ATI TEAS 7
Practice Science TEAS Test
1. Which of the following processes describes the conversion of glucose to pyruvic acid during glycolysis?
- A. Glycogenesis
- B. Glycolysis
- C. Glycogenolysis
- D. Gluconeogenesis
Correct answer: B
Rationale: The correct answer is B: Glycolysis. Glycolysis is the metabolic pathway where glucose is broken down to produce pyruvic acid and ATP, generating energy in the form of ATP. Glycogenesis (choice A) is the process of glycogen synthesis, Glycogenolysis (choice C) is the breakdown of glycogen to release glucose, and Gluconeogenesis (choice D) is the synthesis of glucose from non-carbohydrate sources. Therefore, during glycolysis, glucose is converted into pyruvic acid, which is a crucial step in energy production.
2. Which of the following is the complete subject of the following sentence? All of Shannon’s family and friends helped her to celebrate her 50th birthday at Café Sorrento.
- A. Family and friends
- B. All
- C. All of Shannon’s family and friends
- D. Shannon’s family and friends
Correct answer: C
Rationale: The complete subject in the sentence is 'All of Shannon’s family and friends.' This phrase encompasses the entirety of the group involved in celebrating Shannon’s 50th birthday at Café Sorrento. It includes both her family and friends collectively, highlighting the full extent of individuals who participated in the celebration. The term 'All of Shannon’s family and friends' is essential for providing a comprehensive subject that covers everyone who contributed to making the event special. Choices A, B, and D are incorrect because they do not capture the complete scope of individuals involved in the birthday celebration, unlike choice C which encompasses both Shannon’s family and friends.
3. Which part of the brain controls the coordination of muscle movements?
- A. Cerebrum
- B. Cerebellum
- C. Thalamus
- D. Medulla oblongata
Correct answer: B
Rationale: The cerebellum is the part of the brain responsible for controlling the coordination of muscle movements and helping to maintain balance. It receives information from the sensory systems, the spinal cord, and other parts of the brain to regulate voluntary movements. The cerebrum (choice A) is primarily responsible for higher brain functions such as thinking and decision-making, not muscle coordination. The thalamus (choice C) acts as a relay station for sensory information but is not directly involved in muscle coordination. The medulla oblongata (choice D) is responsible for regulating vital autonomic functions like breathing and heart rate, rather than muscle coordination.
4. What is the difference between mitosis and meiosis?
- A. Mitosis produces haploid cells, while meiosis produces diploid cells
- B. Mitosis involves crossing over, while meiosis does not.
- C. Mitosis results in four daughter cells, while meiosis results in two
- D. Mitosis is responsible for sexual reproduction, while meiosis is responsible for asexual reproduction.
Correct answer: C
Rationale: - Mitosis is a type of cell division that results in two identical daughter cells with the same number of chromosomes as the parent cell. Therefore, mitosis results in two daughter cells. - Meiosis is a type of cell division that results in four daughter cells, each with half the number of chromosomes as the parent cell. This reduction in chromosome number is essential for sexual reproduction. - Option A is incorrect because mitosis produces diploid cells (cells with the same number of chromosomes as the parent cell), while meiosis produces haploid cells (cells with half the number of chromosomes as the parent cell). - Option B is incorrect because crossing over, the exchange of genetic material between homologous chromosomes, occurs during meiosis and not during mitosis. - Option D is incorrect because mitosis is not responsible for sexual reproduction; it is a process of asexual reproduction and
5. During micturition, the process involves a combination of:
- A. Gravity alone
- B. Voluntary muscle contractions only
- C. Involuntary muscle contractions only
- D. Both voluntary and involuntary muscle contractions
Correct answer: D
Rationale: During micturition, which is the process of urination, both voluntary and involuntary muscle contractions are involved. Voluntary muscle contractions include the relaxation of the external urethral sphincter, allowing the release of urine, while involuntary muscle contractions involve the detrusor muscle in the bladder contracting to expel urine. Choices A, B, and C are incorrect because micturition is not solely dependent on gravity, voluntary muscle contractions, or involuntary muscle contractions alone. The correct answer is D as both types of muscle contractions are necessary for the complete process of urination.
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