The invention of the microscope was a great boon for people to study smaller objects or micro-organisms. Scientists made different microscopes by using different types of lenses for magnification.
Gaurav made a table of two scientists and the kind of microscope they invented.

Identify P and Q

1. P — Simple microscope, Q — Compound microscope.
2. P — Electron microscope, Q — Simple microscope.
3. P — Compound microscope, Q — Electron microscope.
4. P — Compound microscope, Q — Simple microscope.

Assertion (A): Ribosomes are considered as the 'delivery system of the cell'.

Reason (R): Delivery system is concerned with the secretions of the cell including enzymes, hormones, etc.

1. A is True and R is False.
2. A is False and R is True.
3. Both A and R are True.
4. Both A and R are False.

Assertion (A): Cisternae are the finger-like projections arising from the inner walls of mitochondria.

Reason (R): These projections increase the surface area of the inner membrane and help in the production of ATP.

1. A is True and R is False.
2. A is False and R is True.
3. Both A and R are True.
4. Both A and R are False.

Assertion (A): Euglena is an example of a prokaryotic cell as it is unicellular.

Reason (R): Prokaryotes are microscopic organisms with a well-defined nucleus.

1. A is True and R is False.
2. A is False and R is True.
3. Both A and R are True.
4. Both A and R are False.