Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Biology

Answer in one word or one line

What is the position of ovaries in cockroach?

Draw a labelled diagram of alimentary canal of a cockroach

Mention the function of the following - Malpighian tubules

How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?

Differentiate between for Osmotic Pressure and Osmotic Potential

Even though a very few cells in a C₄ plant carry out the biosynthetic – Calvin pathway, yet they are highly productive. Can you discuss why?

Discuss “The respiratory pathway is an amphibolic pathway."

Define the following:

Exocrine gland

Write a short note on the function of the following hormone:

Insulin and Glucagon

Why do we call our heart myogenic?

Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?

 Draw labelled diagrams of the following: Ear

Write short notes on the following Ear ossicles

Write short notes on the following: Cochlea 

Which part of our body helps us in maintaining the body balance?

Which part of our body helps us in maintaining the body balance?

Explain the following:

Mechanism through which a sound produces a nerve impulse in the inner ear.

Answer the following:

Which part of the ear determines the pitch of a sound?

Naked cytoplasm, multinucleated and saprophytic are the characteristics of ______.

Cardiac activity could be moderated by the autonomous neural system. Tick the correct answer: