Explanation

• An electron carries a negative electric charge.
• Its charge is approximately −1.602 × 10⁻¹⁹ C.
• A proton has an equal magnitude of positive charge, while a neutron has zero electric charge.
• The charge of an electron is called the elementary charge with a negative sign.

Explanation

• Olericulture is a branch of horticulture.
  • It focuses on the cultivation, growth, and harvesting of vegetables.
  • Helps improve yield, quality, and pest management in vegetables.
  • Important for food supply and nutrition.
  • Examples include tomatoes, carrots, and cabbage.

Last verified on 12-02-2026

Explanation

• Pomology is the branch of horticulture that deals with the study, cultivation, and production of fruits.
• Includes fruit breeding, harvesting, storage, and marketing.
• Examples of fruits studied: apple, mango, citrus, banana, grapes.

Last verified on 31-01-2026

Explanation

• Mycology is the branch of biology that studies fungi (fungus).
• It covers the structure, classification, growth, reproduction, and importance of fungi.
• Fungi include mushrooms, yeasts, and molds.

Additional information:

• Entomology → Insects
• Mineralogy → Minerals
• Acoustics → Sound

Last verified on 06-10-2026

Explanation

• The cell wall of fungi is primarily made of chitin.
• It is a strong structural polysaccharide that provides support, strength, and protection.

Additional information:

• Cell membrane: Located inside the cell wall and controls the movement of substances into and out of the cell.
• Plants: Their cell walls are mainly made of cellulose.
• Bacteria: Their cell walls typically contain peptidoglycan.

Last verified on 15-10-2026