Physiology

Given that a person weighs 60kg and their haematocrit is 40%, their total blood volume is:

a) 6L
b) 5L
c) 4L
d) 3L
e) cannot be calculated with the given information

Which decreases Na+ -K+ -ATPase pump activity?

a) thyroid hormones
b) dopamine
c) G-actin
d) intracellular sodium
e) insulin

Na+ -K+ -ATPase is an example of a/an:

a) symport
b) uniport
c) biport
d) antiport
e) airport

Regarding cellular components:

a) peroxisomes are larger than lysosomes

b) pH of lysosomes is higher than the rest of the cytoplasm

c) microfilaments are hollow

d) myosin 1 molecules are characteristically found in muscle cells

e) microfilaments are made up of actin

Enzymes are used in the manufacture of many specific products in industries. Tissue plasminogen enzyme is utilized to:

1. remove oily stain from clothes
2. dissolve blood clots in heart attack patients 
3. stop bleeding during surgery 
4. tenderise meat

Identify the function of lipase in the process of digestion.

1. Breaking down roughage
2. Breaking down emulsified fats
3. Secreting intestinal fluids
4. Digesting proteins

Which of the following blood groups is a 'Universal Donor'?

1. O
2. A
3. B
4. AB

Which of these is true of the endocrine system?

1. secretes hormones that are transported to target cells by blood
2. causes changes in metabolic activities
3. effects are prolonged
4. All of above are true.

Savi is suffering from Kwashiorkor. Which of the following deficiencies causes it?

A)Deficiency of iron

B) Deficiency of protein

C) Deficiency of calcium

D) Deficiency of vitamin A

Which blood type is a universal donor?

A) AB^–

B) AB⁺

C) O^–

D) O+