Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

What is called polyribosome?

What are the most common habitats of fungi?

ATPase enzyme consists of two parts. What are those parts? How are they arranged in the thylakoid membrane? Conformational change occurs in which part of the enzyme?

What is the process of urine excretion called?

A maize grain is not a seed. Explain.

Think of a plant which lacks chlorophyll. From where will it obtain nutrition? Give an example of such a type of plant.

Name the smallest cells in the living world and mention their approximate size.

Enlist the types of chromosomes based on the position of centromere.

Name the opening of the gastrovascular cavity of cnidarians. Where is it situated?

Indicate whether the following statements are true or false: Glucose is actively reabsorbed in the proximal convoluted tubule.