Most Important & Most Repeated MCQs

Starch is the main reserve (stored) food of higher plants.
Was is a protective substance.
Lipids are fats that cant reserve food.
Cellulose is a structural material of plant cell wall.

Antibiotics are substances that stop the growth of microorganisms or kill them, even when present in very small (low) amounts.
Lipids are fats and not used to control microbes.
Carbohydrates provides energy and helps in growth.
Antibodies are produced by the body and provide low concentration to inhibit growth.

Endoplasmic Reticulum has membrane.
Mitochondria has two membranes.
Golgi apparatus surrounded by membrane.

Amphoteric means a substance that can act both as an acid and as a base.

Ulva is a green, simple and multicellular organism. It lives in water. It performs photosynthesis.
It is commonly called Sea Lettuce because it looks like lettuce.

Mitochondria are the Powerhouses of the cell. They take food and turn into energy that cell can use. Its fact, without Mitochondria cell cannot work or survive.
Mitochondria have their own DNA

Euglena is like a tiny green animal.

In NaCl, Ions are fixed in place or in solid form and cannot move.
In NaCl (Molten / Melted), Ions are free to move and electricity can flow.
NaCl (Aqueous / dissolved in water), Na and Cl can dissolved in water and can carry current.

1ATM (atmosphere) is a normal air pressure at sea level.
1ATM is equal to 760 Torr.
In simple words atm is unit of Pressure.
The space (volume) that 1 mole of a gas takes is called molar volume.