A
microscope has an ocular lens with a magnification of 10x and objective
lenses with magnifications of 10x, 20x, 30x, and 43x. Which of the
following are not possible magnifications that can be achieved with
this microscope?
(A)
10x
(B)
100x
(C)
200x
(D)
300x
(E)
430x
2.
Which
of the following are features of the prokaryotic cell?
(A)
Nucleus
(B)
Ribosomes
(C)
Mitochondria
(D)
Vacuoles
(E)
Golgi bodies
3.
What
is the function of the Golgi apparatus?
(A)
It controls the cell’s activities and stores its DNA.
(B)
It is the site of protein synthesis.
(C)
It synthesizes lipids and transports synthesized proteins.
(D)
It sorts and packages proteins made in the endoplasmic
reticulum.
(E)
It provides structure to the prokaryotic cell.
4.
Proteins
manufactured in the endoplasmic reticulum are secreted from the
cell by which of the following processes?
(A)
Diffusion
(B)
Osmosis
(C)
Pinocytosis
(D)
Exocytosis
(E)
Passive transport
5.
Why
is the “rough” endoplasmic reticulum rough?
(A)
It is studded with ribosomes that form a bumpy coat.
(B)
It functions in lipid synthesis.
(C)
It contains cellulose, which gives the membrane rigidity
and structure.
(D)
It lacks the ribosomes characteristic of the cytosol.
(E)
It engages in lipid synthesis, which gives it a rough texture.
6.
Which
of the following functions is performed by the lysosome?
(A)
Digestion of intracellular debris
(B)
Production of energy through photosynthesis
(C)
Regulation of transport
(D)
Storage of nutrients
(E)
Lipid synthesis
7.
What
two classes of molecules make up the phospholipid bilayer?
(A)
Sugars and phosphoproteins
(B)
Proteins and phospholipids
(C)
Phosphoproteins and lipids
(D)
DNA and carbohydrates
(E)
PhosphoDNA and lipids
8.
What
is the name of the natural process by which molecules flow from
an area of higher concentration to an area of lower concentration?
(A)
Diffusion
(B)
Pinocytosis
(C)
Endocytosis
(D)
Respiration
(E)
Exocytosis
9.
Which
of the following is not a property of the cell membrane?
(A)
Fluidity
(B)
Permeability to nonpolar compounds
(C)
Permeability to water and gases
(D)
Rigidity
(E)
Impermeability to large polar compounds
10.
A
cell is placed in a bath of water that has a much higher salt concentration
than the concentration inside the cell. What happens?
