Nursing Elites

1. What is the functional group present in aldehydes?

• A. Hydroxyl
• B. Carbonyl
• C. Ester
• D. Amine

Correct answer: B

Rationale: Aldehydes have the functional group -CHO, which is a carbonyl group bonded to a hydrogen atom. The other choices are associated with different functional groups.

2. What is the meaning of the phrase "to be on the same page"?

• A. To be physically close
• B. To agree or understand each other
• C. To be sharing the same goal
• D. To be facing the same direction

Correct answer: B

Rationale: The phrase means to be in agreement or share the same understanding.

3. Which of the following is a risk factor for developing kidney stones?

• A. Consuming a diet rich in fruits and vegetables
• B. Maintaining adequate hydration with water
• C. Having a family history of kidney stones
• D. Regularly engaging in moderate exercise

Correct answer: C

Rationale: Having a family history of kidney stones is a risk factor for developing them because genetics play a role in kidney stone formation. Individuals with a family history are more likely to inherit genetic factors that increase the likelihood of developing kidney stones. While consuming a diet rich in fruits and vegetables, maintaining adequate hydration with water, and regularly engaging in moderate exercise are generally healthy habits that can help prevent kidney stones, they are not direct risk factors for developing them. Therefore, option C, having a family history of kidney stones, is the correct answer.

4. The "master gland" of the endocrine system, located at the base of the brain, secretes various hormones that control other glands is the:

• A. Thyroid gland
• B. Pituitary gland
• C. Adrenal gland
• D. Pancreas

Correct answer: B

Rationale: The correct answer is B: Pituitary gland. The pituitary gland is often referred to as the "master gland" because it plays a crucial role in regulating other endocrine glands in the body. It is located at the base of the brain and secretes various hormones that control functions such as growth, metabolism, reproduction, and stress response. The thyroid gland (A) regulates metabolism, the adrenal gland (C) produces hormones involved in stress response, and the pancreas (D) is primarily responsible for regulating blood sugar levels through insulin production, but they do not serve as the master gland of the endocrine system.

5. Identify the conjunction in the following sentence: He went to the store, but they were already closed.

• A. went
• B. to
• C. but
• D. they

Correct answer: C

Rationale: Conjunctions connect words, phrases, or clauses. "But" joins two contrasting ideas in the sentence.

6. Which term refers to the point of contact between a motor neuron and a muscle fiber, where communication occurs to initiate muscle contraction?

• A. Sarcomere
• B. Synapse
• C. Tendon
• D. Myofibril

Correct answer: b

Rationale: The correct answer is B: Synapse. A synapse is the point of contact between a motor neuron and a muscle fiber. At the synapse, communication occurs in the form of neurotransmitters being released from the neuron and binding to receptors on the muscle fiber, initiating muscle contraction. A sarcomere refers to the basic contractile unit of a muscle fiber, not the point of contact between a motor neuron and muscle fiber. A tendon is a fibrous connective tissue that connects muscle to bone, not the communication point. Myofibril is a structure within muscle fibers that contains sarcomeres, but it is not the specific term for the point of contact between a motor neuron and muscle fiber.

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