Blood

Question 1

What is blood?

What is the function of blood?

What is plasma

Answer 1

Blood is a fluid type of connective tissue.

It’s function is to transport oxygen, carbon dioxide, wastes, nutrients and hormones to and from body cells. Help regulate PH and temperature. Immune function

Plasma is the fluid portion of the blood in which the components are suspended.

Question 2

What does blood plasma consist of?

Answer 2

Water (91%)
Proteins (7%)
Mineral salts (0.9%)
Nutrients
Organic waste materials
Hormones
Enzymes
Gases

Question 3

What are the three major blood plasma proteins and their function?

Answer 3

All plasma proteins are made by liver cells (hepatocytes)

1. Albumin
   Carrier or substances like lipids and steroid hormones. Maintains osmotic pressure. It has charge so can draw water back in blood.
2. Globulins
   Function is to provide immunity - immunoglobulins (anti-body)
   Transports iron, lipids and vitamins
3. Fibrinogen
   Aka clotting factor 1.

Question 4

What are blood plasma nutrients and how are they passed through the body?

Answer 4

Blood plasma nutrients include:

Carbohydrates (sugars) mostly glucose

Amino acids - building blocks of amino acids

Fat/oils - HDL, LDL, VLDL

Vitamins

Question 5

The main mineral components of blood plasma nutrients are?

Answer 5

Cations - (positively charges ion) sodium, potassium, calcium, magnesium

Anions - (negatively charged ions) chlorides, bicarbonates, phosphates

Question 6

Give examples of organic waste blood plasma transports from body.

Answer 6

Urea: produced from the breakdown of proteins
Creatinine: produced by the breakdown of proteins
Uric acid: as above
Carbon dioxide: produced from respiratory metabolism