Which hormone, produced by the alpha cells of the pancreas, raises blood glucose levels? MCQ with Answer and Explanation

Explanation:
Bile does not contain digestive enzymes; it contains bile salts that emulsify fats, increasing surface area for lipase action. Thus, A is false, R is true.

Explanation:
The cell membrane (plasma membrane) is primarily composed of a phospholipid bilayer with embedded proteins, following the fluid mosaic model. The cytoskeleton is a network of protein filaments (microtubules, microfilaments, intermediate filaments) that provides structural support, shape, and facilitates intracellular transport. Ribosomes are the site of protein synthesis, not lipid synthesis (which occurs in the smooth ER). Thus, statements 1 and 3 are correct.

Explanation:
Penicillin targets the transpeptidase enzyme, blocking peptidoglycan cross-linking, leading to cell lysis. This is the mechanism, so R correctly explains A.