Question

Which of these properties are not present in hormones?

• A. They can easily diffuse through membranes.
• B. They are specific in their action.
• C. They are never stored in body and synthesized at once.
• D. They have a high molecular weight and not found in plants.

Answer 1

The correct option is D They have a high molecular weight and not found in plants.

• A hormone may be defined as a specific product (organic substance) of an endocrine gland secreted into the blood which carries it to a specific part of the body where it produces a definite physiological effect.
• Hormones exert their effects not where they are locally produced, but on other tissues of the body. And never stored in the body and synthesized at once. Hence, They have a high molecular weight and not found in plants is not the property of hormones.

So, the correct answer is 'They have a high molecular weight and not found in plants'.