Worksheets1. Hormone Action and Control
Total questions: 19
Worksheet time: 18mins
Which system produces chemical messengers known as hormones?
nervous system
immune system
endocrine system
cardiovascular system
These are chemical substances secreted by endocrine cells.
lipids
cytoplasm
hormones
sugars
Hormones are chemically categorised into which two types?
hydrophilic
hydrophobic
messengers
target cells
Which hormones bind to receptors on the plasma membrane?
hydrophilic
hydrophobic
amino acids
steroid hormones
Water-soluble hormones, such as proteins and peptide hormones, activate target cells using ________.
direct gene activation
the second-messenger system
steroid hormone action
diffusion
Which hormones cross the phospholipid membrane to reach the receptors in the nucleus of the cell?
hydrophilic
hydrophobic
amino acids
steroid hormones
How would you classify a hormone that is made from cholesterol, such as a sex hormone?
steroid hormone
amine hormone
peptide hormone
protein hormone
In the second-messenger system, what serves as the first messenger?
cyclic AMP (cAMP)
DNA
ATP
the hormone
Being lipid soluble, steroids can do all the following EXCEPT ________.
diffuse through the plasma membranes of target cells
catalyze a reaction that produces cyclic AMP (cAMP)
enter the nucleus
bind to receptor proteins within the nucleus
