
What is meant by positive and negative tropic movements in plants? Explain them by giving suitable examples.

Important Questions on Chemical Coordination in Plants

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following questions :
Name the scientific phenomenon that is being overcome by pruning. (Apical dominance/Bud dominance)

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question:
What plant hormone is responsible for the scientific phenomenon of apical dominance.

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question:
Name one plant hormone which inhibits apical dominance.

The figure given below shows the stages of ripening in a banana. Answer the question that follow:
Name the plant hormone responsible for the above changes.

The figure given below shows the stages of ripening in a banana. Answer the question that follow:
Mention two characteristic features of ethylene hormone.

The diagram given alongside shows a type of tropism. Study the diagram and answer the question given below:
Name and define the type of tropism shown in the diagram.

The diagram given alongside shows a type of tropism. Study the diagram and answer the question given below:
Label the guidelines (1) to (4).
