Formative

1. What is a description of excretion?

•  a chemical reaction that releases energy

• a permanent increase in size and dry mass

•  removal of waste products of metabolism

• taking in materials for energy, growth and development

1. The scientific name for a domestic horse is Equus caballus.
   Which row shows the two parts of the name using the binomial system?

• A

• B

• C

• D

The diagram shows a type of plant cell.

Where does this type of cell come from?

• root

• cuticle

• palisade mesophyll

•  spongy mesophyl

The diagram represents a substance moving across a cell membrane, using energy from respiration.

Which method of transport does the diagram represent?

• active transport

•  diffusion

• evaporation

• osmosis

Which food-testing reagent shows a positive result when it turns from blue to purple?

• Benedict’s solution

• biuret

•  ethanol

•  iodine solution

16. Which conditions lead to the lowest rate of transpiration in a plant?

• cool and high humidity

• cool and windy

• warm and low humidity

• warm and windy

Which factors increase the risk of developing coronary heart disease?

1 increased age

2 regular exercise

3 smoking
4 stress

• 1, 2 and 3

• 1, 2 and 4

• 1, 3 and 4

• 2, 3 and 4

16. What is a description of transpiration?

• exchange of gases between the leaf and the atmosphere

• loss of water vapour from the leaves of a plant

• movement of water from the roots to the leaves

• movement of water through the cells of the leaf

29. Bacteria such as MRSA are resistant to antibiotics. These processes can occur in bacteria.

    1  artificial selection

    2  genetic variation

    3  mutation

    4  natural selection

    Which processes lead to the development of antibiotic resistance?

• 1,2,3 and 4
  

• 1,2 and 3 only
  

• 2,3 and 4 only

• 2 and 4 only

The diagram shows an experiment investigating the effect of light intensity on an aquatic plant.

Photosynthesis occurred in both test-tube P and test-tube Q. Both test-tubes were kept at the same temperature. The number of bubbles produced in test-tube P was 12 bubbles per minute.

What is the most likely number of bubbles produced in one minute in test-tube Q?

• 0

• 3

• 12

• 48