1994 年
生物 · 共 59 題 · 點擊選項即時核對答案
Which of the following organisms are saprophytic?
Which of the following correctly describes the difference between the composition of blood in the hepatic portal vein and the hepatic vein of a man after fasting for 12 hours?
| Blood in the hepatic portal vein | Blood in the hepatic vein | |
|---|---|---|
| (1) | less urea | more urea |
| (2) | more glucose | less glucose |
| (3) | without bile | with bile |
Cindy can only receive blood of group B and group O in a blood transfusion. Her blood group is
Directions: Questions 14 and 15 refer to the diagram below which shows a section of a human heart:
What happens to the heart valves when the atria (auricles) and ventricles are all relaxed?
Directions: Questions 14 and 15 refer to the diagram below which shows a section of a human heart:
What will be the effect on a person if there is a hole in the septum that separates chambers X and Y?
Directions: Questions 16 and 17 refer to the diagram below which shows part of the circulatory system in a mammal:
The fluids X, Y and Z are
| X | Y | Z | |
|---|---|---|---|
| lymph | blood | tissue fluid | |
| blood | tissue fluid | lymph | |
| lymph | tissue fluid | blood | |
| tissue fluid | lymph | blood |
Directions: Questions 16 and 17 refer to the diagram below which shows part of the circulatory system in a mammal:
Which of the following comparisons between fluid X and fluid Z is correct?
| X | Z | |
|---|---|---|
| white blood cells absent | white blood cells present | |
| dull red | bright red | |
| less protein | more protein | |
| high oxygen content | low oxygen content |
The diagram below shows the nephron of a mammalian kidney:
Which of the following correctly describes the processes occurring in different regions of the nephron?
| Region 1 | Region 2 | Region 4 | |
|---|---|---|---|
| filtration | active transport | osmosis | |
| active transport | osmosis | filtration | |
| osmosis | active transport | filtration | |
| filtration | osmosis | active transport |
Which of the following correctly indicates the changes in the amount of water lost from a man when the weather becomes drier and hotter?
| Amount of water lost from the skin | Amount of water lost from the kidneys | |
|---|---|---|
| increases | remains constant | |
| increases | decreases | |
| decreases | increases | |
| remains constant | decreases |
Directions: Questions 21 and 22 refer to the diagram below which shows two woody shoots taken from the same plant. The shoots were ringed by removing a ring of the outer tissue at the lower part. Wax was applied to shoot X and shoot Y in the positions shown in the diagram. Both shoots were then placed in a red dye solution.
After one hour, the leaves of shoot X remained upright while those of shoot Y wilted. Which of the following may be deduced from this observation?