which type of muscle is responsible for voluntary movements
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ATI TEAS 7

ATI TEAS 7 Science

1. Which type of muscle is responsible for voluntary movements?

Correct answer: B

Rationale: The corrected question is asking about the type of muscle responsible for voluntary movements, which is skeletal muscle (Choice B). Skeletal muscle is under conscious control and is responsible for voluntary movements like walking or lifting objects. Smooth muscle (Choice A) is found in organs like the intestines and blood vessels, responsible for involuntary movements. Cardiac muscle (Choice C) is specific to the heart and is also involuntary. 'Involuntary' (Choice D) is a general term and does not specify a type of muscle responsible for voluntary movements.

2. What is the purpose of genetic counseling?

Correct answer: C

Rationale: The purpose of genetic counseling is to provide information and support to individuals and families with genetic risks. Genetic counselors aim to explain the implications of genetic testing, discuss risks and options, and offer emotional and psychological support to help individuals make informed decisions regarding their genetic health. Choice A is incorrect because genetic counseling is not focused on treatment but rather on providing information and support. Choice B is incorrect as genetic counselors do not primarily diagnose genetic diseases in newborns but rather provide guidance and support based on existing diagnoses. Choice D is not the purpose of genetic counseling; genetic counselors do not collect DNA samples for research purposes but instead focus on assisting individuals and families in understanding and managing their genetic risks.

3. Which term is used to classify reactions that require light energy to proceed?

Correct answer: C

Rationale: Reactions that require light energy to proceed are classified as photochemical reactions. Photochemical reactions involve the absorption of light energy to initiate a chemical reaction. Combustion reactions involve the rapid combination of a substance with oxygen, endothermic reactions absorb heat from the surroundings, and double displacement reactions involve the exchange of ions between two compounds. Therefore, the correct term for reactions requiring light energy is 'photochemical reactions,' making option C the correct answer.

4. What is the major difference between somatic and germline mutations?

Correct answer: D

Rationale: The major difference between somatic and germline mutations is that germline mutations are usually inherited and can be passed on to offspring, while somatic mutations occur in non-reproductive cells and only affect the individual in which they occur. This means that germline mutations have the potential to be present in future generations, while somatic mutations do not.

5. Which structure is the largest part of the airway?

Correct answer: D

Rationale: The correct answer is the trachea. The trachea is the largest part of the airway and serves as the main passageway for air to enter and exit the lungs. It connects the larynx to the bronchi and is an essential component of the respiratory system. The alveoli, although crucial for gas exchange, are tiny air sacs in the lungs and not the largest part of the airway. Bronchi and bronchioles are smaller airway passages that branch off from the trachea, making them smaller in size compared to the trachea.

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