Plant Growth and Response Concepts

The video tutorial explains the process of a dry pea hydrating and awakening from dormancy, followed by the emergence of the primary root. It describes how part of the root grows behind rocks and how a short drought causes the root to cease growth and shrink. The tutorial continues with the growth of lateral secondary roots and the effect of lighting, which leads to the de-etiolation of the seedling and expansion of the leaf system. Finally, it mentions another short drought affecting the plant.

What happens to the dry pea when it hydrates?

• It produces flowers.

• It starts to decay.

• It awakens from dormancy.

• It remains dormant.

Which part of the plant emerges first from the pea?

• The primary root or radicle.

• The stem.

• The leaves.

• The flowers.

What happens to the root during a short drought?

• It produces flowers.

• It turns green.

• It ceases growth and desiccates.

• It continues to grow rapidly.

What triggers the de-etiolation of the seedling?

• Turning on the lighting.

• Watering the plant.

• Increasing the temperature.

• Adding fertilizer.

What happens to the leaf system when lighting is turned on?

• It expands.

• It turns yellow.

• It shrinks.

• It falls off.