answersLogoWhite

0

Positive phototropism is when a stem grows upward towards light. This response is controlled by hormones that cause cells on the darker side of the stem to elongate, causing the stem to bend towards the light source.

User Avatar

AnswerBot

1y ago

What else can I help you with?

Related Questions

What kind of tropism is exhibited by a growing plant stem?

Positive phototropism, where the plant stem grows towards a source of light.


What grows up and down the same time?

A plant grows both upward and downward simultaneously. The shoot system, which includes the stem and leaves, grows upward toward the light, while the root system grows downward into the soil for nutrients and stability. This dual growth allows the plant to maximize its access to resources essential for survival.


What kind of tropism is when a plant stem turns toward the sun?

The phenomenon of a plant stem turning toward the sun is known as phototropism. This type of tropism occurs as a response to light stimuli, where the plant grows towards the light source to maximize photosynthesis. Auxins, a class of plant hormones, play a key role in this process by promoting cell elongation on the side of the plant that is away from the light.


What kind of tropism is a iris?

Iris grows towards the light. That is phototropism.


What do you call it when a plant grows toward the earth?

It is called Geo-Tropism


How does light brings about tropic movement in the stem and root of a flowering plant?

photo tropism is the growth-response to light in a plant. stems exhibit positive photo tropism while most roots exhibit negative photo-tropism


What is the function of the shoot?

An embryonic shoot is the structure in the seed that will become the stem of the new plant. Also, it grows upward through the soil surface once the seed opens.


Which parts grows to become the main stem about the flower?

which partys grows to become the ,ain stem


What is the function of the Embryonic Shoot?

An embryonic shoot is the structure in the seed that will become the stem of the new plant. Also, it grows upward through the soil surface once the seed opens.


What has a stem but never grows?

stem and leaf plot


What will the plumule do as it grows?

it will be a stem


What is a tropism that is towards the stimulus called?

well ..thats a good question.. i studied that for a while and if i remember , it is called POSITIVE TROPISM.. but if it grows away from the stimulus its NEGATIVE TROPISM. Nice question.. alot of people ask that.. but they really dont pay attention because it in the question! :) hope this helps!! :) :P