2001 年
生物 · 共 59 題 · 點擊選項即時核對答案
Which of the following animals lays eggs with a hard shell ?
A student examines the epidermis of a leaf under the microscope. In order to observe more cells within the field of view, he should
Which of the following are the functions of ribs ?
Which of the following statements about enzymes is correct ?
Which of the following activities cannot be performed by the human red blood cells ?
During a 100 m race, the lactic acid concentration in the blood of an athlete increases rapidly. Which of the following word equations represents the process that leads to the formation of lactic acid ?
A student mixed a 0.1% amylase solution with a 1% starch solution. He performed a number of food tests on the mixture immediately after mixing and obtained the following results :
| Iodine test | Biuret test | Benedict’s test |
|---|---|---|
| + | + | − |
Key : + positive result; − negative result If he repeated the food tests on the mixture 10 minutes later, what would be the possible results ?
| Iodine test | Biuret test | Benedict’s test | |
|---|---|---|---|
| + | + | + | |
| − | + | − | |
| − | − | + | |
| + | − | − |
Which of the following is an example of mutualism ?
Questions 9 and 10 refer to the table below, which shows the composition of 150 g each of four kinds of food :
| Food | Protein (g) | Carbohydrate (g) | Fat (g) | Calcium (mg) | Iron (mg) | Vitamin A (mg) | Vitamin C (mg) |
|---|---|---|---|---|---|---|---|
| W | 40 | 30 | 30 | 324 | 18 | 0.03 | 4.3 |
| X | 50 | 10 | 40 | 974 | 6 | 0.01 | 1.9 |
| Y | 30 | 10 | 60 | 226 | 3 | 0.09 | 1.5 |
| Z | 20 | 60 | 20 | 181 | 1 | 0.16 | 0.2 |
Which food has the highest energy value ?
Questions 9 and 10 refer to the table below, which shows the composition of 150 g each of four kinds of food :
| Food | Protein (g) | Carbohydrate (g) | Fat (g) | Calcium (mg) | Iron (mg) | Vitamin A (mg) | Vitamin C (mg) |
|---|---|---|---|---|---|---|---|
| W | 40 | 30 | 30 | 324 | 18 | 0.03 | 4.3 |
| X | 50 | 10 | 40 | 974 | 6 | 0.01 | 1.9 |
| Y | 30 | 10 | 60 | 226 | 3 | 0.09 | 1.5 |
| Z | 20 | 60 | 20 | 181 | 1 | 0.16 | 0.2 |
The haemoglobin content of a person’s blood is found to be lower than normal. Which food would be most effective in helping the person to improve this condition ?