ATI TEAS 7
Biology
1. Describe the ethical considerations surrounding the potential use of CRISPR-Cas9 technology in humans.
- A. Concerns about unintended consequences on the genome and potential off-target effects.
- B. Debates on modifying the human germline and potential eugenic implications.
- C. Accessibility and affordability of the technology, ensuring equitable access to benefits.
- D. Risks associated with CRISPR-Cas9 editing germline cells and potential long-term impacts.
Correct answer: B
Rationale: CRISPR-Cas9's ability to precisely edit germline cells raises ethical dilemmas about modifying the human gene pool. This includes concerns about eugenics, unintended consequences, and the long-term impact on future generations.
2. What is the term for the first exposure to a specific pathogen, leading to the development of an initial immune response?
- A. Primary immune response
- B. Secondary immune response
- C. Hypersensitivity reaction
- D. Immunological tolerance
Correct answer: A
Rationale: The correct answer is A: 'Primary immune response.' The primary immune response refers to the initial encounter with a specific pathogen, which triggers the immune system to respond by producing antibodies and memory cells. This process lays the foundation for the secondary immune response, which occurs upon subsequent exposure to the same pathogen. The primary immune response is characterized by the lag time in antibody production as the immune system is mobilized to combat the new threat. In contrast, the secondary immune response is faster and more robust due to the presence of memory cells from the primary response. Hypersensitivity reactions involve an exaggerated immune response to an antigen, while immunological tolerance refers to the immune system's ability to recognize self from non-self to prevent autoimmunity.
3. What is the part of the nervous system responsible for the “fight-or-flight†response?
- A. Somatic nervous system
- B. Parasympathetic nervous system
- C. Sympathetic nervous system
- D. Enteric nervous system
Correct answer: C
Rationale: The correct answer is C: Sympathetic nervous system. The sympathetic nervous system is responsible for the "fight-or-flight" response, which is the body's automatic response to perceived threat or danger. When activated, this system increases heart rate, dilates airways, and redirects blood flow to muscles to prepare the body for action. The somatic nervous system (A) controls voluntary movements, the parasympathetic nervous system (B) is responsible for the "rest and digest" response, and the enteric nervous system (D) regulates the digestive system. Therefore, the sympathetic nervous system is the specific part of the nervous system involved in the fight-or-flight response.
4. Which of the following is the best guarantee that the patient’s priority needs are met?
- A. Checking with the relative of the patient
- B. Preparing a nursing care plan in collaboration with the patient
- C. Consulting with the physician
- D. Coordinating with other members of the team
Correct answer: B
Rationale: Preparing a nursing care plan in collaboration with the patient is the best guarantee that the patient's priority needs are met because it involves actively involving the patient in their own care. This approach ensures that the patient's preferences, concerns, and priorities are taken into account when planning their care. Checking with the relative of the patient, consulting with the physician, and coordinating with other team members are important aspects of patient care, but collaborating with the patient directly ensures a patient-centered approach that addresses their individual needs and preferences.
5. What is the main argument presented in favor of UBI?
- A. It would boost the economy by increasing consumer spending and stimulating businesses.
- B. It would guarantee financial stability and improve mental health for all citizens.
- C. It would address ethical concerns about income inequality and promote social justice.
- D. It would decrease crime rates and improve public safety by reducing poverty and desperation.
Correct answer: C
Rationale: The passage emphasizes UBI's potential to alleviate poverty and reduce inequality, aligning with C.
6. Which sentence uses parentheses correctly?
- A. The suspect was seen driving a red car (a witness reported).
- B. The movie (released in 2022) received critical acclaim.
- C. The restaurant offers a variety of dishes (including vegetarian options).
- D. All participants (must register by Friday) will receive a free gift.
Correct answer: B
Rationale: Parentheses are used for non-essential information that clarifies or adds detail. Option (a) is unnecessary and disrupts the flow of the sentence.
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