100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
TEST BANK FOR Understanding Pathophysiology 7th Edition by Sue E. Huether & Kathryn L. McCance , ISBN: 9780323639088 || Complete Guide A+$19.48
Add to cart
Understanding Pathophysiology 7th edition by Huether, McCance Test Bank For Understanding Pathophysiology 7th Edition Test Bank Chapter 1. Cellular Biology MULTIPLE CHOICE 1. A student is observing a cell under the microscope. It is observed to have supercoiled DNAwith histones. Which of the follow...
TEST BANK for Understanding Pathophysiology 7th Edition
TE
S
TB
A N
KS
Chapter 1. Cellular Biology
MULTIPLE CHOICE
O
1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA
with histones. Which of the following would also be observed by the student?
LU
a. A single circular chromosome
b. A nucleus
c. Free-floating nuclear material
TI
d. No organelles
ANS: B
O
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
N
nucleus; thus, the nucleus should be observed.
A single circular chromosome is characteristic of prokaryotic cells, which do not have histones.
S
Free-floating nuclear material describes a prokaryotic cell, which would not have a distinct
nucleus.
, Eukaryotic cells have membrane bounded cellular components called organelles. No organelles
describes a prokaryotic cell.
TE
2. A nurse is instructing the staff about cellular functions. Which cellular function is the nurse
describing when an isolated cell absorbs oxygen and uses it to transform nutrients to energy?
S
a. Metabolic absorption
b. Communication
TB
c. Secretion
d. Respiration
ANS: D
A
The ability of the cell to absorb oxygen refers to the cells function of respiration.
N
The ability of the cell to function within a society of cells refers to its function of
communication.
KS
The ability of the cell to take in nutrients refers to the cells function of metabolic absorption.
The ability of the cell to synthesize new substances and secrete these elsewhere refers to the cells
function of secretion.
O
3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of
LU
the genetic information be contained?
a. Mitochondria
b. Ribosome
TI
c. Nucleolus
d. Nucleus
O
ANS: C
N
The region of the cell that contains genetic material, including a large amount of ribonucleic
acid, most of the DNA, and DNA-binding proteins, is the nucleolus.
S
The mitochondria is the site of cellular respiration.
The ribosomes are involved in manufacturing of proteins within the cell.
, The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
TE
4. The fluid mosaic model for biologic membranes describes membrane behavior. According to
this model, which of the following float singly or as aggregates in the fluid lipid bilayer?
a. Peripheral membrane proteins
S
b. Integral membrane proteins
c. Glycoproteins
TB
d. Cell adhesion molecules
ANS: B
A
Integral membrane proteins float freely in the fluid lipid bilayer.
N
Peripheral membrane proteins are not embedded in the layer, but reside at the surface.
Glycoproteins act as cell surface markers.
KS
Cell adhesion molecules are on the outside of the membrane and allow cells to hook together.
5. Which of the following can bind to plasma membrane receptors?
O
a. Oxygen
b. Ribosomes
LU
c. Amphipathic lipids
d. Ligands
TI
ANS: D
Ligands are specific molecules that can bind with receptors on the cell membrane.
O
Oxygen moves by diffusion; it does not bind to receptors.
N
Ribosomes make proteins and are not involved in binding.
S
Amphipathic lipids are a portion of the cell membrane.
6. A nurse is reviewing a report from a patient with metastatic cancer. What finding would
support the diagnosis of metastatic cancer? Alterations in extracellular matrix that include:
, a. Decreased fibronectin
b. Increased collagen
TE
c. Decreased elastin
d. Increased glycoproteins
ANS: A
S
Reduced amounts of fibronectin are found in some types of cancerous cells, allowing cancer
TB
cells to travel, or metastasize.
Collagen provides strength, and its breakdown is associated with osteoarthritis, not cancer.
A
Elastin is found in the lungs and allows tissues to stretch; it is not associated with cancerous
cells.
N
Decreased, not increased, glycoproteins are associated with cancerous cells.
KS
7. Which form of cell communication is used to relate to other cells in direct physical contact?
a. Cell junction
b. Gap junction
O
c. Desmosomes
d. Tight junctions
LU
ANS: A
Cell junctions hold cells together and permit molecules to pass from cell to cell.
TI
Gap junctions allow communication from the inside of one cell to the inside of another.
O
Desmosomes are not involved in communication, but allow cells to hold together.
Tight junctions are barriers that prevent movement of some substances and leakages of others.
N
8. Pancreatic beta cells secrete insulin, which inhibits secretion of glucagon from neighboring
S
alpha cells. This action is an example of which of the following signaling types?
a. Paracrine
b. Autocrine
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TestbankSolutions. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $19.48. You're not tied to anything after your purchase.
