Which of the following enzymes breaks down fats in the digestive system?
Lipase
Trypsin
Pepsin
Amylase
The Correct Answer is A
A. Lipase: Pancreatic and gastric lipases hydrolyze triglycerides into fatty acids and monoglycerides, enabling fat digestion.
B. Trypsin: A pancreatic protease that breaks peptide bonds in proteins, not fats.
C. Pepsin: A stomach enzyme that begins protein digestion by cleaving peptide bonds, not responsible for fat breakdown.
D. Amylase: An enzyme (salivary and pancreatic) that digests starches (carbohydrates), not lipids.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Somatic: The somatic nervous system controls voluntary skeletal muscle movements and does not produce decreases in heart rate or blood pressure.
B. Afferent: Afferent pathways carry sensory information to the CNS; they are not a motor division that directly lowers heart rate and blood pressure.
C. Sympathetic: Sympathetic activation raises heart rate and blood pressure as part of the fight-or-flight response.
D. Parasympathetic: Parasympathetic (vagal) activation slows SA node firing and reduces heart rate, and can lower blood pressure indirectly by decreasing cardiac output.
Correct Answer is D
Explanation
A. Connective tissue that connects bone to bone: This describes a ligament, which links bones at a joint, not a tendon.
B. Connective tissue that covers muscles: Muscle coverings are layers like the epimysium or fascia; tendons are not the general covering of muscle.
C. Connective tissue that covers nerves: Nerves are wrapped by sheaths such as the epineurium and perineurium; tendons serve a different function.
D. Connective tissue that connects muscle to bone: Tendons are dense, collagen-rich structures that transmit the force of muscle contraction to bone.
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