ASVAB General Science Test 2 — Questions and Answers
Question 1: Which organelle is responsible for producing energy in the form of ATP in a cell?
- Nucleus
- Ribosome
- Mitochondria (Correct answer)
- Golgi apparatus
Correct answer: Mitochondria
Mitochondria are known as the powerhouses of the cell because they produce ATP through cellular respiration.
Question 2: What is the pH of a neutral solution at 25°C?
- 0
- 7 (Correct answer)
- 14
- 5
Correct answer: 7
A pH of 7 is considered neutral, with values below 7 being acidic and above 7 being basic.
Question 3: Which law states that energy cannot be created or destroyed, only transformed?
- Newton's Second Law
- Law of Conservation of Mass
- First Law of Thermodynamics (Correct answer)
- Boyle's Law
Correct answer: First Law of Thermodynamics
The First Law of Thermodynamics (conservation of energy) states that the total energy of an isolated system remains constant.
Question 4: What type of rock is formed from cooled magma or lava?
- Sedimentary
- Metamorphic
- Igneous (Correct answer)
- Limestone
Correct answer: Igneous
Igneous rock forms when molten rock (magma or lava) cools and solidifies.
Question 5: Which gas do plants absorb from the atmosphere during photosynthesis?
- Oxygen
- Nitrogen
- Carbon dioxide (Correct answer)
- Hydrogen
Correct answer: Carbon dioxide
Plants absorb carbon dioxide (CO₂) from the air and use it along with sunlight and water to produce glucose.
Question 6: What force keeps planets in orbit around the Sun?
- Electromagnetic force
- Nuclear force
- Friction
- Gravity (Correct answer)
Correct answer: Gravity
Gravity is the attractive force between masses that keeps planets in elliptical orbits around the Sun.
Question 7: Which part of the human brain controls balance and coordination?
- Cerebrum
- Medulla oblongata
- Hypothalamus
- Cerebellum (Correct answer)
Correct answer: Cerebellum
The cerebellum coordinates voluntary movements, balance, and fine motor skills.
ASVAB General Science Test 2
Which organelle is responsible for producing energy in the form of ATP in a cell?