Plant responses multiple choice questions

Plant Responses

Total marks:0 / 11

1 of 11

The following passage outlines the process of phototropism in plants:

'Auxin is synthesised in cells at the ............ of the shoot. Auxin causes the cells to ............ on one side, so the stem bends.

Scientists originally thought auxin was ............ by light but this was disproved by the fact that plants growing in the dark and plants growing in unilateral light had ............ auxin levels.'

What is the correct sequence of missing words?

0 / 1

2 of 11

Which statement provides evidence for geotropism?

0 / 1

3 of 11

Many trees drop their leaves in the autumn.

Which plant hormone(s) is/are thought to be involved in the control of leaf drop?

1 - auxin

2 - ethene

3 - gibberellin

0 / 1

4 of 11

Which plant hormone is known to stimulate seed germination and stem elongation?

0 / 1

5 of 11

What is the role of gibberellins in seed germination?

0 / 1

6 of 11

What effect do auxins have on the growth of plant shoots?

0 / 1

7 of 11

How does the removal of the apical bud affect plant growth?

0 / 1

8 of 11

What is the effect of auxin on the pH in the cell wall?

0 / 1

9 of 11

How do high concentrations of auxins affect lateral shoot growth in plants?

0 / 1

10 of 11

How do plant hormones affect apical dominance?

0 / 1

11 of 11

Which process is directly activated by the presence of auxins in the cell wall?

0 / 1

Plant Responses

Total marks:0 / 11

1 of 11

The following passage outlines the process of phototropism in plants:

'Auxin is synthesised in cells at the ............ of the shoot. Auxin causes the cells to ............ on one side, so the stem bends.

Scientists originally thought auxin was ............ by light but this was disproved by the fact that plants growing in the dark and plants growing in unilateral light had ............ auxin levels.'

What is the correct sequence of missing words?

0 / 1

2 of 11

Which statement provides evidence for geotropism?

0 / 1

3 of 11

Many trees drop their leaves in the autumn.

Which plant hormone(s) is/are thought to be involved in the control of leaf drop?

1 - auxin

2 - ethene

3 - gibberellin

0 / 1

4 of 11

Which plant hormone is known to stimulate seed germination and stem elongation?

0 / 1

5 of 11

What is the role of gibberellins in seed germination?

0 / 1

6 of 11

What effect do auxins have on the growth of plant shoots?

0 / 1

7 of 11

How does the removal of the apical bud affect plant growth?

0 / 1

8 of 11

What is the effect of auxin on the pH in the cell wall?

0 / 1

9 of 11

How do high concentrations of auxins affect lateral shoot growth in plants?

0 / 1

10 of 11

How do plant hormones affect apical dominance?

0 / 1

11 of 11

Which process is directly activated by the presence of auxins in the cell wall?

0 / 1

Plant Responses - exam practice

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Plant Responses - exam practice

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