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WorksheetsHormone Action Mechanism
Total questions: 13
Worksheet time: 10mins
In eukaryotic cells, which is a second messenger that is produced as a response to an external signal such as a hormone?
cyclic AMP
glycogen
glucose
epinephrine
Receptor proteins can be found in the
nucleus
cytosol
cell membrane
all of the above
A G-protien coupled receptor becomes activated when
GTP displaces GDP
a signaling molecule binds to the receptor
G protein releases its receptor
once the enzyme is activated
Type of hormone that causes target cell to make protein
steroid hormone
amino acid hormone (non-steroid hormone)
What occurs once a steroid hormone diffuses through a target cell membrane?
It binds to an intracellular receptor
It enters the nucleus to alter gene expression
It enters the nucleus to alter gene repression
It activates an intracellular protein
It inactivates an intracellular protein
Which of the following is TRUE of a non-steroid hormone action mechanism?
Hormone binds with a specific receptor on the cell membrane
Hormone binds with the receptor in the cytoplasm
Hormone crosses the cell membrane
mRNA is produced
Hormones travel through the blood and encounter many cells. How do they affect ONLY target cells?
Target cells have receptors that match up with the hormone
Target cells send out signals that attach to hormones and draw them to the cell
Target cells have cell membranes with a different composition
Magic!
What is the name of the system that regulates hormones?
Endocrine System
Circulatory System
Digestive System
Nervous System
How do hormones travel to their target organ?
In the digestive system
In the lymphatic system
In the airways
In the blood
A hormone is
a chemical substance produced by a gland and carried by the lymph.
an enzyme produced by a gland and carried by the blood.
a chemical substance produced by an organ and carried by the blood.
a chemical substance produced by a gland and carried by the blood.
