Explanation

• Sucrase (Invertase) hydrolyzes sucrose into glucose and fructose.
• Sucrase is a digestive enzyme found in the small intestine.
• It breaks the glycosidic bond of sucrose by adding water (hydrolysis).
• The products are one molecule of glucose and one molecule of fructose.
• These simple sugars are then absorbed into the bloodstream.

Last verified on 09-07-2026

Explanation

• 760 torr = 101,325 Pa
• 760 torr = 1 atm
• 760 torr = 760 mmHg
• SI Unit of Pressure: Pascal (Pa)

Last verified on 09-07-2026

Explanation

• A Barometer is an instrument used to measure air (atmospheric) pressure.
• It helps in weather forecasting by measuring changes in atmospheric pressure.
• The mercury barometer is the oldest type of barometer.
• It was invented by Evangelista Torricelli in 1643.
• Barometers are widely used in meteorology and aviation.

Last verified on 09-07-2026

Explanation

• The Human Genome Project (HGP) was completed in 2003.
• It was an international scientific research project to map and sequence the entire human genome.
• The project officially began in 1990.
• It took 13 years to complete.
• It identified approximately 20,000–25,000 human genes.
• Human Chromosomes: 23 pairs (46 chromosomes)
• Human Genome Size: About 3 billion DNA base pairs

Last verified on 08-07-2026

Explanation

• Veal is the meat from young calves.
• It can come from calves of either sex and any breed.

Last verified on 03-07-2026

Explanation

• O₃ is the chemical formula of ozone gas.
• Ozone is an allotrope of oxygen containing three oxygen atoms.
• It is mainly found in the stratosphere, where it forms the ozone layer.
• The ozone layer protects Earth from harmful ultraviolet (UV) radiation.

Last verified on 30-06-2026

Explanation

• Carbon dioxide (CO₂) and oxygen (O₂) move in plants through stomata.
• Stomata are tiny pores present on leaves.
• These gases move by diffusion, not active transport.
• They are essential for photosynthesis and respiration.

Last verified on 25-06-2026

Explanation

• The Sun is the ultimate and main source of energy on Earth.
• It provides energy through solar radiation (light and heat).
• All forms of energy on Earth directly or indirectly come from the Sun.
• It supports life, climate, and ecosystems on Earth.

This energy is then converted into various forms, such as:

• Thermal energy (heat)
• Kinetic energy (wind, water currents)
• Electrical energy (generated from solar panels)
• Chemical energy (fossil fuels, biomass)
• Biological energy (food chains, ecosystems)

Last verified on 16-06-2026

Explanation

• Ocean water is not drinkable due to a high amount of sodium chloride (common salt).
• This salt makes water too salty for human consumption.
• Seawater also contains small amounts of other dissolved minerals.
• High salt concentration causes dehydration in the human body.

Last verified on 25-06-2026

Explanation

• GMO stands for Genetically Modified Organism.
• It refers to an organism whose genetic material (DNA) has been changed using genetic engineering techniques.
• GMOs are developed to improve traits such as disease resistance, increased production, or better quality.

Last verified on 16-06-2026