Old Questions Part 1
1.
The cell membrane that separates the inside of the cell from the
outside environment is made up of a(n):
a.
b.
c.
d.
e.
2.
All of the following are examples of organelles except:
a.
b.
c.
d.
e.
3.
exchange
transport
protection
secretion
all of the above
Which one of the following schematics best describes a
hydrolysis reaction?
a.
b.
c.
d.
7.
aerobic respiration
protein synthesis
detoxification
microtubule formation
fatty acid synthesis
Epithelia serve a role in:
a.
b.
c.
d.
e.
6.
cilia
chloroplast
cytoplasm
cartilage
microvilli
The mitochondrion is the site of:
a.
b.
c.
d.
e.
5.
mitochondria
golgi apparatus
endoplasmic reticulum
epithelium
ribosomes
The two major components of the cell are the nucleus and:
a.
b.
c.
d.
e.
4.
endoplasmic reticulum
phospholipid bilayer
epidermis
mitochondria
all of the above
A + H2O  B + C
B + C  A + H2O
Neither
Both
How many molecules of NET ATP does a molecule of glucose
yield in glycolysis only (not counting NADH)?
a.
b.
c.
d.
e.
1
2
3
4
whatever
10. Primary active transport involves the use of:
a.
b.
c.
d.
e.
cyclic AMP
ATP
glucose
phospholipids
hormones
11. The diffusion of water down its concentration gradient is called:
a.
b.
c.
d.
e.
tonicity
passive transport
cotransport
equilibrium
osmosis
12. Osmolarity is a measure of:
a.
b.
c.
d.
e.
the number of water molecules there are in a solution.
the number of ATPs there are in solution.
the number of proteins in a solution.
the total number of particles in a solution.
the total number of oxygens in a solution.
13. If you put a cell into a solution and observe that the cell shrivels,
then with respect to the cell, the solution would be called:
a.
b.
c.
d.
hypertonic
hypotonic
isotonic
all of the above
14. True or False: A molecule of glucose and a molecule of sodium
chloride dissolved in the same volume of water give the same
osmolarity.
15. All of the following are types of cell signaling except:
a.
b.
c.
d.
e.
autocrine
paracrine
neurohormone
neurotransmitter
all of the above are types of cell signaling
16. True or False: The cell membrane is permeable to potassium
17. Enzymes are
which serve to speed up the rate of reaction
without themselves being changed.
a.
b.
c.
d.
e.
types of sugars
cofactors
phosphates
muscles
biological catalysts
18. Reduction in a redox reaction involves the
8.
a.
b.
c.
d.
e.
9.
of electrons.
Diffusion is:
the movement of molecules from an area of higher
concentration to an area of lower concentration.
the movement of molecules from an area of lower
concentration to an area of higher concentration.
the random movement of molecules in an environment.
the absence of movement of molecules in an environment.
none of the above.
a.
b.
c.
d.
e.
19. Hydrolysis is the:
a.
Facilitated diffusion occurs by:
a.
b.
c.
d.
e.
pushing molecules across the membrane.
breaking down the membrane.
using a protein to cross through the membrane.
utilizing ATP.
none of the above.
loss
gain
generation
destruction
none of the above
b.
c.
d.
e.
synthesis of a molecule from two others that results in the
production of a water molecule.
transfer of electrons to water.
breakdown of a molecule by addition of water.
generation of glucose from water.
generation of energy from water.
Old Questions Part 1
20. The three steps in the catabolism (breakdown) of glucose are
glycolysis,
, and oxidative phosphorylation.
a.
b.
c.
d.
e.
anaerobic respiration
glycogen production
fatty acid production
the citric acid cycle
gluconeogenesis
21. The main form of storage of glucose in the body is:
a.
b.
c.
d.
e.
starch
glycogen
protein
a lipid
cholesterol
22. True or False: Passive and Active transport both require energy to
take place.
23. All of the following are properties of diffusion EXCEPT:
a.
b.
c.
d.
It is movement down a concentration gradient
Rate of diffusion is inversely proportional to distance
squared
Inversely related to the size of the molecule under
consideration
All of the above are properties of diffusion
24. True or False: The sodium-glucose transporter is considered an
antiporter.
25. An example of a secondary active transport would be:
a.
b.
c.
d.
Na-K ATPase
Na-Glucose transporter
Both
Don’t know
26. –70 mV is the
a.
b.
c.
d.
e.
of a cell.
action potential
graded potential
resting membrane potential
kinetic energy
none of the above
27. Ions important in maintaining the membrane potential are:
a.
b.
c.
d.
e.
Na
K
Cl
All of the above
None of the above
28. Cell to cell communication occurs through the use of hormones,
neurohormones, and:
a.
b.
c.
d.
e.
electrical signals
water
diacyl glycerol
myelin
sign language
29. Chemicals secreted by the cell that affect other cells are called:
a.
b.
c.
d.
e.
autocrines
wastes
drugs
ions
paracrines
30. An agonist is:
a.
b.
c.
d.
e.
a chemical that opposes a natural signal
any chemical that mimics a natural signal
a chemical that destroys a natural signal
a chemical that is not involved in signaling
none of the above