WorksheetsEndocrine System Introduction
Total questions: 19
Worksheet time: 6mins
Communication through gap junctions.
Endocrine Communication
Direct Communication
Paracrine Communication
Autocrine Communication
Communication through extracellular fluids back to original cell.
Endocrine Communication
Direct Communication
Paracrine Communication
Autocrine Communication
Communication through extracellular fluids to nearby cells.
Endocrine Communication
Direct Communication
Paracrine Communication
Autocrine Communication
Communication through bloodstream to distant cells.
Endocrine Communication
Direct Communication
Paracrine Communication
Autocrine Communication
What is a difference between Nervous & Endocrine System regulation?
rely on release of chemicals that bind receptors on target cells
length of time of action
negative feedback mechanisms
homeostasis
Structural Class of Hormones that are smallest in size.
Lipid Derivatives
Peptide Hormones
Amino Acid Derivatives
Carbohydrate Derivatives
Which is NOT an amino acid derivative?
TSH
Thyroxine
Melatonin
Dopamine
Which is a Tryptophan derivative?
Thyroxine
Dopamine
Melatonin
Epinephrine
Peptide hormones that are 200 amino acids long + carbohydrate side chain
Eicosanoids
Glycoproteins
Short Polypeptides
Small Proteins
Which is a short polypeptide?
TSH
FSH
ADH
PRL
Which is NOT a steroid hormone?
calcitrol
cholesterol
prostaglandin
testosterone
Most freely circulating hormones remain active from ____ minutes to ____ hour(s).
1, 10
2, 1
20, 20
60, 200
Which hormones remain functional for several weeks?
Thyroid Hormones
Steroid Hormones
Both
Neither
Which is NOT a reason for Inactivation of a hormone?
Binds to receptor on target cell.
Broken down by kidney or liver.
Broken down when in contact with red blood cells.
Broken down by enzymes in blood.
Which is NOT a mechanism of action for Hormones?
Alter Genetic Activity
Alter the rate of Protein Synthesis
Change Membrane Permeability
Stops Mitotic activity
Non-lipid hormones require a link with a _______ in the plasma membrane and a ___________________ is released in to cell for action.
C protein, second messenger
G protein, water molecule
C protein, water molecule
G protein, second messenger
Which is NOT a common Second Messenger?
cAMP
cGMP
Ca+
Cl-
Thousands of second receptors release per 1 hormone attached to G protein in plasma membrane is called:
duplication
receptor cascade
amplification
hydration
Several types of second receptors release per 1 hormone attached to G protein in plasma membrane is called:
duplication
receptor cascade
amplification
hydration
