Question 1

In the extracellular matrix of animal cells, collagen and elastin fibers are embedded with this matrix.

Accepted Answer

A) glycoaminoglycans 
B) proteoplycans 
C) lignins 
D) pectins 
E) both A and B 
A) glycoaminoglycans 
B) proteoplycans 
C) lignins 
D) pectins 
E) both A and B E

Question 2

is the ring of cytoplasm lining the plasmodesmata.

Accepted Answer

Annulus

Question 3

Collagens are associated with which of the following types of cellular junctions?

Accepted Answer

A) adhesive junctions 
B) gap junctions 
C) plasmodesmata 
D) tight junctions 
E) none of the above 
A) adhesive junctions 
B) gap junctions 
C) plasmodesmata 
D) tight junctions 
E) none of the above E

Question 4

Which of the following is MISMATCHED with regard to similar excellular structures in plant and animal cells?

Accepted Answer

A) extracellular matrix- cell wall 
B) elastins- extensins 
C) proteoglycans- hemicelluloses 
D) fibronectins- pectins 
E) collagens- cellulose 
A) extracellular matrix- cell wall 
B) elastins- extensins 
C) proteoglycans- hemicelluloses 
D) fibronectins- pectins 
E) collagens- cellulose

Question 5

A newly defined autoimmune disorder has resulted in an immune response against Type V collagen fibers. As a result, the most likely organ to be targeted in this response would be the

Accepted Answer

A) lungs. 
B) heart. 
C) tongue. 
D) stomach. 
E) skin. 
A) lungs. 
B) heart. 
C) tongue. 
D) stomach. 
E) skin.

Question 6

The plant cell wall network is comprised of all of the following EXCEPT

Accepted Answer

A) cellulose. 
B) pectin. 
C) hyaluronate. 
D) hemicellulose. 
E) extensin. 
A) cellulose. 
B) pectin. 
C) hyaluronate. 
D) hemicellulose. 
E) extensin.

Question 7

A type of adhesive junction that is associated with the connection between an epithelial cell and the basal lamella is the

Accepted Answer

A) hemidesmosome. 
B) focal contact. 
C) desmosome. 
D) plasmodesmata. 
E) gap junction. 
A) hemidesmosome. 
B) focal contact. 
C) desmosome. 
D) plasmodesmata. 
E) gap junction.

Question 8

The organ where you would most likely expect to find actin microfilaments continuous with adherens junctions is the

Accepted Answer

A) brain. 
B) stomach. 
C) kidney. 
D) heart. 
E) liver. 
A) brain. 
B) stomach. 
C) kidney. 
D) heart. 
E) liver.

Question 9

You are investigating cell localization by targeting the carbohydrates associated with various cell types. Which of the following would help determine which carbohydrates are found on the cell surface based on this molecule's ability to bind various carbohydrates?

Accepted Answer

A) cadherins 
B) proteoglycans 
C) lectins 
D) connexins 
E) pectins 
A) cadherins 
B) proteoglycans 
C) lectins 
D) connexins 
E) pectins

Question 10

The type of cellular junction prominent in the stomach and kidney is the

Accepted Answer

A) tight junction. 
B) laminin junction. 
C) plasmodesmata. 
D) adhesive junction. 
E) gap junction. 
A) tight junction. 
B) laminin junction. 
C) plasmodesmata. 
D) adhesive junction. 
E) gap junction.

Question 11

Which of the following is NOT associated with the basal lamina?

Accepted Answer

A) can influence cell migrations in certain areas of the body 
B) Fibronectins are most abundant here. 
C) serves as a structural support 
D) contains collagen type IV, proteoglycans, laminins, and entactin 
E) allows for movement of some small molecules 
A) can influence cell migrations in certain areas of the body 
B) Fibronectins are most abundant here. 
C) serves as a structural support 
D) contains collagen type IV, proteoglycans, laminins, and entactin 
E) allows for movement of some small molecules

Question 12

Which of the following cell junctions are associated with the proper alignment of intestinal epithelial cells?

Accepted Answer

A) tight junctions 
B) gap junctions 
C) adhesive junctions 
D) desmosomes 
E) all of the above 
A) tight junctions 
B) gap junctions 
C) adhesive junctions 
D) desmosomes 
E) all of the above

Question 13

Some observations have suggested to researchers that substances associated with the extracellular matrix may be involved in cell migration. This has been observed with the cell marker CD44 on the surface of cancer cells and their ability to be separate from one another and to easily metastasize to other regions of the body. This is most likely due to the interaction of CD44 and

Accepted Answer

A) elastin. 
B) chondrotin sulfate. 
C) hyaluronate. 
D) fibronectins. 
E) ICAMs. 
A) elastin. 
B) chondrotin sulfate. 
C) hyaluronate. 
D) fibronectins. 
E) ICAMs.

Question 14

A person is genotypically blood type A. However, this individual also does not produce the lipid to which N- acetylgalactosamine is added, and is therefore not expressed on the surface of erythrocytes. This situation is known as the Bombay phenotype. When tested, this person will appear to be blood type

Accepted Answer

A) B. 
B) AB. 
C) A. 
D) O. 
A) B. 
B) AB. 
C) A. 
D) O.

