The number of ATP molecules produced from one glucose molecule during aerobic respiration is approximately: MCQ with Answer and Explanation

Explanation:
Amylase (ptyalin in saliva, pancreatic amylase in intestine) hydrolyzes starch (a polysaccharide) into maltose (a disaccharide) and dextrins. Lactase breaks lactose, lipase digests lipids, protease digests proteins. Salivary amylase works at neutral pH, pancreatic amylase in the small intestine. Maltase then breaks maltose into two glucose molecules.

Explanation:
Cross-pollination (allogamy) involves transfer between genetically different plants of the same species, promoting genetic variation. Self-pollination occurs within the same flower or plant. Fertilization is gamete fusion, dispersal is seed/fruit spread. Agents of cross-pollination include wind, insects, water, birds.

Explanation:
Actin (thin) and myosin (thick) filaments slide past each other during contraction, powered by ATP. Collagen is structural, hemoglobin transports oxygen.