Chapter 13.1 - The Endocrine System, Part 1

What is the primary function of the endocrine system?

• To secrete hormones inside the body

• To pump blood

• To secrete sweat outside the body

• To digest food

Which of the following is an example of a negative feedback mechanism?

• Eating when hungry

• Sweating when hot

• Putting on a jacket when cold

• Running when scared

How do steroid hormones typically enter a cell?

• Through receptor proteins on the cell surface

• By being transported by blood cells

• By dissolving through the cell membrane

• Through active transport

What is the role of a receptor protein in non-steroid hormone action?

• To dissolve the hormone

• To bind with the hormone on the cell surface

• To transport the hormone through the bloodstream

• To break down the hormone

Which gland is primarily responsible for controlling the endocrine system?

• Adrenal gland

• Pancreas

• Thyroid gland

• Hypothalamus