The instructor is assessing a student's understanding of digestive enzymes. Which statement by the student indicates a correct understanding of the salivary amylase enzyme?

"It is an enzyme released into the duodenum."

"It is an enzyme that breaks down the fats in breast milk."

"It is an enzyme that initiates the breakdown of carbohydrates."

"It is an enzyme that breaks down proteins in the stomach."

Answer and Explanation

The Correct Answer is C

A. "It is an enzyme released into the duodenum.": Salivary amylase is secreted into the mouth; pancreatic amylase is released into the duodenum.
B. "It is an enzyme that breaks down the fats in breast milk.": Salivary amylase digests starches (carbohydrates); lingual lipase (and gastric/pancreatic lipases) act on fats.
C. "It is an enzyme that initiates the breakdown of carbohydrates.": Salivary amylase begins starch digestion in the oral cavity by cleaving polysaccharides into smaller sugars.
D. "It is an enzyme that breaks down proteins in the stomach.": Proteolysis in the stomach is primarily by pepsin (a gastric enzyme), not salivary amylase.

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Correct Answer is B

Explanation

A. Spermatogenesis and oogenesis both contribute to the maturation of the embryo:gametogenesis produces gametes for fertilization; embryonic maturation occurs after fertilization.
B. Spermatogenesis produces mature sperm for fertilization, while oogenesis generates mature ova for fertilization: spermatogenesis and oogenesis are the gamete-producing processes that supply sperm and ova needed for sexual reproduction.
C. Spermatogenesis is responsible for the development of the uterine lining, while oogenesis produces hormones to regulate the menstrual cycle:uterine lining development is driven by ovarian hormones (estrogen/progesterone); gametogenesis itself does not directly build the endometrium.
D. Spermatogenesis and oogenesis are sex hormones necessary for reproductive health: spermatogenesis and oogenesis are cellular processes (gamete production), not hormones.

A. Tubular secretion involves the reabsorption of substances from the renal tubules into the peritubular capillaries. B. Tubular secretion is a passive process that occurs in the glomerulus, allowing the filtration of waste products. C. Tubular secretion is the movement of substances from the blood in the peritubular capillaries into the renal tubules. D. Tubular secretion primarily occurs in the Bowman's capsule, facilitating the selective reabsorption of essential nutrients.

Correct Answer is C

Explanation

A. Tubular secretion involves the reabsorption of substances from the renal tubules into the peritubular capillaries.: That describes reabsorption, the opposite of secretion.
B. Tubular secretion is a passive process that occurs in the glomerulus, allowing the filtration of waste products.: Filtration in the glomerulus is a separate, largely passive process; tubular secretion is an active transport process occurring in the renal tubules.
C. Tubular secretion is the movement of substances from the blood in the peritubular capillaries into the renal tubules.: This correctly describes tubular secretion (e.g., H⁺, K⁺, drugs) .
D. Tubular secretion primarily occurs in the Bowman's capsule, facilitating the selective reabsorption of essential nutrients.: Bowman's capsule is the site of filtration, not tubular secretion; selective reabsorption occurs later in the tubules.

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The instructor is assessing a student's understanding of digestive enzymes. Which statement by the student indicates a correct understanding of the salivary amylase enzyme?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A biology instructor is assessing the understanding of reproductive processes among a group of students. Which statement accurately describes the primary purpose of spermatogenesis in males and oogenesis in females?

Correct Answer is B

Explanation

A nurse is caring for a client with impaired renal function and is reviewing the processes involved in urine formation. Which of the following statements best describes the process of tubular secretion in the nephron?

Correct Answer is C

Explanation

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