Name ________________________
Hormones and the Endocrine System Worksheet
The Body’s Activity Are Coordinated
Mark each statement below T if it is true or F if it is false.
______ 1. Hormones are substances secreted by cells that act to regulate the activities of other cells in the
body.
______ 2. Hormones are always carried in the bloodstream from one cell to another.
______ 3. A hormone carries one signal that has the same effect in all of the cells that receive the signal.
______ 4. Hormones coordinate the production, use and storage of energy.
______ 5. Hormones do not react to stimuli from outside the body.
Hormones are made in Certain Organs and Tissues
Read each question, and write your answer in the space provided.
6. What are the differences between endocrine glands and exocrine glands?
7. Why are neurotransmitters not considered hormones?
8. Distinguish between the hormone epinephrine and the neurotransmitter epinephrine.
9. What are neuropeptides?
10. What are prostaglandins, and what is their function?
Hormones Act on Specific Cells
Complete each statement by underlining the correct term or phrase in the brackets.
1. A [target / receptor] cell is a specific cell on which a hormone acts.
2. A receptor is a [protein / fatty acid] to which a molecule binds.
3. Amino-acid-based hormones are generally [water / fat] soluble.
4. The body makes steroid hormones from [cholesterol / proteins].
