Bio. G11

Which of the following foodstuffs produces the largest amount of Uric acid through the breaking down of its digestion products?

• Bean

• Rice

• Butter

What is the reason for the skin ability to keep the body temperature?

• a) Decreased blood capillaries amount, around the sweat glannds

• b) Accumulation of wastes on pores

• c) Lack of wastes from sweat

• d) Exit of water in liquid state, then it evaporates

Which of the following pass through the plasma membranes during gases exchange process?

• a) CO2.H2O

• b) O2.N2

• c) N2.CO2

• d) H2O.N2

Which of the following doesn’t pass to Bowman’s capsule?

• a) Vitamin C

• b) Glucose

• c) Insulin

Which of the following represents the amount of blood that is pumped by the heart and passes through the two kidneys during one hour?

• a) About 10 litres

• b) About 30 litres

• c) About 50 litres

• d) About 70 litres

Which of the following human body organs work(s) on balancing of the water percentage in the blood plasma?

• a) Two lungs

• Skin

• c) Two kidneys

• Liver

Which of the following statements disagrees with the main function of the kidneys in the higher vertebrates?

• a) Getting rid of excess water

• b) The constancy of water percentage in the blood

• c) Increasing the osmotic pressure in the blood

• d) Getting rid of excess of salts

Which of the following structures extend through the epidermal and dermal layers of the skin?

• A) Hair and blood vessels

• B) Hair and sweat glands

• C) Sweat glands and tactile corpuscles

the following table illustrates the rate of water absorption and the rate of transpiration for a plant during the morning

• 9 am

• 10 am

• 11am

• 12 pm

which of the following represents a similarity between the guttation and transpiration

• a) Products

• b) Time of occurrence

• c) Function

• d) Location