Explanation

• Chlorophyll is the green pigment responsible for photosynthesis in plants.
• It captures sunlight and converts it into chemical energy to make food.

• Plants use chlorophyll to produce glucose and oxygen through photosynthesis.
• Chloroplasts contain chlorophyll a and b, which absorb sunlight.

Last verified on 22-01-2026

Explanation

• Macronutrients are the nutrients that are needed in the highest concentration by living organisms.
• They include carbohydrates, proteins, and fats, which provide energy and support growth and maintenance of tissues.

Last verified on 08-11-2026

Explanation

• Mitosis produces two genetically identical daughter cells from one parent cell.
• Each daughter cell receives the same number of chromosomes as the parent cell.
• Mitosis is important for growth, tissue repair, and replacement of damaged or old cells.

Last verified on 08-11-2026

Explanation

• Guard cells are specialized cells that surround each stoma and regulate its opening and closing.
• When guard cells absorb water and become turgid, the stomata open.
• When guard cells lose water and become flaccid, the stomata close.
• This process regulates gas exchange and water loss through transpiration.

Last verified on 08-11-2026

Explanation

Integrated Circuit (IC)

• - Definition: A small electronic circuit built on a single semiconductor chip.
• - Material: Usually silicon.
• - Components: Transistors, diodes, and resistors.
• - Purpose: Performs electronic functions in modern devices.
• - Uses: Computers, mobile phones, and calculators.

Last updated 06 Nov 2026 by NA