Circulation

Question 1

Red blood cells

Answer 1

Haemoglobin to carry oxygen
No nucleus
Disc shaped
Made in the bone marrow

Question 2

White blood cells

Answer 2

Fight infection
Produce anti bodies
Nucleus present
No definite shape

Question 3

Platelets

Answer 3

Blood clotting
No nucleus
Fragments of cells
Less platelets cells the blood cells but more than white

Question 4

Functions of food

Answer 4

Transport-red blood cells and plasma
Defence against disease-White cells
Clotting -platelets

Question 5

Transport in blood

Answer 5

Heat,oxygen,carbon dioxide….

Question 6

Three types of blood vessels

Answer 6

Arteries:carries blood away from the heart
Capillaries:connect arteries and veins
Veins :carry blood back to the heart

Question 7

Arteries

Answer 7

Thick wall,narrow lumen

Carries blood away from the heart

Question 8

Veins

Answer 8

Thin wall,wide lumen

Carry blood back to the heart

Question 9

Capillaries

Answer 9

Connect arteries and veins

Question 10

Cardiac muscle

Answer 10

It doesn’t fatigue or tire

Question 11

Four chambers in the heart

Answer 11

Right and left atria, and the right and left ventricle

Question 12

Left ventricle has a thicker wall because

Answer 12

Because the heart wall is here

Question 13

Circulatory system

Answer 13

Heart,blood vessels and blood

Question 14

Normal body temperature

Answer 14

The average body temperature is 37 *C

Question 15

Resting pulse rate

Answer 15

Resting pulse rate is your average heart rate which is 60-100 beats per minute

Question 16

Heart disease is prevented from

Answer 16

Eating healthy and being physically fit

Question 17

Exercise is good because

Answer 17

• it makes ur muscles stronger
• strengthens our hearts
• strengthens our lungs
• reduces weight

Question 18

The effect of exercise on the heart rate is

Answer 18

Exercise makes your heart pump faster because you would be low on oxygen and parts of your body would be tired