1993 年

The graph below shows the relative concentration of glucose, proteins and urea in the fluids obtained from various parts of the mammalian kidney :

Which of the following correctly matches the three curves ?

Which of the following is not an excretory organ of the human body ?

When a drop of sucrose solution was put onto the sides of a boy’s tongue, it did not taste sweet to him. It can be concluded that

In the regulation of body temperature in mammals, the skin acts as

Questions 37 and 38 refer to the diagrams below which show the conditions of certain muscles associated with the hind limb of a rabbit. Diagram I shows the condition when the rabbit is about to jump. Diagram II shows the condition at a later stage when the rabbit’s hind limb is about to lift off from the ground :

Which muscles contract to effect a change from the condition shown in Diagram I to that in Diagram II ?

Which of the following are concerned with the prevention of bacterial infections in different parts of the human body ?

Which of the following methods best preserves the vitamin C content in fruit ?

The diagram below shows a sprouting potato tuber :

Which of the following statements is incorrect ?