Plant Growth: Auxins and Gibberellins

Plant Growth: Auxins and Gibberellins

Assessment

Interactive Video

Science, Physics, Chemistry, Biology, Other

6th Grade - University

Hard

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The video explores how plants grow and respond to light and gravity through hormones like auxins, cytokinins, and gibberellins. Auxins influence plant bending by affecting cell growth differently in stems and roots. Phototropism and geotropism are explained, showing how plants grow towards light and respond to gravity. Cytokinins and gibberellins also play roles in plant growth, with gibberellins aiding in seed germination and flowering.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes plants to bend towards the light?

The breakdown of auxins on the light side

The production of cytokinins

The presence of eyes in plants

The growth of roots towards the light

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do auxins affect root growth in response to light?

They cause roots to grow more on the light side

They have no effect on root growth

They cause roots to grow less on the shaded side

They make roots grow towards the light

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of cytokinins in plant growth?

They are responsible for root elongation

They inhibit the growth of stems

They work independently of auxins

They work alongside auxins

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which hormone is responsible for converting starch into sugars during seed germination?

Auxins

Cytokinins

Gibberellins

Ethylene

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What additional roles do gibberellins play in plant development?

They only assist in root growth

They solely focus on leaf growth

They prevent seed germination

They stimulate flowering and fruit production