what is the process of breaking down glucose into pyruvate called

ATI TEAS 7

TEAS 7 science quizlet

1. What is the process of breaking down glucose into pyruvate called?

A. Glycolysis
B. Gluconeogenesis
C. Krebs cycle
D. Oxidative phosphorylation

Correct answer: A

Rationale: A) Glycolysis is the process of breaking down glucose into pyruvate. This occurs in the cytoplasm of cells and is the first step in cellular respiration. B) Gluconeogenesis is the process of synthesizing glucose from non-carbohydrate sources, such as amino acids or glycerol, and is the opposite of glycolysis. C) The Krebs cycle, also known as the citric acid cycle, is a series of chemical reactions that occur in the mitochondria and is involved in the oxidation of acetyl-CoA to produce ATP and other energy carriers. D) Oxidative phosphorylation is the final stage of cellular respiration where ATP is produced through the transfer of electrons in the electron transport chain.

2. How many milligrams (mg) are equal to 1 gram?

A. 100 mg
B. 1,000 mg
C. 1 mg
D. 10,000 mg

Correct answer: B

Rationale: To convert grams to milligrams, you need to multiply by 1,000 because there are 1,000 milligrams in 1 gram. Therefore, 1 gram × 1,000 = 1,000 milligrams. Choice A (100 mg) is incorrect as it represents 0.1 grams, not 1 gram. Choice C (1 mg) is incorrect as it represents a fraction of a gram. Choice D (10,000 mg) is incorrect as it is 10 times more than the correct conversion.

3. During REM sleep, which type of brain wave activity is often seen and associated with dreaming?

A. Delta waves
B. Alpha waves
C. Beta waves
D. Theta waves

Correct answer: D

Rationale: Theta waves are the correct answer as they are often seen during REM (rapid eye movement) sleep, the stage of sleep closely related to dreaming. Theta waves have a frequency of 4-7 Hz and are typically present during deep relaxation, meditation, and light sleep stages. Delta waves (choice A) are associated with deep sleep stages, not REM sleep. Alpha waves (choice B) are present during wakefulness and relaxation but not predominantly during REM sleep. Beta waves (choice C) are associated with alertness, problem-solving, and active thinking, not specifically with REM sleep or dreaming.

4. Which of the following sentences from the passage includes a fact?

A. With a running time of 98 minutes, the pacing is quick and efficient.'
B. You can see the toll this stalking experience has had on her every twitch of her eye and clench of her jaw.'
C. The close-up shots feel claustrophobic like the perspective is skewed.'
D. This is a tense thrill ride that will not disappoint fans of Joy Taylor or this genre in general.'

Correct answer: A

Rationale: The correct answer is A. The sentence 'With a running time of 98 minutes, the pacing is quick and efficient' includes a fact, which is the running time of the movie. This statement provides a concrete, verifiable detail from the passage. Choice B describes a subjective observation about the character's behavior, not a fact. Choice C expresses an opinion about the visual effect of the close-up shots, not a factual detail. Choice D offers an opinion about the movie's appeal to fans of a specific genre, rather than presenting a fact from the passage.

5. Which of the following describes a responsibility of the integumentary system?

A. Distributing vital substances, such as nutrients, throughout the body.
B. Blocking pathogens that cause disease.
C. Sending leaked fluids from the cardiovascular system back to the blood vessels.
D. Storing bodily hormones that influence gender traits.

Correct answer: B

Rationale: The correct responsibility of the integumentary system is to act as a barrier that blocks pathogens from entering the body, thus helping to prevent diseases and infections. This function serves as the first line of defense for the body against external threats. Choices A, C, and D are incorrect. Choice A is a function of the circulatory system, not the integumentary system. Choice C relates to the lymphatic system, not the integumentary system. Choice D involves the endocrine system, not the integumentary system.