F T TL
F T TL
F T TL
F T TL
F T
Chapter 1. Cellular Biology TL
F T TL
F T TL
F T
MULTIPLE CHOICE TL
F T
1. A student is observing a cell under the microscope. It is observed to have supercoiled
TL
F T F TL
T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T DNA with histones. Which of the following would also be observed by the student?
F TL T TL
F T F TL T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T
a. A single circular chromosome
TL
F T TL
F T TL
F T
b. A nucleus TL
F T
c. Free-floating nuclear material TL
F T TL
F T
d. No organelles TL
F T
ANS: B TL
F T
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T nucleus; thus, the nucleus should be observed. F TL
T TL
F T TL
F T TL
F T TL
F T TL
F T
A single circular chromosome is characteristic of prokaryotic cells, which do not have
FTL T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
Fhistones.
TL T
Free-floating nuclear material describes a prokaryotic cell, which would not have a distinct TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T nucleus.
Eukaryotic cells have membrane bounded cellular components called organelles. NoTL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T organelles describes a prokaryotic cell. F TL T F TL T TL
F T TL
F T
2. A nurse is instructing the staff about cellular functions. Which cellular function is the
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T nurse describing when an isolated cell absorbs oxygen and uses it to transform
F TL T TL
F T F TL
T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T nutrients to energy? TL
F T FTL T
a. Metabolic absorption TL
F T
b. Communication
c. Secretion
d. Respiration
,ANS: D TL
F T
The ability of the cell to absorb oxygen refers to the cells function of respiration.
TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL T TL
F T F TL
T FTL T F TL T
The ability of the cell to function within a society of cells refers to its function of
TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL
T F TL
T TL
F T TL
F T TL
F T F TL T
TL
F T communication.
The ability of the cell to take in nutrients refers to the cells function of metabolic
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL
T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T F TL
T
Fabsorption.
TL T
The ability of the cell to synthesize new substances and secrete these elsewhere refers to the
TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T cells function of secretion.
TL
F T F TL T TL
F T
3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T FTL T F TL T TL
F T TL
F T
TL
F T most of the genetic information be contained?
TL
F T TL
F T F TL
T TL
F T TL
F T TL
F T
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C TL
F T
The region of the cell that contains genetic material, including a large amount of
TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T ribonucleic acid, most of the DNA, and DNA-binding proteins, is the nucleolus.TL
F T TL
F T F TL
T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL
T TL
F T
The mitochondria is the site of cellular respiration.
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
The ribosomes are involved in manufacturing of proteins within the cell.
TL
F T F TL T F TL
T TL
F T TL
F T F TL
T TL
F T TL
F T F TL T F TL T
The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
TL
F T F TL T F TL
T F TL T TL
F T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T
4. The fluid mosaic model for biologic membranes describes membrane behavior. According
TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T to this model, which of the following float singly or as aggregates in the fluid lipid
TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T F TL T F TL
T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T bilayer?
a. Peripheral membrane proteins TL
F T TL
F T
b. Integral membrane proteins TL
F T TL
F T
, c. Glycoproteins
d. Cell adhesion molecules TL
F T TL
F T
ANS: B TL
F T
Integral membrane proteins float freely in the fluid lipid bilayer.
F TL T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T F TL
T TL
F T
Peripheral membrane proteins are not embedded in the layer, but reside at the surface.
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL
T TL
F T TL
F T TL
F T
TL
F T Glycoproteins act as cell surface markers. TL
F T F TL T TL
F T TL
F T TL
F T
Cell adhesion molecules are on the outside of the membrane and allow cells to hook
TL
F T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL T TL
F T
Ftogether.
TL T
5. Which of the following can bind to plasma membrane receptors? F TL T TL
F T TL
F T F TL
T F TL
T F TL
T TL
F T F TL T TL
F T
a. Oxygen
b. Ribosomes
c. Amphipathic lipids TL
F T
d. Ligands
ANS: D TL
F T
Ligands are specific molecules that can bind with receptors on the cell membrane.
TL
F T TL
F T TL
F T F TL
T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T Oxygen moves by diffusion; it does not bind to receptors.
TL
F T TL
F T TL
F T TL
F T F TL
T F TL T TL
F T F TL
T TL
F T
Ribosomes make proteins and are not involved in TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T binding. Amphipathic lipids are a portion of the cell TL
F T TL
F T F TL
T F TL T F TL T F TL
T TL
F T TL
F T
TL
F T membrane.
6. A nurse is reviewing a report from a patient with metastatic cancer. What finding
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T F TL T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T would support the diagnosis of metastatic cancer? Alterations in extracellular matrix
TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T TL
F T
TL
F T that include:
TL
F T
a. Decreased fibronectin TL
F T
b. Increased collagen F TL
T