Where does HDL in the body come from?
The small intestine
The pancreas
The liver
The gallbladder
The Correct Answer is C
A. The small intestine absorbs lipids but does not produce HDL (high-density lipoprotein).
B. The pancreas produces enzymes and hormones, but it does not produce HDL.
C. The liver is the primary organ responsible for the synthesis of HDL. HDL is involved in reverse cholesterol transport, carrying cholesterol from tissues back to the liver.
D. The gallbladder stores and concentrates bile but does not produce HDL.
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Correct Answer is A
Explanation
A. Renal corpuscle: Blood plasma is filtered in the renal corpuscle, which includes the glomerulus and Bowman's capsule.
B. Renal capsule: The renal capsule is the outer protective layer of the kidney and does not filter blood plasma.
C. Renal tubule: The renal tubule is involved in reabsorption and secretion, not in the initial filtration of blood plasma.
D. Renal column: The renal column is a structural part of the kidney, not involved in filtering blood plasma.
Correct Answer is D
Explanation
A. Oral cavity is involved in chemical digestion through the action of salivary enzymes like amylase.
B. Stomach is involved in chemical digestion with gastric acids and pepsin.
C. Small intestine is a major site for chemical digestion and nutrient absorption.
D. Large intestine is primarily involved in the absorption of water and electrolytes and the formation of feces. It is less involved in chemical digestion compared to the other organs listed.