Survival Responses (AQA A level Biology 6.1)

When a mobile organism moves towards light, this response is known as...?

When a mobile organism's movements change in speed or rate of turning in response to a stimulus this response is known as a ...?

When a plant grows towards the light, this response is known as..

• negative geotropism

• positive phototropism

• negative phototropism

• positive phototaxis

When a maggot moves away from light, this response is...?

• negative phototropism

• negative photokinesis

• negative phototaxis

• negative hydrotaxis

Which of the following responses would be associated with the roots of a plant?

• positive geotropism

• negative phototropism

• positive phototropism

• positive hydrotropism

In shoots, IAA inhibits cell elongation.

• True

• False

In roots, IAA stimulates cell elongation.

• False

• True

Where in a plant are plant growth substances produced?

• Storage organs

• The tips of roots

• The tips of shoots

• Chloroplasts

Which statistical test would be used to determine if there was a significant difference in the number of maggots preferring a humid area to a dry area?

• T-test

• Spearman's rank

• Chi-squared

By which process does IAA leave a plant cell?

• Diffusion

• Facilitated diffusion

• Active transport

• Osmosis