Which of the following is not a function of the control center within a feedback mechanism?
Select one:
a. receives and processes information
b. controls effectors
c. establishes a set point
d. detects a change in the value of a variable
(Ans- d. detects a change in the value of a variable
...
A&P 1 Final Exam, Straighterline Anatomy and
Physiology 1, Straighterline A&P 1 Cumulative
Final: StraighterLine A&P 1
Which of the following is not a function of the control center within a
feedback mechanism?
Select one:
a. receives and processes information
b. controls effectors
c. establishes a set point
d. detects a change in the value of a variable
(Ans- d. detects a change in the value of a variable
Cephalic means
Select one:
a. toward the middle or midline of the body.
b. away from the surface.
c. closer to the head.
d. closer than another structure to the point of attachment to the trunk.
e. toward the back of the body.
(Ans- c. closer to the head.
The lumbar region is the
Select one:
a. area in front of the elbow.
b. chest area.
c. lower back.
d. bottom of foot.
e. forearm. (Ans- c. lower back.
The axillary region is the
Select one:
a. calf.
,b. armpit.
c. hollow behind the knee.
d. neck.
e. thigh. (Ans- b. armpit.
Kinetic energy is
Select one:
a. the form of energy that actually does work.
b. movement of ions or electrons.
c. energy that flows between objects with different temperatures.
d. stored energy that could do work but is not doing so.
e. energy that moves in waves.
(Ans- a. the form of energy that actually does work.
Molecules that form when electrons are shared unequally between atoms
are called
Select one:
a. salt molecules.
b. polar molecules.
c. nonpolar molecules.
d. lopsided molecules.
e. None of these choices are correct.
(Ans- b. polar molecules.
In an x-ray film of the skeletal system, the dense tissue areas appear
______ because they ______ the x-rays; and the less dense tissues
appear ______ because they ______ the x-rays.
Select one:
a. light, absorb; dark, do not absorb
b. dark, absorb; light, do not absorb
c. light, do not absorb; dark, absorb
d. dark, do not absorb; light, do absorb
(Ans- a. light, absorb; dark, do not absorb
,In the reversible reaction, CO2 + H2O ↔ H2CO3 ↔ H+ + HCO3- , a
decrease in respiration rate will increase the concentration of CO2 in the
blood. What will this do to the amount of H+ in the blood?
Select one:
a. H+ will increase.
b. H+ will decrease.
c. H+ will be unchanged.
(Ans- a. H+ will increase.
Subatomic particles located around the nucleus of an atom are
Select one:
a. protons.
b. electrons.
c. neutrons.
d. neutrinos.
e. photons.
(Ans- b. electrons.
When ionic compounds dissolve in water, their ions
Select one:
a. cling tightly together.
b. dissociate or separate from one another.
c. lose their charge.
d. get lost in the solvent.
e. settle to the bottom of the container.
(Ans- b. dissociate or separate from one another.
All of the synthesis reactions in the body are called
Select one:
a. catabolism.
b. hydrolysis.
c. oxidation-reduction.
d. anabolism.
e. dissociation.
(Ans- d. anabolism.
, The smallest particle of an element that still exhibits the chemical
characteristics of that element is a(n)
Select one:
a. electron.
b. atom.
c. chemical bond.
d. orbital.
e. proton.
(Ans- b. atom.
Chemical substances that dissolve in water or react with water to release
ions are known as
Select one:
a. buffers.
b. enzymes.
c. bases.
d. inorganic compounds.
e. electrolytes.
(Ans- e. electrolytes.
A substance composed of two or more different types of atoms is a(n)
Select one:
a. compound.
b. element.
c. ion.
d. molecule.
e. compound and a molecule.
(Ans- e. compound and a molecule.
Phospholipids are important components of the plasma membrane. What
does "A" represent on the diagram?
Select one:
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