ATI RN
Exam 4 Psychology
1. Which part of your brain is active when you get cues about being hungry, thirsty, or sleepy?
- A. Hippocampus
- B. Thalamus
- C. Hypothalamus
- D. Amygdala
Correct answer: C
Rationale: The correct answer is the Hypothalamus (Choice C). The hypothalamus plays a crucial role in regulating basic bodily functions such as hunger, thirst, and sleep. It receives cues related to these needs and helps to maintain homeostasis in the body. The Hippocampus (Choice A) is primarily involved in memory formation and spatial navigation, not in regulating physiological needs. The Thalamus (Choice B) acts as a relay station for sensory information but is not the main center for hunger, thirst, or sleep regulation. The Amygdala (Choice D) is more associated with emotions, particularly fear and pleasure, rather than physiological needs like hunger, thirst, or sleep.
2. Albert has brown eyes, even though one of his biological parents has blue eyes. Genes for blue eyes are part of Albert's ___.
- A. Phenotype
- B. Zygote
- C. Genotype
- D. Environment
Correct answer: C
Rationale: Albert's genotype refers to the genetic makeup inherited from his parents, which includes the genes for blue eyes. The phenotype, on the other hand, is the observable trait, in this case, brown eyes. Therefore, the correct answer is C. Choice A (Phenotype) is incorrect as it refers to the observable characteristics, not the genetic information. Choice B (Zygote) is incorrect as it refers to the initial stage of a developing organism. Choice D (Environment) is incorrect as it does not directly determine eye color.
3. 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.
4. Distinguish between assimilation and accommodation.
- A. Assimilation refers to adjusting our mental frameworks to incorporate new information.
- B. Assimilation is when new experiences are interpreted in terms of existing schemas.
- C. Assimilation is adapting our behaviors to match societal norms.
- D. Assimilation and accommodation are unrelated to cognitive development.
Correct answer: B
Rationale: The correct answer is B. Assimilation is when new experiences are interpreted in terms of existing schemas, meaning individuals try to fit new information into their pre-existing understanding of the world. Accommodation, on the other hand, involves adjusting our schemas to fit new information, which means changing our existing mental frameworks when new information doesn't fit. Choice A is incorrect because it describes accommodation rather than assimilation. Choice C is incorrect as it confuses assimilation with social adaptation. Choice D is incorrect as assimilation and accommodation are fundamental processes in cognitive development, as described by Piaget.
5. During conception, the 23 unpaired chromosomes in the ovum and sperm combine to form 23 pairs in an entirely new cell called the?
- A. Embryo
- B. DNA
- C. Fetus
- D. Zygote
Correct answer: D
Rationale: The correct answer is D, Zygote. A zygote is formed when the 23 chromosomes from the ovum and sperm combine during conception. It is the initial cell formed and marks the beginning of a new organism. Choice A, Embryo, is incorrect as an embryo is formed later in the development process. Choice B, DNA, is incorrect as DNA is the genetic material within the chromosomes but is not the name of the new cell formed after fertilization. Choice C, Fetus, is incorrect as a fetus is the stage of prenatal development that occurs well after the zygote stage.
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