生物 2009 年 DSE、CE 選擇題（第 4 頁）

31.

The diagram below shows a section of a human eye:

What is the function of structure X?

32.

Questions 32 and 33 refer to the following description of gastric bypass surgery. Gastric bypass surgery helps severely obese people to lose weight. The surgery involves making a small pouch at the top of the stomach. A bypass is added to direct ingested food to the ileum (the latter part of the small intestine) without passing through the stomach and duodenum. The diagram below shows the passage of food after the surgery:

Which of the following would not occur after the surgery?

33.

Questions 32 and 33 refer to the following description of gastric bypass surgery. Gastric bypass surgery helps severely obese people to lose weight. The surgery involves making a small pouch at the top of the stomach. A bypass is added to direct ingested food to the ileum (the latter part of the small intestine) without passing through the stomach and duodenum. The diagram below shows the passage of food after the surgery:

The surgery helps obese people to lose weight by

34.

Which of the following correctly describes the function of amniotic fluid during pregnancy?

35.

Questions 35 and 36 refer to the photomicrograph below, which shows an event taking place in the oviduct:

The following graph shows the change in the thickness of the uterine lining of a woman from 8ᵗʰ June to 6ᵗʰ July:

The event shown in the photomicrograph is most likely to take place on

36.

Questions 35 and 36 refer to the photomicrograph below, which shows an event taking place in the oviduct:

Which of the following comparisons between cells P and Q is correct?

37.

The graph below shows the rate of carbon dioxide uptake of two plants in different light intensities:

Which of the following is a correct interpretation of the graph?

38.

The diagram below shows a capillary network connecting two blood vessels, P and Q, in the lungs. The lung cells are not shown in the diagram.

Judging from the direction of fluid movement shown in the above diagram, which of the following comparisons about the composition of the blood in blood vessels P and Q is correct?

	Blood vessel P	Blood vessel Q
	less oxygen	more oxygen
	more carbon dioxide	less carbon dioxide
	less glucose	more glucose
	more protein	less protein

39.

Glucose was found in the urine of a healthy person in a test. Which of the following best explains the presence of glucose in his urine?

40.

Questions 40 and 41 refer to the set-up shown below for investigating the respiration of woodlice. The liquid levels on both sides of the U-tube (X and Y) were the same at the beginning of the experiment.

After 30 minutes, the liquid level of X was higher than that of Y. The change in liquid level indicated