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 D
Explanation
A. Eosinophil: Eosinophils are involved in allergic reactions and parasitic infections, but they are not responsible for B and T cell functions.
B. Basophil: Basophils are involved in inflammatory responses, particularly releasing histamine, but do not include B or T cells.
C. Monocyte: Monocytes are large white blood cells that develop into macrophages but do not include B or T cells.
D. Lymphocyte: Lymphocytes are a subtype of white blood cells that include B cells (which produce antibodies) and T cells (which are involved in cell-mediated immunity), making this the correct answer.
Correct Answer is B
Explanation
A. Increased surface tension: This would decrease ventilation as it increases the force needed to expand the lungs.
B. Increased lung compliance: Compliance refers to how easily the lungs can expand. Increased compliance makes it easier for the lungs to inflate, thereby increasing ventilation.
C. Fewer alveolar sacs: Having fewer alveolar sacs reduces the surface area for gas exchange, which would likely reduce ventilation efficiency.
D. More airway resistance: Increased airway resistance makes it harder to breathe, so it would reduce ventilation rather than increase it.
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