Question 1

What is the function of a red blood cell?

Accepted Answer

Carry oxygen

Answer

Clot blood

Answer

Fight disease

Answer

Transport urea

Question 2

Which of these describes the shape of a red blood cell

Accepted Answer

Biconcave disc

Answer

Bilateral disc

Answer

Flat

Answer

Sphere

Question 3

Which of these is not an adaptation of a red blood cell?

Accepted Answer

Produce antibodies

Answer

Lots of haemoglobin

Answer

Large surface area:volume ration

Answer

No nucleus

Question 4

What is the function of a white blood cell?

Accepted Answer

Fight disease

Answer

Carry oxygen

Answer

Clot blood

Answer

Transport urea

Question 5

What is the function of platelets?

Accepted Answer

Help to clot the blood

Answer

Carry oxygen

Answer

Fight disease

Answer

Transport urea

Question 6

Which of these is not true about blood plasma?

Accepted Answer

It is a red liquid

Answer

It carries urea

Answer

It carries carbon dioxide

Answer

It carries the products of digestion

Question 7

What type of blood vessel carries blood away from the heart?

Accepted Answer

Artery

Answer

Vein

Answer

Capillary

Question 8

What type of blood vessel carries blood towards the heart?

Accepted Answer

Vein

Answer

Capillary

Answer

Artery

Question 9

In which type of blood vessel can gas exchange occur?

Accepted Answer

Capillary

Answer

Vein

Answer

Artery

Question 10

Which of these statements is not true about arteries?

Accepted Answer

They have valves

Answer

They have thick muscular walls

Answer

The blood is under high pressure

Answer

They stretch as blood is forced through them

Question 11

Which of these statements is not true about veins?

Accepted Answer

Blood is under high pressure

Answer

Blood is usually deoxygenated

Answer

They have thinner walls than arteries

Answer

They have valves

Question 12

Which of these is not true about capillaries?

Accepted Answer

Oxygen cannot pass across the walls of the capillary

Answer

Capillaries are very narrow

Answer

Carbon dioxide passes across the wall of the capillary

Answer

The walls of capillaries are one cell thick

Question 13

Which of these statements is correct about a double circulatory system?

Accepted Answer

One set of blood vessels takes blood from the heart to the lungs and back, while another set of blood vessels takes blood from the heart to the body and back.

Answer

The blood is at the same pressure in all parts of the double circulatory system.

Answer

There are two hearts in a double circulatory system  the system

Answer

It is not an efficient way of circulating blood

Question 14

What molecule does haemoglobin form when it combines with oxygen?

Accepted Answer

Oxyhaemoglobin

Answer

Haemoxyglobin

Answer

Haemoglobin-oxygen

Answer

Oxidised haemoglobin

Question 15

Which of these is not a scientific name for a type white blood cell?

Accepted Answer

Erythrocyte

Answer

Phagocyte

Answer

Lymphocyte

Question 16

What type of protein do lymphocytes produce?

Accepted Answer

Antibody

Answer

Enzyme

Answer

Hormone

Answer

Carrier protein

Question 17

When platelets arrive at the site of a wound, they release clotting factoirs which control which process?

Accepted Answer

Conversion of fibrinogen to fibrin

Answer

Conversion of red blood cells to platelets.

Answer

Conversion of myosin to actin

Answer

Conversion of fibrin to fibrinogen

Question 18

What proportion of blood is red blood cells?

Accepted Answer

45%

Answer

5%

Answer

55%

Answer

1%

Question 19

How many red blood cells are there in 1 cubic millimetre of blood?

Accepted Answer

5 000 000

Answer

5000

Answer

50 000

Answer

500 000

Question 20

What is the largest cell in the blood?

Accepted Answer

White blood cell

Answer

Red blood cell

Answer

Platelet

Answer

Haemoglobin

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