Science (English Medium) Class 11 - CBSE Question Bank Solutions for Biology

Name a hormone which is gaseous in nature

Name a hormone which induces femaleness in flowers of cucumber

Name a hormone which is used for killing weeds (dicots)

Name a hormone which induces flowering in long day plants

Which of the following is removed from our body by lungs?

What is erythropoiesis? Which hormone stimulate it?

State whether true or false:

Insulin resistance results in a disease called diabetes mellitus.

A sample of urine was diagnosed to contain high content of glucose and ketone bodies. Based on this observation, answer the following:

Which endocrine gland and hormone is related to this condition?

A sample of urine was diagnosed to contain high content of glucose and ketone bodies. Based on this observation, answer the following:

Name the cells on which this hormone acts.

A sample of urine was diagnosed to contain high content of glucose and ketone bodies. Based on this observation, answer the following:

What is the condition called and how can it be rectified?

What is the stomatal apparatus?

List the hormones secreted by the following:

Pancreas

Which hormone deficiency is responsible for the following?

Diabetes mellitus

Draw the labelled diagram of the following:

Gram seed

Draw the labelled diagram of the following:

V.S. of maize seed

By looking at a plant externally can you tell whether a plant is C₃ or C₄? Why and how?

By looking at which internal structure of a plant can you tell whether a plant is C₃ or C₄? Explain.

RuBisCo is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCo carries out more carboxylation in C₄ plants?

Give a comparison between the following:

C₃ and C₄ pathways

Give comparison between the following:

Anatomy of leaf in C₃ and C₄ plants