Endocrine System: Mechanisms of Hormones & Target Cells

Flashcard
•
Science
•
11th Grade
•
Hard
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12 questions
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1.
FLASHCARD QUESTION
Front
Which of these is NOT a way in which hormones affect target cells?
- changing the color of the cell
- Alter plasma membrane permeability of membrane potential by opening or closing ion channels
- Induce secretory activity
- Activate or deactivate enzyme systems
Back
changing the color of the cell
2.
FLASHCARD QUESTION
Front
Function of hormones in the body? Options: Regulating metabolism, Changing the DNA sequence, Producing red blood cells, Generating nerve impulses
Back
Regulating metabolism
3.
FLASHCARD QUESTION
Front
What is a common effect of hormones on target cells?
Back
Altering gene expression
4.
FLASHCARD QUESTION
Front
What term describes the process of a hormone causing target cells to form more receptors?
Back
Up regulation
5.
FLASHCARD QUESTION
Front
Which factor does NOT affect target cell activation? Options: pH levels of hormone, Blood levels of the hormone, relative number of receptors on target cell, affinity of binding between receptor and hormone
Back
pH levels of hormone
6.
FLASHCARD QUESTION
Front
How are hormones typically removed from the blood?
Back
Metabolism by the liver and excretion by the kidneys
7.
FLASHCARD QUESTION
Front
What is the half-life of a hormone?
Back
The time required for a hormone’s blood level to decrease by half
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