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Which of the following is not a state of matter?

  • (A) Solid
  • (B) Liquid
  • (C) Gas
  • (D) Energy

Answer: Energy

Energy is not a state of matter but can exist in various forms such as thermal, kinetic and potential energy.

What is the main function of the ribosome in a cell?

  • (A) Protein synthesis
  • (B) DNA replication
  • (C) Energy production
  • (D) Waste removal

Answer: Protein synthesis

Ribosomes are responsible for synthesizing proteins by translating RNA into amino acid sequences.

Which of the following is not a type of muscle tissue?

  • (A) Cardiac
  • (B) Skeletal
  • (C) Epithelial
  • (D) Smooth

Answer: Epithelial

Epithelial tissue forms protective layers on surfaces and organs, whereas cardiac, skeletal and smooth tissues are types of muscle tissue.

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What does the term pH measure?

  • (A) Temperature
  • (B) Pressure
  • (C) Acidity or alkalinity
  • (D) Density

Answer: Acidity or alkalinity

pH measures how acidic or alkaline a substance is, with values ranging from 0 (acidic) to 14 (alkaline).

What is the formula for calculating speed?

  • (A) Speed = Distance ? Time
  • (B) Speed = Distance / Time
  • (C) Speed = Time / Distance
  • (D) Speed = Distance + Time

Answer: Speed = Distance / Time

The formula for speed is distance divided by time, indicating how fast an object moves.

Which organ produces insulin in the human body?

  • (A) Liver
  • (B) Pancreas
  • (C) Kidney
  • (D) Stomach

Answer: Pancreas

The pancreas produces insulin, a hormone that regulates blood sugar levels in the body.

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What is the main component of the Sun?

  • (A) Hydrogen
  • (B) Oxygen
  • (C) Helium
  • (D) Carbon

Answer: Hydrogen

Hydrogen makes up about 75% of the Suns mass and undergoes nuclear fusion to produce energy.

What type of bond is formed when electrons are transferred?

  • (A) Covalent bond
  • (B) Ionic bond
  • (C) Metallic bond
  • (D) Hydrogen bond

Answer: Ionic bond

An ionic bond is formed when electrons are transferred from one atom to another, creating charged ions that are attracted to each other.

What is the major component of natural gas?

  • (A) Methane
  • (B) Ethanol
  • (C) Propane
  • (D) Butane

Answer: Methane

Methane (CH4) is the major component of natural gas, which is used as a fuel source.

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What is the process of cell division in somatic cells?

  • (A) Mitosis
  • (B) Meiosis
  • (C) Binary fission
  • (D) Budding

Answer: Mitosis

Mitosis is the process where somatic (body) cells divide to form two identical daughter cells for growth and repair.

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