Question 15

Which of the following is false with regard to the extracellular matrix?

Accepted Answer

A) Bone and cartilage are examples of cells that have specialized extracellular matrices associated with their function. 
B) Extracellular matrices play a role in determining the mechanical properties of tissues and organs. 
C) Extracellular matrices are only found in association with eukaryotic cells. 
D) These structures are external to the cell membrane, but are still an integral component of cell function. 
E) Extracellular matrices play a role in determining the shape of a cell. 
A) Bone and cartilage are examples of cells that have specialized extracellular matrices associated with their function. 
B) Extracellular matrices play a role in determining the mechanical properties of tissues and organs. 
C) Extracellular matrices are only found in association with eukaryotic cells. 
D) These structures are external to the cell membrane, but are still an integral component of cell function. 
E) Extracellular matrices play a role in determining the shape of a cell.

Question 16

An elderly patient presents with blistering of the skin. You suspect an autoimmune disorder. If your suspicions are correct, you should find in the serum of the patient antibodies reactive to

Accepted Answer

A) vinculin. 
B) actin. 
C) alpha- actinin. 
D) BPAG. 
E) talin. 
A) vinculin. 
B) actin. 
C) alpha- actinin. 
D) BPAG. 
E) talin.

Question 17

are the adhesive glycoproteins associated with most animal cells that function in calcium mediated cell- cell recognition and adhesion.

Accepted Answer

The answer of are the adhesive glycoproteins associated with most...

Question 18

The serves as structural support, tissue organization, and a permeability barrier.

Accepted Answer

The answer of The serves as structural support, tissue organization,...

Question 19

In performing research, you treat frog zygotes with antibodies that bind E- cadherin. As a result, you expect

Accepted Answer

A) the cells to divide uncontrollably. 
B) the cells to be loosely associated and abort development. 
C) the cells to be loosely associated and develop into a novel strain of frog. 
D) no change with regard to development. 
E) the cells to become exclusively muscle tissue. 
A) the cells to divide uncontrollably. 
B) the cells to be loosely associated and abort development. 
C) the cells to be loosely associated and develop into a novel strain of frog. 
D) no change with regard to development. 
E) the cells to become exclusively muscle tissue.

Question 20

The insoluble layer of aromatic alcohols that are primarily found in woody tissues are the

Accepted Answer

A) pectins. 
B) lignins. 
C) annulus. 
D) cadherins. 
E) proteoglycans. 
A) pectins. 
B) lignins. 
C) annulus. 
D) cadherins. 
E) proteoglycans.

Exam 17: Beyond the Cell: Cell Adhesion, Cell Junctions, and Extracellular Structures

In the extracellular matrix of animal cells, collagen and elastin fibers are embedded with this matrix.

is the ring of cytoplasm lining the plasmodesmata.

Collagens are associated with which of the following types of cellular junctions?

Which of the following is MISMATCHED with regard to similar excellular structures in plant and animal cells?

A newly defined autoimmune disorder has resulted in an immune response against Type V collagen fibers. As a result, the most likely organ to be targeted in this response would be the

The plant cell wall network is comprised of all of the following EXCEPT

A type of adhesive junction that is associated with the connection between an epithelial cell and the basal lamella is the

The organ where you would most likely expect to find actin microfilaments continuous with adherens junctions is the

You are investigating cell localization by targeting the carbohydrates associated with various cell types. Which of the following would help determine which carbohydrates are found on the cell surface based on this molecule's ability to bind various carbohydrates?

The type of cellular junction prominent in the stomach and kidney is the

Which of the following is NOT associated with the basal lamina?

Which of the following cell junctions are associated with the proper alignment of intestinal epithelial cells?

Which of the following is false with regard to the extracellular matrix?

An elderly patient presents with blistering of the skin. You suspect an autoimmune disorder. If your suspicions are correct, you should find in the serum of the patient antibodies reactive to

are the adhesive glycoproteins associated with most animal cells that function in calcium mediated cell- cell recognition and adhesion.

The serves as structural support, tissue organization, and a permeability barrier.

In performing research, you treat frog zygotes with antibodies that bind E- cadherin. As a result, you expect

The insoluble layer of aromatic alcohols that are primarily found in woody tissues are the

A Preview of the Cell

The Chemistry of the Cell

The Macromolecules of the Cell

Cells and Organelles

Bioenergetics: The Flow of Energy in the Cell

Enzymes: The Catalysts of Life

Membranes: Their Structure, Function, and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System and Peroxisomes

Signal Transduction Mechanisms: I Electrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Ii Messengers and Receptors

Cytoskeletal Systems

Cellular Movement: Motility and Contractility

The Structural Basis of Cellular Information: DNA, Chromosomes, and the Nucleus

The Cell Cycle, Dna Replication, and Mitosis

Sexual Reproduction, Meiosis, and Genetic Recombination

Gene Expression: I the Genetic Code and Transcription

Gene Expression: II Protein Synthesis and Sorting

The Regulation of Gene Expression

Cancer Cells

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