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

• Raw Materials: Ammonia (NH₃) and Carbon Dioxide (CO₂)
• Chemical Formula: CO(NH₂)₂
• Nitrogen Content: 46%
• Type: Nitrogen fertilizer
• Industrial Process: Bosch–Meiser process

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

• The pH value of pure water at room temperature is 7.
• A pH of 7 means the solution is neutral.
• Pure water contains equal amounts of H⁺ and OH⁻ ions.
• The pH scale ranges from 0 to 14.
• Room temperature is approximately 25°C.

Explanation

When pressure is in atm and volume is in liters, use R = 0.0821 L·atm·mol⁻¹·K⁻¹.

The value of R depends on the units, not on the temperature (300 K).

Last verified on 09-07-2026

Explanation

• A black hole has an extremely strong gravitational field.
• Its gravity is so powerful that even light cannot escape from it.
• Black holes are formed when very massive stars collapse after exhausting their fuel.
• The boundary beyond which nothing can escape is called the event horizon.
• The idea of black holes comes from Einstein's General Theory of Relativity (1915).

Last verified on 08-07-2026

Explanation

• Sputnik-1 was launched by the USSR (Soviet Union) on 4 October 1957.
• It was the world's first artificial satellite, beginning of the Space Age.
• It started the Space Race between the Soviet Union and the United States.
• Launch Site: Baikonur Cosmodrome, Kazakhstan
• Weight: 83.6 kg
• Orbital Period: About 96 minutes

Last verified on 09-03-2026

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

• Geopolitics is the study of how geography influences politics and international relations.
• It examines how location, borders, resources, and strategic position affect a country's foreign policy.
• The Swedish political scientist Rudolf Kjellén introduced the term "Geopolitics" in 1899.

Last verified on 08-07-2026

Explanation