01 Study Guide

Which are principal parts of a eukaryotic cell?
A. fat, carbohydrate, and protein
B. organelles
C. minerals and water
D. protoplasm and nucleus
E. phospholipids and protein

The cell membrane is described as a fluid mosaic. Proteins have a degree of mobility within the lipid bilayer.
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.

Which particle can penetrate cell membranes most easily?
A. smaller, water soluble
B. uncharged, larger
C. lipid soluble, transport protein present
D. neutral charge, water soluble

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 are correct

Which is inconsistent with the others?
A. filtration
B. osmosis
C. facilitated diffusion
D. diffusion
E. phagocytosis

Which can transport substances uphill against the concentration gradient?
A. active transport
B. osmosis
C. dialysis
D. facilitated diffusion
E. None of the above is correct

Caveolae:
A. serve as repositories for some receptor cells.
B. provide a route for transport into a cell.
C. relay signals into cells.
D. All of the above are correct.

Which statement is true for cytoplasm?
A. It is located outside the nucleus.
B. It is mostly water.
C. a, b, and c
D. It provides support for organelles.
E. a and b

Anaphase
A. chromatid pair alignment
B. daughter nuclei
C. single strand of DNA, nondividing cell
D. centriole migration
E. 75% to 90% H₂O, lipids, and proteins
F. within the nucleus, stored RNA
G. "generation plant" for ATP
H. compartmentalizes cellular activity
I. protein synthesis site
J. chromatid migration

Chromatin
a. 75% to 90% H₂O, lipids, and proteins
b. within the nucleus, stored RNA
c. compartmentalizes cellular activity
d. single strand of DNA, nondividing cell
e. "generation plant" for ATP
f. centriole migration
g. chromatid pair alignment
h. chromatid migration
i. daughter nuclei
j. protein synthesis site

Metaphase
a. 75% to 90% H₂O, lipids, and proteins
b. within the nucleus, stored RNA
c. compartmentalizes cellular activity
d. single strand of DNA, nondividing cell
e. "generation plant" for ATP
f. centriole migration
g. chromatid pair alignment
h. chromatid migration
i. daughter nuclei
j. protein synthesis site

Mitochondria
a. 75% to 90% H₂O, lipids, and proteins
b. within the nucleus, stored RNA
c. compartmentalizes cellular activity
d. single strand of DNA, nondividing cell
e. "generation plant" for ATP
f. centriole migration
g. chromatid pair alignment
h. chromatid migration
i. daughter nuclei
j. protein synthesis site

Prophase
a. 75% to 90% H₂O, lipids, and proteins
b. within the nucleus, stored RNA
c. compartmentalizes cellular activity
d. single strand of DNA, nondividing cell
e. "generation plant" for ATP
f. centriole migration
g. chromatid pair alignment
h. chromatid migration
i. daughter nuclei
j. protein synthesis site

Ribosome
a. 75% to 90% H₂O, lipids, and proteins
b. within the nucleus, stored RNA
c. compartmentalizes cellular activity
d. single strand of DNA, nondividing cell
e. "generation plant" for ATP
f. centriole migration
g. chromatid pair alignment
h. chromatid migration
i. daughter nuclei
j. protein synthesis site

The retinoblastoma (Rb) protein:
A. a, b, and c
B. slows cell proliferation.
C. is a brake on the progress of the cell cycle.
D. binds to gene regulatory proteins.
E. a and c

A major function of connective tissue is:
A. covering and lining.
B. support and binding.
C. movement.
D. to form glands.
E. to conduct nerve impulses

Which are characteristic of epithelial tissue?
A. fills spaces between organs
B. protection
C. secretion
D. elasticity

Lining of the kidney tubules
A. simple squamous
B. transitional
C. simple cuboidal
D. stratified squamous
E. simple columnar, ciliated

Lining of the upper respiratory tracts
a. simple squamous
b. simple cuboidal
c. simple columnar, ciliated
d. stratified squamous
e. transitional

Signaling molecules cause all of the following except:
A. acceleration/initiative of intracellular protein kinases.
B. apoptosis.
C. arrest of cellular growth.
D. conversion of an intracellular signal into an extracellular response.

Ligands that bind with membrane receptors include which of the following?
A. antigens
B. infectious agents
C. neurotransmitters
D. hormones
E. drugs

The produces from the metabolism of glucose include which of the following?
A. ATP
B. CO₂
C. H₂O
D. kilocalories

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. 4, 5, 2, 3, 1
B. 5, 2, 3, 1, 4
C. 3, 1, 5, 2, 4
D. 1, 3, 2, 5, 4

Increased cytoplasmic calcium:
A. causes one cell to adhere to another.
B. increases permeability at the junctional complex.
C. decreases permeability at the junctional complex.
D. None of the above is correct.

Cell junctions:
A. coordinate activities of cells within tissues.
B. are an impermeable part of the plasma membrane.
C. hold cells together.
D. Both a and c are correct.
E. Both b and c are correct.