Test#1: term 2: Blood components, sec 3

Question 1

The components of blood are:

Answer 1

plasma

red blood cells

white blood cells

platelets

Question 2

Plasma:

Answer 2

• liquid component, made up mostly of water.

Question 3

Red blood cells:

Answer 3

• Have a biconcave shape & flexible to squeeze into small blood vessels like capillaries or turn sharp corners.
• Produced in bone marrow
• Contain hemoglobin (protein helps transport oxygen & carbon dioxide).

Question 4

Platelets:

Answer 4

healing an injury

Question 5

White blood cells:

Answer 5

• Only blood cell with a nucleus.
• Fewer white blood cells than red blood cells but numbers increase when there’s infection.
• Protect body; neutralizes bacterias & viruses. Others get rid of dead or damaged cells.

(fighting diseases)