2008 年
生物 · 共 58 題 · 點擊選項即時核對答案
Questions 10 and 11 refer to the diagram below, which shows the arrangement of some neurones in the nervous system:
Which of the following is connected to the type of neurone which is the same as X?
Questions 13 and 14 refer to an experiment about osmosis. Three strips of the same size were cut from a fresh potato and immersed into sucrose solutions of different concentrations for four hours. The experiment was repeated using a potato that has already been stored for a certain period of time. The results obtained are shown in the table below:
| Concentration of sucrose solution (%) | Percentage change in mass of the strips: Fresh potato | Percentage change in mass of the strips: Stored potato |
|---|---|---|
| 0 | + 20.0 | + 25.0 |
| 5 | + 6.0 | + 10.0 |
| 10 | – 7.0 | – 2.0 |
The dependent variable in the experiment is measured as the percentage change in mass of potato strips because
Questions 13 and 14 refer to an experiment about osmosis. Three strips of the same size were cut from a fresh potato and immersed into sucrose solutions of different concentrations for four hours. The experiment was repeated using a potato that has already been stored for a certain period of time. The results obtained are shown in the table below:
| Concentration of sucrose solution (%) | Percentage change in mass of the strips: Fresh potato | Percentage change in mass of the strips: Stored potato |
|---|---|---|
| 0 | + 20.0 | + 25.0 |
| 5 | + 6.0 | + 10.0 |
| 10 | – 7.0 | – 2.0 |
Which of the following about the interpretation of the results is correct?
| Water potential of potato after storage | Explanation | |
|---|---|---|
| decreases | some starch is converted to sugars during storage | |
| decreases | some starch is used for growing during storage | |
| increases | water is lost through evaporation during storage | |
| increases | the permeability of cell membrane increases during storage |
Which of the following descriptions about the blood capillary is incorrect?
Questions 16 and 17 refer to the information shown below. 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?
Questions 16 and 17 refer to the information shown below. 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.
The heartbeat rate of the person is
The diagram below shows part of the human circulatory system. Key: → direction of blood flow
Which of the following correctly compares the oxygen content of the blood in the blood vessels when a person is performing vigorous exercise?
Questions 19 and 20 refer to the diagram below, which shows some of the muscles associated with a leg:
Which of the following combinations correctly identifies X and Y?
| X | Y | |
|---|---|---|
| ball and socket joint | tendon | |
| ball and socket joint | ligament | |
| hinge joint | tendon | |
| hinge joint | ligament |
Questions 19 and 20 refer to the diagram below, which shows some of the muscles associated with a leg:
Which of the following muscles are flexors?
Which of the following structures of the human skin can help prevent the invasion of pathogen?