Biology

Question 1

A special iron-containing blood protein that binds easily to oxygen and gives blood its characteristic red color.

Answer 1

Hemoglobin

Question 2

Absorpsion

Answer 2

The movement of water, digested food, and other dissolved substances into the bloodstream.

Question 3

Tiny hair-like projections of the small intestine whose primary function is to absorb digested food.

Answer 3

Villi

Question 4

Signals the liver and muscles to remove glucose from the blood and store it as glycogen.

Answer 4

Insulin