ATI TEAS 7
physics
1. What type of energy does a stretched rubber band possess?
- A. Kinetic energy
- B. Potential energy
- C. Thermal energy
- D. Mechanical energy
Correct answer:
Rationale: When a rubber band is stretched, it stores potential energy due to its position or state.
2. What is the process of cells restoring damaged or lost tissues called?
- A. Cell division
- B. Cell differentiation
- C. Cell growth
- D. Cell regeneration
Correct answer: D
Rationale: Rationale: A) Cell division refers to the process by which a cell divides into two daughter cells. B) Cell differentiation is the process by which cells become specialized for specific functions. C) Cell growth is the increase in cell size or number. D) Cell regeneration is the process of cells restoring damaged or lost tissues by replacing or repairing the damaged cells. This process is essential for healing wounds and maintaining tissue integrity.
3. Which of the following is an example of an aromatic hydrocarbon?
- A. Ethane
- B. Benzene
- C. Propane
- D. Butene
Correct answer: B
Rationale: Benzene is an example of an aromatic hydrocarbon. The other choices are aliphatic hydrocarbons.
4. Which hormone, produced by the adrenal glands, is essential for the regulation of electrolyte balance, particularly sodium and potassium, in the body?
- A. Aldosterone
- B. Epinephrine
- C. Cortisol
- D. Insulin
Correct answer: A
Rationale: The correct answer is A: Aldosterone. Aldosterone is a hormone produced by the adrenal glands that plays a crucial role in regulating electrolyte balance, especially sodium and potassium levels in the body. It acts on the kidneys to increase the reabsorption of sodium and excretion of potassium, which helps to maintain proper fluid balance and blood pressure. Epinephrine (B) is involved in the 'fight or flight' response, cortisol (C) is a stress hormone, and insulin (D) regulates blood sugar levels, but neither of these hormones primarily regulates electrolyte balance like aldosterone does.
5. The muscular chamber of the heart that receives blood from the body and pumps it to the lungs is the:
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Left ventricle
Correct answer: C
Rationale: The correct answer is C: Right ventricle. The right ventricle receives deoxygenated blood from the body and pumps it to the lungs for oxygenation. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle. The left atrium receives oxygenated blood from the lungs and passes it to the left ventricle. The left ventricle then pumps oxygenated blood to the rest of the body. Understanding the flow of blood through the heart chambers is essential for grasping the functions of each chamber in the circulatory system.
6. What type of energy is possessed by an object due to its position or configuration?
- A. Kinetic energy
- B. Thermal energy
- C. Potential energy
- D. Electrical energy
Correct answer: c
Rationale: Potential energy is the energy possessed by an object due to its position or state.
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