Which one of the following foods contains the most energy per 100 g?

Which of the following statements about photosynthesis is NOT true?

Which of the following substances contains the elements carbon, hydrogen, oxygen and nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins

Active transport:

A typical soil contains mineral particles, humus, water, air and:

In a plant cell, turgor is caused by:

The following are all features of insect-pollinated flowers EXCEPT for:

All of the following are components of an ecosystem EXCEPT for:

An example of an air pollutant is:

Which of the following does NOT play a role in evolutionary change?

An enzyme which has an optimum pH of 3 will function best in the:

The following diagram shows a model used to show how breathing movements take place:

Which part of the model represents the diaphragm?

Which of the following is NOT a way in which infectious diseases can be transmitted?

The biceps and triceps are an antagonistic pair of muscles because:

The length of an insect such as a grasshopper increases in steps.This is because:

In order to carry out photosynthesis, a plant needs:

Which of the following routes taken by blood in the body is correct?

Oxygen is carried around the body by the:

Which one of the following is NOT a function of the placenta?

75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?

Which of the following is NOT transported in phloem?

Which of the following is NOT found dissolved in plasma?

Vaccination causes a person′s immune system to produce:

AIDS is a killer disease because:

Which of the following conditions is NOT caused by a poor diet?

When a person who has diabetes injects himself with insulin it:

Plant stems grow towards a light source.This is an example of:

Malaria is spread by:

An alternate form of a gene is called an:

A lack of vitamin D in the diet causes:

The optimum pH for most enzyme action is:

Vegetables like cauliflower, cabbage and broccoli have been bred from the original wild brassica plant by:

Which one of the following factors does NOT affect the rate of transpiration?

Which one of the following is a biological component of a pond ecosystem?

Which one of the following structures is responsible for controlling entry and exit of materials into and out of the cell?

Proteins are:

All of the following are possible consequences of global warming EXCEPT for:

The following are all minerals EXCEPT for:

Which of the following statements about diffusion is NOT true?

In the diagram of a section through a synovial joint, the part labelled X represents the: