drunk enough water, the pituitary gland releases ADH to make the kidneys reabsorb more water into the blood. If you have too much water in your blood, the release of ADH is clowed or even stopped.

Question 26

How is your breathing rate controlled?

Answer 26

Your breathing rate is controlled by inhalation and exhalation. Gas exchange across respiratory surfaces uses mechanisms which ensure that the respiratory surface receives a sufficient flow of air.