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

Explanation

• A Decomposition Reaction is a type of chemical reaction where a single compound breaks down into two or more simpler substances.
• This is the opposite of a Combination Reaction, where two or more substances combine to form a new compound.

Last verified on 07-11-2026

Explanation

• The instrument used to measure temperature is called a thermometer.
• A thermometer shows how hot or cold an object or place is.

Additional information:

• Barometer measures air pressure.
• Hygrometer measures humidity (moisture in air).

Last verified on 16-06-2026

Explanation

• Epistasis occurs when the expression of one gene is affected by another gene at a different locus.
• This interaction can mask or modify the effects of the other gene, leading to variations in phenotypes.

Last verified on 06-11-2026

Explanation

Water molecules are held together by hydrogen bonds,

It is a type of strong intermolecular force

Where the slightly positive hydrogen of one molecule attracts the slightly negative oxygen of another, creating a "sticky" network that gives water unique properties like surface tension.

Explanation

• The female gametophyte of angiospermic plants is the embryo sac.
• It is also known as the megagametophyte.
• It is the haploid (containing one set of chromosomes) structure within the ovule that contains the egg cell.
• It is responsible for fertilization.

Last verified on 06-11-2026