Podcast
Questions and Answers
What hormone is present in the cells farthest from the light during phototropism?
What hormone is present in the cells farthest from the light during phototropism?
- Cytokinin
- Auxin (correct)
- Gibberellin
- Ethylene
Which term describes the growth of an organism towards a light source?
Which term describes the growth of an organism towards a light source?
- Positive phototropism (correct)
- Gravitropism
- Negative phototropism
- Skototropism
What does the combination of phototropism and gravitropism allow plants to do?
What does the combination of phototropism and gravitropism allow plants to do?
- Grow towards a light source only
- Remain stationary
- Grow away from darkness only
- Grow in the correct direction (correct)
In what direction do most plant shoots exhibit phototropism?
In what direction do most plant shoots exhibit phototropism?
Which type of movement is defined as growth towards darkness?
Which type of movement is defined as growth towards darkness?
Explain the difference between positive phototropism and negative phototropism.
Explain the difference between positive phototropism and negative phototropism.
How does the presence of auxin in cells farthest from the light contribute to phototropism?
How does the presence of auxin in cells farthest from the light contribute to phototropism?
Explain how phototropism and skototropism differ in their response to light and darkness.
Explain how phototropism and skototropism differ in their response to light and darkness.
What is the role of chloroplast rearrangement in the leaves of plants exhibiting positive phototropism?
What is the role of chloroplast rearrangement in the leaves of plants exhibiting positive phototropism?
How does negative phototropism in some vine shoot tips benefit the plant?
How does negative phototropism in some vine shoot tips benefit the plant?
