Snapquiz - Tropism and Plant Hormones

Question 1. Gravitropism is growth towards what?

Down.
A light source.
Up.
A heat source.

Question 2. What effect do hormones have on the growth of roots?

The cells recede.
The cells increase in width.
The cells elongate.
The cells slow their growth.

Question 3. Which hormone controls both phototropism and gravitropism?

Auxin.
Adrenaline.
Oestrogen.
Ethylene.

Question 4. What effect do hormones have on the growth of shoots?

The cells elongate.
The cells increase in width.
The cells recede.
The cells slow their growth.

Question 5. In which side of a plant shoot do the hormones controlling growth collect?

The side away from the sun.
The top side.
The side facing the sun.
The bottom side.

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