生物 2000 年 DSE、CE 選擇題

1.

Questions 1 and 2 refer to the photographs below, which show four different plants :

Which plant can only survive in a moist and shady environment ?

2.

Questions 1 and 2 refer to the photographs below, which show four different plants :

Which plants are capable of producing seeds ?

3.

The table below lists some features of three animals :

	P	Q	R
Vertebral column	×	✓	✓
Scales	×	✓	×
Hair	×	×	✓

Key : ✓ = present × = absent The three animals could be

P	Q	R
jellyfish	snake	rabbit
jellyfish	starfish	chicken
goldfish	rabbit	bat
goldfish	turtle	horse

4.

Which of the following reactions occur(s) in the skeletal muscle when a person is performing vigorous exercise ?

(1)glucose → lactic acid

(2)glucose → lactic acid + carbon dioxide

(3)glucose + oxygen → carbon dioxide + water

5.

What is the significance of anaerobic respiration to yeast ?

6.

Questions 6 to 8 refer to the graph below, which shows the digestion of three types of food substances, X, Y and Z, along the alimentary canal :

Which food substance(s) is/are digested in the stomach ?

7.

Questions 6 to 8 refer to the graph below, which shows the digestion of three types of food substances, X, Y and Z, along the alimentary canal :

What are food substances X, Y and Z ?

X	Y	Z
starch	protein	fat
starch	fat	protein
protein	fat	starch
protein	starch	fat

8.

Questions 6 to 8 refer to the graph below, which shows the digestion of three types of food substances, X, Y and Z, along the alimentary canal :

In the alimentary canal, most water is absorbed in the

9.

Questions 9 and 10 refer to the graph below, which shows the rate of oxygen uptake of a plant in 24 hours :

Which of the following correctly describes the plant at 1200 hour ?

10.

Questions 9 and 10 refer to the graph below, which shows the rate of oxygen uptake of a plant in 24 hours :

Based on the graph, we may conclude that at 1800 hour the rate of photosynthesis was 3 units. What assumption has to be made in order to arrive at this conclusion ?