Blood

Question 1

Composition of blood

Answer 1

Plasma, red, blood cells, white, blood cells, platelets

Question 2

Function of plasma

Answer 2

Mainly composed of water and acts as transport medium for cells and dissolved substances

Question 3

Function of White blood cells

Answer 3

Fight infection

Question 4

Function of Red blood cells

Answer 4

Carry oxygen

Question 5

function of platelets

Answer 5

Clotting

Question 6

what is another name for red blood cells?

Answer 6

Red blood corpuscles/erythrocytes

Question 7

what is another name for white blood cells?

Answer 7

Leucocytes

Question 8

dissolved substances in plasma

Answer 8

digestion products (i.e. glucose, amino acids, fatty acids, glycerol, minerals, vitamins)

Waste (i.e. carbon dioxide, urea)

Hormones (e.g. insulin)

Antibodies

Question 9

Antibodies

Answer 9

Proteins produced by white blood cell in response to an antigen

Question 10

antigen

Answer 10

Find molecules that stimulate the production of antibodies (e.g. bacteria, fungi, virus)

Question 11

Red blood cell characteristics

Answer 11

no nucleus and mitochondria

Formed in bone marrow of ribs and sternum

Biconcave discs

Contain haemoglobin

Flexible cell membranes

Broken down in liver/spleen

Live for four months

Question 12

biconcave discs

Answer 12

Gives a large surface area

Question 13

Haemoglobin

Answer 13

High affinity for oxygen

Question 14

White blood cell characteristics

Answer 14

have nucleus

Formed in bone marrow and matured in spleen

no definite shape

Protect against disease

Question 15

Types of white blood cells

Answer 15

Lymphocytes and monocytes

Question 16

Lymphocytes

Answer 16

Produce antibodies

Question 17

Monocytes

Answer 17

engulf micro organisms

Question 18

Platelets

Answer 18

cell fragments

made in bone marrow

no nucleus

Question 19

Leukaemia

Answer 19

A cancer in which white blood cells produce to rapidly and are immature

Question 20

Anaemia

Answer 20

Lack of haemoglobin/red blood cells