PART - 1 - Unit III : CH - 9 Biomolecules — BIOLOGY STD 11 Science — Question

What is meant by sheathing leaf base? Which type of plants have it?

Name the layers of the dermis of frog.

Mark the odd one of the following group. Oxaloacetic acid, citric acid, succinic acid, pyruvic acid.

Name the enzymes involved in the breakdown of nucleotides into sugars and bases?

Name the nutrients which are absorbed by simple diffusion.

A separate layer of cuticle covers the epidermis. What is its use?

Comment upon the role of ear in maintaining the balance of the body and posture.

What is the part of myosin that contains tails called?

Name the hormone that acts as a check on the rennin-angiotensin mechanism.

Name (a) the connective tissue layer that holds together a number of muscle bundles and (b) the store house of calcium ions in skeletal muscles.