(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Biology

Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.

Would it make a difference if the experimental set-up is kept in bright sunshine?

The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.

Name the process intended for study. 

An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Name the process being studied.

An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Explain the process named above in 7.1.

An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Suggest a suitable control for this experiment.

An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Why was the pot covered with a plastic sheet?

An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Mention two ways in which this process is beneficial to plants.

An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

List three adaptations in plants to reduce the above mentioned process.

A plant hormone related with inhibition of senescence is

Apical dominance phenomenon is caused by

Which of the following hormones regulate stomatal colour?

Auxins are abundantly produced in

Common gibberellin is

Stems are

Match the items in column A with those of column B.

Name the following:

Hormone that stimulates growth by cell division.

Name the following:

Growth-retarding hormone in plants.

List five plant growth hormones and briefly describe their roles.

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:

1. Name the scientific phenomenon that is being overcome by pruning.
2. What plant hormone is responsible for the scientific phenomenon mentioned in (a)?
3. Name one plant hormone which inhibits the said phenomenon.

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 mentioned in 1.1.