Which type of descending motor pathway originates in the brainstem and governs automatic movements that help regulate muscle tone, posture and balance?
a) Indirect pathway
b) Direct pathway
c) Reflex arc
d) Somatic arc
e) Muscle spindles
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Question 2) Which of the following is a list of three types of lipids?
A. Riposes, purines, and pyrimidines
B. Eicosanoids, steroids, and triglycerides
C. Fatty acids, proteins, and nucleotides
D. Glucose, starch, and triglycerides
E. Steroids, peptides, and sugars
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Question 3) Which bone cell in the diagram below is an osteoclast?
a) A
b) B
c) C
d) D
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Question 4) Which of the following is an accurate description of hydrocarbons?
A. Most of them contain phosphorus. B. They are nonpolar molecules. C. Most of them contain sulfur. D. They are polar molecules.
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Question 5) The hip joint is the joint found between
a) the femur and tibia.
b) the pelvis and sacrum.
c) the pelvis and tibia.
d) the femur and patella.
e) the pelvis and femur.
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Question 6) Saltatory conduction
a) can occur in unmyelinated axons
b) happens due to an even distribution of voltage-gated Na+ channels
c) encodes only action potentials that are initiated in response to pain.
d) occurs in unmyelinated axons and happens due to even distribution of voltage-gated Na+ channels
e) occurs only in myelinated axons
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Question 7) Which one represents a second-class lever?
a) A
b) B
c) C
d) All of these choices
e) None of these choices
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Question 8) Like most functional groups, carboxyl groups are
A. nonpolar and therefore increase a biomolecule's solubility in water.B. nonpolar and therefore decrease a biomolecule's solubility in water.C. polar and therefore increase a biomolecule's solubility in water.D. polar and therefore decrease a biomolecule's solubility in water.
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Question 9) A polymer is made up of several subunits called __________.
Fill in the blank with correct word.
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Question 10) Proteins are
A. polymers made up of amino acid monomers.B. monomers.C. monomers made of repeating subunits of polymers.D. neither monomers nor polymers.E. polymers made of repeating units of carbohydrates.
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