Select the organ, indicated in the diagram, that is most closely associated with the statement. This organ stores bile.

Correct Answer: D

Rationale: The gall bladder (commonly structure 5 in digestive diagrams) stores bile produced by the liver until needed in the small intestine. Other structures (e.g., stomach, pancreas) do not store bile.

Correct Answer: B

Rationale: Digested nutrients are absorbed into the bloodstream via blood vessels in the small intestine's villi, making B correct. The gullet doesn't absorb, lungs are respiratory, and large intestine absorbs water, not nutrients into blood.

Correct Answer: A

Rationale: Bile from the gallbladder emulsifies fats, breaking them into smaller droplets, making A correct; lipase digests fats, not emulsifies them.

Correct Answer: B

Rationale: Insulin promotes glucose uptake by cells, lowering blood levels, making B correct.

Correct Answer: D

Rationale: Trypsin functions best at neutral to basic pH (around 7-8) in the small intestine, making D correct.