Hema bought some unripe tomatoes and left half of them in a brown paper bag and the other half in an open tray. After two days she noticed that the tomatoes in the paper bag had ripened, but the ones in the open tray had not. What hormone facilitated the ripening of tomatoes?

Question

TextPlant Hormones and Their Functions

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The plant hormone whose concentration stimulates the cells to grow longer on the side of the shoot which is away from light is :

Name a plant growth hormone synthesized at the shoot tip. Explain its effect on the growth of a plant in response to light.

Phototropism in Plants

Plant Hormones and Their Functions

A plant growth inhibitor hormone which causes wilting of leaves is called :

Select from the following a plant hormone which promotes cell division.

Where are auxins synthesized ? How do they promote phototropism ?

Select from the following a plant hormone which promotes cell division.