ATI TEAS 7
ATI TEAS 7 science review Questions
Question 1 of 5
What is the process of converting lactic acid back into pyruvate called?
Correct Answer: C
Rationale: A) Glycolysis is the process of breaking down glucose into pyruvate. B) Gluconeogenesis is the process of synthesizing glucose from non-carbohydrate sources. C) The Cori cycle is the process by which lactic acid produced by anaerobic metabolism in muscles is transported to the liver and converted back into glucose or pyruvate. D) Oxidative phosphorylation is the process by which ATP is synthesized using energy derived from the transfer of electrons in the electron transport chain.
Question 2 of 5
During exercise, oxygen is used to convert glucose into energy for muscles. This process is called:
Correct Answer: A
Rationale: Aerobic respiration is the process by which cells use oxygen to convert glucose into energy. This process occurs in the mitochondria of cells and is the most efficient way to produce energy during exercise. Anaerobic respiration and glycolysis are alternative pathways for energy production when oxygen is limited, typically occurring during high-intensity exercise. Lactic acid fermentation, on the other hand, occurs in the absence of oxygen and leads to the production of lactic acid, causing muscle fatigue and soreness.
Question 3 of 5
What is the process of a fertilized egg attaching itself to the uterine lining called?
Correct Answer: B
Rationale: Implantation is the correct answer. It is the process in which a fertilized egg attaches itself to the uterine lining, where it will develop into an embryo and eventually a fetus. Ovulation, on the other hand, is the release of an egg from the ovary. Parturition refers to the process of giving birth, while menstruation is the shedding of the uterine lining if fertilization does not occur. Therefore, the process described in the question specifically pertains to implantation.
Question 4 of 5
What is the process of converting lactic acid back into pyruvate called?
Correct Answer: C
Rationale: A) Glycolysis is the process of breaking down glucose into pyruvate. B) Gluconeogenesis is the process of synthesizing glucose from non-carbohydrate sources. C) The Cori cycle is the process by which lactic acid produced by anaerobic metabolism in muscles is transported to the liver and converted back into glucose or pyruvate. D) Oxidative phosphorylation is the process by which ATP is synthesized using energy derived from the transfer of electrons in the electron transport chain.
Question 5 of 5
Electrons occupy specific energy levels around the nucleus, but not in fixed orbits. This concept is captured by the:
Correct Answer: B
Rationale: The correct answer is the Quantum mechanical model. Unlike the Bohr model with its defined electron paths, the quantum mechanical model uses probability distributions to describe electron locations within energy levels. Choice A, the Bohr model, describes fixed electron orbits, which is not in line with the concept of electron distribution in energy levels. Choices C and D, Lewis structure and Octet rule respectively, are not related to the description of electron distribution around the nucleus in energy levels, making them incorrect answers.
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