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Worksheetsexchange of materials in human
Total questions: 10
Worksheet time: 8mins
The diagram shows some parameter of blood, what do A and B standing for?
A: Blood pressure, B: Blood velocity
A: Blood velocity, B: Blood pressure
A: Blood oxygen content, B: Blood carbon dioxide content
A: Blood carbon dioxide content, B: Blood oxygen content
Which of the following will have a net movement from the blood to the cells in the lungs?
(1) carbon dioxide
(2) oxygen
(3) glucose
(1) only
(2) only
(1) and (3) only
(2) and (3) only
The function of this lining is to facilitate
the exchange of gas.
the removal of dust particles.
the reabsorption of useful materials.
the absorption of food substance.
What will be the effect on a person if there is a hole in the septum that separates the left and right ventricles?
The person may develop anaemia.
The person may have a heart attack easily.
The person’s blood may not be able to clot normally.
The person’s arterial blood may contain a lower level of oxygen than normal.
The diagram below shows part of the circulatory system in a mammal.
The fluids X, Y and Z are
X: tissue fluid Y: blood Z: lymph
X: lymph Y: tissue fluid Z: blood
X: blood Y: lymph Z: tissue fluid
X: lymph Y: blood Z: tissue fluid
Which of the following description(s) of human red blood cells is/are correct?
(1) They cannot synthesize enzymes or proteins for repair because of the absence of the nucleus.
(2) They will stop functioning one day as haemoglobin will be used up.
(3) The shape of them reduces the diffusion distance for materials exchange.
(1) only
(2) only
(1) and (3) only
(2) and (3) only
The photomicrograph below shows three blood vessels connecting the heart and the ovaries.
Which of the following comparisons of the content of the blood is correct?
The blood in vessel Y contains a higher glucose content than that in vessel X.
The blood in vessel Z contains a higher oxygen content than that in vessel X.
The blood in vessel Z contains a higher amino acids content than that in vessel Y.
The blood in vessel Y contains a lower carbon dioxide content than that in vessel X.
A person’s feet may become swollen after he has been sitting for many hours, such as on a long-distance flight.
This is because
the blood pressure in the veins of the legs become lower.
the blood flow in the arteries of the legs becomes slower.
tissue fluid is drained from the legs more slowly.
tissue fluid is formed in the legs more rapidly.
Diagram I shows a heart with certain parts
removed to reveal various valves. Diagram II shows the change in the ventricular volume of a person’s
heart within a short period of time.
At 0.2 second, which of the valves in Diagram I are opened?
valves I and II
valves I and IV
valves II and III
valves II and IV
The diagram below shows part of the human circulatory system.
Which of the following correctly compares the oxygen content of the blood in the blood vessels when a
person is performing vigorous exercise?
1 > 3 > 4
2 > 1 > 4
4 > 2 > 1
3 > 4 > 1
