answersLogoWhite

0


Best Answer

positive phototropism

User Avatar

Wiki User

11y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

6mo ago

The stimulus that produces growth of the plant toward light is called phototropism. It is caused by the presence of blue light, specifically light in the 440-470nm wavelength range, which is detected by the plant's photoreceptor molecule called phototropin. This photoreceptor triggers a signaling pathway that stimulates cell elongation on the shaded side of the plant, resulting in growth towards the light source.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Which of these external stimuli produces growth of the plant toward light?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the difference between taxis and tropism?

Tropism: is the growth response of a plant that results from certain stimuli. Tropism can be positive, in which case the plant will bend toward the stimulus, or negative, in which case the plant will bend away from stimulus. Taxis: Taxis in animals is the responsive movement of going toward or away from an external stimulus.


Explain how both external and internal stimuli are involved in your action?

The external stimuli involved are as follows: the eyes see the warm coloring of peach, the nose smells the scent of the ripe peach, and your salivary glands start releasing saliva to help dissolve the peach itself. The internal stimuli is mainly your brain, which processes all of this information that the other senses are sending, and sends, for lack of a better word, "spark" to your arm and hand so you can bring the peach toward your mouth and eat it.


What is response of photo tropism?

Light. Tropisms are growth responses to stimuli. Photo-tropism = light-growth


Why do animals respond quickly to external stimuli?

It's a survival mechanism. Reacting quickly can mean the difference between life and death in some situations (ie- a large boulder rolling down a hill toward an animal; that animal is going to move as soon as they notice the boulder). In other cases, external stimuli could mean something good, like sunlight signalling the beginning of the day and thus the beginning of a diurnal animal's activity period.


You observe a plant on your windowsill that grow at an angle toward the outside This is an example of a living things?

Responding to stimuli.


What is the secondary meristems that produces wood toward the inside and bark toward the outside of a tree?

vascular cambium


What is the secondary meristem that produces wood toward that inside and bark toward the outside of the tree?

vascular cambium


What is the secondary meristem that produces wood toward the inside and bark toward outside of a tree?

vascular cambium


What is the secondary meristem that produces wood toward that inside and bark toward that outside of a tree?

vascular cambium


What is that secondary meristem that produces wood toward that inside and bark toward that outside of a tree?

vascular cambium


What is the secondary meristem that produces wood toward the inside and bark toward the outside of a tree?

vascular cambium


How humans respond to internal and external stimuli?

Answer == == plant stimuli plant responseinsects flies around venus flytrap venus flytrap closes its mouth to trap insectplant senses the sun turns or grows toward the sunmorning glory at night closes itself upanimal stimuli animal responseanimal is frightened heart beats fasterearthworm senses the light burrows into the moss