Term
Which are principle parts of a eukaryotic cell?
a) fat, carbohydrate, and protein
b) minerals and water
c) organelles
d) phospholipids and protein
e) protoplasm and nucleus |
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Definition
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Term
The cell membrane is described as a fluid mosaic. Some proteins have a degree of mobility within the lipid bilayer. (More than one answer may be correct).
a) The first sentence is true.
b) the first sentence is false.
c) The second sentence is true.
d) The second sentence is false.
e) The second sentence is relevant to the first
f) The second sentence is irrelevant to the first |
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Definition
| a, c, e - The first sentence is true, The second sentence is true, The second sentence is relevant to the first |
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Term
Which particle can penetrate cell membranes most easily?
a) lipid soluble, transport protein present
b) neutral charge, water soluble
c) smaller, water soluble
d) uncharged, larger |
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Definition
| a - lipid soluble, transport protein present |
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Term
For a cell to engage in active transport processes, it requires:
a) mitochondria
b) appropriate fuel
c) ATP
d) enzymes
e) all of the above |
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Definition
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Term
Which is inconsistent with the others?
a) diffusion
b) osmosis
c) filtration
d) phagocytosis
e)facilitated diffusion |
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Definition
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Term
Which can transport substances uphill against the concentration gradient?
a) active transport
b) osmosis
c) dialysis
d) facilitated diffusion
e) none of the above |
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Definition
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Term
Which statement is true for cytoplasm?
a) it is located outside the nucleus
b) it provides support for organelles
c) it is mostly water
d) a, b, and c
e) a and b |
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Definition
| d - it is located outside the nucleus, provides support for organelles, and is mostly water |
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Term
The retinoblastoma (Rb) protein:
a) is a brake on the progress of the cell cycle
b) binds to gene regulatory proteins
c) slows cell proliferation
d) a and c
e) a, b, and c |
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Definition
| e - is a brake on the progress of the cell cycle, binds to gene regulatory proteins, and slows cell proliferation |
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Term
A major function of connective tissue is:
a) to form glands
b) support and binding
c) covering and lining
d) movement
e) to conduct nerve impulses |
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Definition
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Term
Which are characteristic of epithelial tissue? (More than one answer may be correct).
a) elasticity
b) protection
c) fills spaces between organs
d) secretion |
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Definition
| b, d - protection and secretion |
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Term
Signaling molecules cause of the following except:
a) acceleration/initiative of intracellular protein kinases
b) arrest of cellular growth
c) apoptosis
d) conversion of an intracellular signal into an extracellular response |
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Definition
| d - conversion of an intracellular signal into an extracellular response |
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Term
Ligands that bind with membrane receptors include which of the following? (More than one answer may apply)
a) hormones
b) antigens
c) neurotransmitters
d) drugs
e) infections agents |
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Definition
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Term
The products from the metabolism of glucose include which of the following? (More than one answer may apply)
a) kilocalories
b) CO2
c) H2O
d) ATP |
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Definition
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Term
Identify the correct sequence of events for initiation and conduction of a nerve impulse.
1) Sodium moves inside
2) Potassium leaves cell
3) Sodium permeability changes
4) Resting potential is reestablished
5) Potassium permeability changes
a) 1, 3, 2, 5, 4
b) 3, 1, 5, 2, 4
c) 5, 2, 3, 1, 4
d) 4, 5, 2, 3, 1 |
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Definition
| b - Sodium permeability changes, Sodium moves inside cell, Potassium permeability changes, Potassium leaves cell, Resting potential is reestablished |
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