Fact 1: Insulin helps cells take up glucose from the blood. Fact 2: For example, insulin is a protein hormone. Given the two facts above, what helps cells take up glucose from the blood?
Available choices: [i] Chemical energy [ii] Veins and arteries. [iii] layers of fat [iv] sweating [v] protein hormones [vi] aqueous solution [vii] oxidation reaction [viii] pancreas
Answer:
[v]