AP Biology (Mader), 11th Edition

Chapter 40: Hormones and Endocrine Systems

Pre-Test

1
The endocrine system regulates the activities of other organs by secreting chemical signals called _____.
A)antibodies
B)hormones
C)pheromones
D)enzymes
2
The defining difference between exocrine and endocrine glands is:
A)where their products are secreted.
B)their location.
C)their size.
D)the quantity and type of products secreted.
3
Steroid hormones are _____.
A)lipids
B)carbohydrates
C)nucleic acids
D)proteins
4
Peptide hormones bind to a receptor _____.
A)in the plasma membrane
B)inside the cytoplasm
C)inside the nucleus
5
All of the following are characteristic of a first messenger EXCEPT:
A)Never enters the cell
B)Directly sets the cell's metabolic machinery in motion
C)Activates a second messenger
D)Binds to plasma membrane receptor proteins
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.