2003 年
生物 · 共 60 題 · 點擊選項即時核對答案
A student examined four plants, P, Q, R and S, in the field. He constructed the dichotomous key below to identify these plants :
| 1a | with leaves ........ 2 |
| 1b | without leaves ........ P |
| 2a | with cones ........ Q |
| 2b | without cones ........ 3 |
| 3a | with pollens ........ R |
| 3b | without pollens ........ S |
One of them is a potato plant. Which one is it ?
Which of the following is an adaptation of the tapeworm for living in the ileum of humans ?
Which of the following correctly compares an epidermal cell and a mesophyll cell of a leaf ?
| Epidermal cell | Mesophyll cell | |
|---|---|---|
| without nucleus | with nucleus | |
| without cell wall | with cell wall | |
| without chloroplasts | with chloroplasts | |
| without large vacuole | with large vacuole |
Questions 4 and 5 refer to the diagram below, which shows the human digestive system :
Protein digestion occurs mainly in
Questions 4 and 5 refer to the diagram below, which shows the human digestive system :
Most mineral salts are absorbed in
When a drop of liquid food was added to a piece of filter paper, a translucent spot appeared and remained after drying. What further step should be carried out in order to determine whether the food contains fat ?
Questions 7 and 8 refer to the diagram below, which shows a set-up used to find the rate of photosynthesis of a green plant. The sodium hydrogencarbonate solution helps to maintain a constant level of carbon dioxide inside the syringe. During the study, the position of the plunger remained unchanged.
The results of the study are : Initial pipette reading = 0.20 mL Pipette reading after 30 minutes = 0.45 mL
Based on the results, what is the rate of photosynthesis of this plant ?
Questions 7 and 8 refer to the diagram below, which shows a set-up used to find the rate of photosynthesis of a green plant. The sodium hydrogencarbonate solution helps to maintain a constant level of carbon dioxide inside the syringe. During the study, the position of the plunger remained unchanged.
The results of the study are : Initial pipette reading = 0.20 mL Pipette reading after 30 minutes = 0.45 mL
The rate obtained in this study is lower than the actual rate of photosynthesis of the plant. This is because
Questions 9 and 10 refer to the graph below, which shows the change in lactic acid concentration in the blood of a trained athlete and an untrained person when they performed the same amount of vigorous exercise :
The athlete is
Questions 9 and 10 refer to the graph below, which shows the change in lactic acid concentration in the blood of a trained athlete and an untrained person when they performed the same amount of vigorous exercise :
Which of the following is the correct sketch of the change in breathing rate of the untrained person ?
