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Nursing Elites

ATI TEAS 7

physics

1. What is the relationship between mass and weight on Earth's surface?

Correct answer: a

Rationale: On Earth's surface, mass and weight are directly proportional but not equal, as weight is the force due to gravity acting on an object's mass.

2. What is the scientific name for the tear gland?

Correct answer: A

Rationale: The lachrymal gland is the almond-shaped gland located above each eye, responsible for producing tears. Tears are a complex mixture of water, electrolytes, proteins, and other substances that help lubricate and protect the eyes from dryness and irritation.

3. What is the name of the regulatory region in a gene that controls its expression?

Correct answer: C

Rationale: Rationale: A) Exon: Exons are the coding regions of a gene that are transcribed into mRNA and eventually translated into proteins. Exons do not regulate gene expression. B) Intron: Introns are non-coding regions of a gene that are removed during RNA processing and do not play a direct role in controlling gene expression. C) Promoter: The promoter is a regulatory region located at the beginning of a gene that initiates the process of transcription by binding transcription factors and RNA polymerase. It plays a crucial role in controlling gene expression. D) Enhancer: Enhancers are regulatory regions that can be located far from the gene they regulate and can increase the transcription of a gene. While enhancers are important for gene expression, the specific region that controls gene expression is the promoter. Therefore, the correct answer is C) Promoter, as it is the regulatory region in a gene that controls its expression by initiating transcription.

4. What property of a wave determines the loudness of sound when heard by the human ear?

Correct answer: b

Rationale: The amplitude of a sound wave correlates with its perceived loudness by the human ear.

5. Which of the following units is equivalent to a joule?

Correct answer: a

Rationale: A joule, as a unit of energy, is equivalent to a newton-meter in terms of work or energy.

6. Regular exercise is beneficial for the muscular system by:

Correct answer: B

Rationale: The correct answer is B: 'Improving muscle strength and endurance.' Regular exercise is beneficial for the muscular system as it helps to strengthen muscles and increase endurance. By engaging in consistent physical activity, muscles adapt and grow stronger, which can enhance overall physical performance and reduce the risk of injury. Exercise also improves blood flow to the muscles, aiding in their recovery and growth. It does not decrease muscle mass (A), make muscles less flexible (C), or increase the risk of muscle tears (D), as long as proper form and gradual progression are followed.

Similar Questions

Regular exercise is beneficial for the muscular system by:
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Which of the following phases of the cell cycle is characterized by the replication of DNA?
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