1.1 Composition Of Blood

Question 1

What are leukocytes?

Answer 1

White blood cells

Consist of neutrophils, lymphocytes and monocytes

Question 2

What are erythrocytes?

Answer 2

Red blood cells

Question 3

Function of plasma

Answer 3

Transport dissolved substances
Nutrients needed for energy, make proteins, for essential processes
Blood protein needed to maintain fluid levels and involved in clotting
Proteins are made by the immune system
Proteins that carry fats/cholesterol
A poisonous waste gas

Example- sodium- Helps maintain correct concentration of the blood.

Question 4

Function of erythrocytes

Answer 4

Carry oxygen and some carbon dioxide

Question 5

What is the yellow liquid known as?

Answer 5

Plasma-makes up 55% of the blood

Question 6

What substances are in plasma?

Answer 6

Mostly water but has substances dissolved in it including proteins, glucose, amino acid’s, various salts, carbon dioxide and other poisonous wastes such as urea.

Question 7

What are platelets?

Answer 7

Tiny fragments of special cells known as platelets

Question 8

Function of leukocytes?

Answer 8

Helps destroy bacteria
B-Type cells produce antibodies
T-type cells destroy viruses and cancer cells
Remove dead cells and bacteria

Question 9

Function of platelets

Answer 9

Triggers blood clotting

Question 10

What is the machine called a small sample of blood is spun very fast in?

Answer 10

A centrifuge