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FINAL PHYSIOLOGY TEST
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  • PHYSIOLOGY

FINAL PHYSIOLOGY TEST Which statement is true of the three hormone classes? a. Steroid hormones can bind receptors on the cell surface, in the cytosol, or in the nucleus b. amino acid derived hormones only bind cell surface receptor c. peptide hormones can bind receptors on the cell surface...

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  • December 8, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • final physiology test which statement is true of

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FINAL PHYSIOLOGY TEST

Which statement is true of the three hormone classes?
a. Steroid hormones can bind receptors on the cell surface, in the cytosol, or in
the nucleus
b. amino acid derived hormones only bind cell surface receptor
c. peptide hormones can bind receptors on the cell surface, or in the nucleus
steroid hormones cant bind receptors on the cell surface, in the cytosol, or in the
nucleus
Muscle tissue is identifiable by its
a. gap junctions
b. striations
c. nuclei
striations
binding to its receptor sometimes produces a slow response and sometimes a
fast response
amino acid derivatives
binding to its receptor almost always produces a slow response
steroid
binding to its receptor produces a fast response
peptides
metabolic catalysts made of proteins are called:
enzymes
Allosteric activators and inhibitors modulate reactions by
changing the shape of the enzyme (protein) to make it active or inactive
What is the three letter code (short name) for cellular energy
ATP
Which of the 4 major classes of organic biomolecules we discussed has up to
three different folded structures
proteins
which of the following is accurately describes as "cell signaling molecules
(derived from arachidonic acid)"
a. eicosanoids
b. fats
c. steroids
d. phospholipids
eicosanoids
enzymes:
a. are metabolic catalysts
b. lower activation energy
c. are made of protein
d. all of the above
all of the above
The following are true of paracrine signals EXCEPT
a. paracrine signals are transmitted by hormones

,b. paracrine signals communicate with adjacent cells
c. autocrine signals are often also paracrine signals
paracrine signals are transmitted by hormones
Which of the following hormones would bind with a receptor inside the cell
a. steroid
b. catacholamine
c. peptide
steroid
cell signaling molecules (derived from arachidonic acid)
eicosanoids
made of triglycerides
fats
synthesized from cholesterol
steroids
composed of a hydrophilic head and a hydrophobic tail
phospholipids
are there more human or bacterial cells in your body
bacterial
which of the following is a characteristic of epithelial tissue
a. it is always multilayered
b. it is only found lining the body's external surfaces
c. it has tight cell to cell connections
it has tight cell to cell connections
Nervous tissue is specialized for ________ _________
electrical communication
a carbohydrate is
carbon + water in a 1:2:1 ratio
Lipids are all _____________
hydrophobic
Biomolecules are molecules of _______ ___________
biological importance
Name the four classes of biomolecules in the order listed in class
carbohydrate, lipids, proteins, nucleotides
As evolutionary distance ______ genetic similarity ______
increases; decreases
As evolutionary distance increases genetic relatedness
a. remains constant
b. increases
c. decreases
decreases
which of the following was not discussed as a characteristic of science
a. time-bound
b. consistent
c. predictive
d. testable
e. natural

, time-bound
The dishonest misrepresentation of a claim in order to acquire the legitimacy of
"science" is called
a. non-science
b. pseudo-science
pseudo-science
Amino Acids are the building blocks of
a. nucleic acids
b. lipids
c. proteins
proteins
Which statement about intracellular receptors is NOT true
a. binding of intracellular receptors can be accomplished by peptide hormones
b. binding of intracellular receptors typically triggers DNA transcription
c. AA derived hormones can bind intracellular receptors
a. binding of intracellular receptors can be accomplished by peptide hormones
Which is TRUE catecholamines
a. catecholamines are derived from tyrosine
b. catecholamines behave like steroid hormones
c. catecholamines bind intracellular receptors
a. catecholamines are derived from tyrosine
If a hormone is not derived from cholesterol or an amino acid it must be
a. bound to carrier in the blood
b. non-functional
c. a peptide hormone
a peptide hormone
Which of the following is a characteristic of epithelial tissue
a. it is always multilayered
b. it is only found lining the body's external surfaces
c. it has tight cell to cell connections
it has tight cell to cell connection
metabolic catalysts made of protein are called
enzymes
which membrane functions below are carried out by proteins
a. regulation of exchange
b. physical isolation of intracellular and extracellular compartments
c. communication and regulation of exchange
c. communication and regulation of exchange
Which of the below requires a protein but not ATP
a. active transport
b. osmosis
c. facilitated diffusion
facilitated diffusion
most autocrine signals are also
a. neurohormones

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