What are some examples of phototropism?

Answer 1

IN PLANTS plant stems grow towards light (Auxins are plant growth hormones. They work by making cells grow longer, and divide more.) The Auxin collects on the dark side of the shoot; therefore, more growth will occur on this side of the plant. Therefore, the shoot will gradually lean towards the sun , important for photosynthesis. They need light for photosynthesis

Answer 2

Phototropism is how a plant reacts to light. A plant will bend the top till it faces the light source. So you have to turn the plant around so it can bend itself upright again, then back over.

Answer 3

Phototropism is the act of a plant growing towards a light source. An example of this would be a houseplant that grows toward a window. Sunflowers are another example of phototropism as they grow straight upward when surrounded by larger plants.

Answer 4

Auxin is a chemical substance responsible for cell elongation in plants.

Auxin travels in the opposite direction of the source of sunlight.

When a shoot of a plant is newly growing, the tip region has excess of auxin, however,

when the sunlight comes from only one direction, then auxin accumulates in the cells that are on the opposite side.

Thus the (vertical line) of cells on the sun-light side has less growth stimulant auxin as compared to the cells on the other end.

This results in the over growth of the opposite side cells as compared to the sun-light side.

This inevitably leads to the bending of the shoot.(something like to metal rods, with different heat capacities are fused --> when heat provided, results in bending.)

For more information Google "Coleoptile Curvature Test"...

Answer 5

Cactus is a plant that is affected by sound

Answer 6

I can provide you with a very clear example that is commonly seen around

- the shoot of plant grows towards light. (phototropism)

Answer 7

Leaf

It is the shoot getting affected by phototropism

Answer 8

A plant bending toward the light

Answer 9

auxins