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BIO 270 Exam 1 JMU Hynd- Test Questions with Solutions
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BIO 270 Exam 1 JMU Hynd- Test Questions with Solutions
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BIO 270 Exam 1 JMU Hynd- Test Questions withSolutions
Which statement about the plasma membrane is not true? Correct Ans-- serves as
mechanical barrier to hold in contents of cell
- selectively controls movement of molecules between the extracellular fluid and cytoplasm
- ****barrier that surrounds blood vessels and separates blood plasma from interstitial
fluid****
- contains proteins that provides for various membrane functions
NADH is Correct Ans--produced in glycolysis
-produced in citric acid (Krebs) cycle
Which statement is true? Correct Ans-- mitochondria are primarily sites where anaerobic
respiration occurs
- peroxisomes are membranous sacs that contain digestive enzymes
- ribosomes are organelles that synthesize RNA
- ****none of the statements are true****
During anaerobic conditions, Correct Ans-- the degradation of glucose cannot proceed
beyond the kreb cycle
High demands for ATP make glycolysis alone an insufficient and inefficient supplier of power
for most cells. (T/F) Correct Ans-True
, BIO 270 Exam 1 JMU Hynd- Test Questions with
Solutions
What form of endocytosis do white blood cells use in order to engulf bacteria? Correct
Ans--phagocytosis
If red blood cells are placed in a(n) ____________________ solution, water will enter the cells
by osmosis. Correct Ans--hypotonic
A(n) ____________________ solution has the same concentration of non-penetrating solutes
as normal body cells. Correct Ans--isotonic
If solution A has a higher concentration of solute particles than solution B and if these
solutions are separated by a semipermeable membrane, then there will be a net movement
of water Correct Ans--into solution A because water moves from low concentration to high
concentration
____________________ act like "spot rivets" that anchor together two adjacent but non-
touching cells. Correct Ans--desosomes
The tonicity of a solution refers to the effect that the ____. Correct Ans--solution has on
cell volume when the solution surrounds the cell
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