Multiple choice

Which of the following regulates the blood glucose level?

  1. Insulin

  2. Iodine

  3. Hemoglobin

  4. Glycogen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Insulin regulates blood glucose by promoting cellular glucose uptake and storage. Iodine is for thyroid function, hemoglobin carries oxygen, and glycogen is stored glucose (not a regulator). Insulin lowers blood sugar, while glucagon raises it - together they maintain glucose homeostasis.

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