What is an example of mechanical digestion?
Mastication
Absorption
Catabolism
Anabolism
The Correct Answer is A
A. Mastication: Mechanical digestion involves physically breaking down food into smaller pieces, and mastication is a prime example of this.
B. Absorption: This is the process by which nutrients pass from the digestive system into the bloodstream, not a form of mechanical digestion.
C. Catabolism: Catabolism refers to chemical processes that break down molecules within the body, not mechanical digestion.
D. Anabolism: This refers to the synthesis of complex molecules from simpler ones, not related to the physical breakdown of food.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Subclavian duct: There is no specific "subclavian duct" for lymph drainage; lymphatic fluid drains into the subclavian veins.
B. Thoracic duct: The thoracic duct drains lymph from the lower limbs and the left side of the body, returning it to the circulatory system at the junction of the left subclavian and internal jugular veins.
C. Left lymphatic duct: The thoracic duct is often referred to as the left lymphatic duct but is not limited to just left drainage.
D. Right lymphatic duct: The right lymphatic duct drains lymph from the right upper quadrant of the body but does not drain lymph from the lower limbs.
Correct Answer is C
Explanation
A. Reabsorption of potassium ions: Potassium reabsorption occurs in the nephron, not in the bladder.
B. Secretion of hormones: The bladder does not secrete hormones; its primary function is to store urine.
C. Storage of urine: The bladder is responsible for storing urine before it is excreted from the body.
D. Filtration of urine: Filtration occurs in the kidneys, specifically in the glomerulus, not in the bladder.
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