ATI RN
Psychology 2301 Exam 1
1. Normal human cells have ________.
- A. twenty-two chromosome pairs and one pair of sex chromosomes.
- B. twenty-one trisomy chromosome pairs, one autosomal pair, and one pair of sex chromosomes.
- C. twenty-one chromosome pairs and two trisomy chromosome pairs.
- D. twenty-three chromosome pairs.
Correct answer: A
Rationale: The correct answer is A. Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This adds up to a total of 46 chromosomes. Choice B is incorrect as it mentions twenty-one trisomy chromosome pairs, which is not a characteristic of normal human cells. Choice C is also incorrect as it states twenty-one chromosome pairs and two trisomy chromosome pairs, which is not accurate for normal human cells. Choice D is incorrect as it mentions twenty-three chromosome pairs, which is not the correct number for normal human cells.
2. Which of the following explanations for the relationship between SES and abnormal behavior is not supported by the existing data?
- A. Low SES may cause abnormal behavior.
- B. Abnormal behavior is more likely to go untreated in those of low SES.
- C. Recovery from loss of a job may be more difficult for those exhibiting signs of mental illness.
- D. High SES may cause abnormal behavior.
Correct answer: D
Rationale: The correct answer is D because high SES as a cause for abnormal behavior is not supported by existing data. Abnormal behavior is often associated with factors like stress, trauma, genetics, or environmental influences. High SES is not a known cause of abnormal behavior. Choices A, B, and C are more plausible explanations: Low SES may lead to limited access to mental health care, untreated abnormal behavior due to financial constraints, and difficulties in coping with mental health issues after job loss, respectively.
3. During which period of psychosexual development does a child become preoccupied with the development of skills and activities?
- A. Genital
- B. Phallic
- C. Latency
- D. Pubertal
Correct answer: C
Rationale: The correct answer is C, Latency. In the Latency stage of psychosexual development, which occurs from around age 6 to puberty, children are focused on developing skills and engaging in activities rather than exploring sexuality. This period is characterized by the suppression of sexual impulses and the emphasis on social and intellectual pursuits. Choice A, Genital, refers to the final stage of psychosexual development in Freud's theory where individuals reach sexual maturity. Choice B, Phallic, pertains to the stage where children become aware of anatomical differences between boys and girls and develop unconscious sexual desires for the opposite-sex parent. Choice D, Pubertal, is not a recognized stage in Freud's psychosexual development theory.
4. Etiology refers to ________
- A. a condition that tends to maintain maladaptive behavior.
- B. the causal pattern of a disorder.
- C. a predisposition toward developing a disorder.
- D. a condition that makes it less likely a person will experience the negative consequences of stress.
Correct answer: B
Rationale: Etiology refers to the causal pattern of a disorder, explaining the factors contributing to the development of a specific condition. Choice A is incorrect as it describes a condition that maintains maladaptive behavior, which is not the definition of etiology. Choice C is incorrect as it refers to a predisposition, which is more related to risk factors rather than the cause itself. Choice D is incorrect as it discusses a condition that reduces the negative consequences of stress, which is not directly related to the cause of a disorder.
5. Where is the site of chemical communication in the brain?
- A. Neuron
- B. Synapse
- C. Axon
- D. Dendrite
Correct answer: B
Rationale: The correct answer is B: Synapse. The synapse is the site where chemical communication occurs between neurons. Neurotransmitters are released from the axon terminal of one neuron, cross the synaptic cleft, and bind to receptors on the dendrites of the next neuron. Choice A, Neuron, is incorrect as it refers to the entire nerve cell. Choices C and D, Axon and Dendrite, are also incorrect as they are specific parts of a neuron and not the primary site of chemical communication.
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