Question 1

________ secretions are discharged onto an epithelial surface.

Accepted Answer

The answer of ________ secretions are discharged onto an epithelial...

Question 2

The five functional types of epithelia are listed below. Match each type with its location and/or description.
-Found in the epidermis,esophagus,and mouth,these stacked layers of cells prevent exchange,while they resist chemicals,bacteria,and other destructive forces.

Accepted Answer

A) exchange 
B) transport 
C) ciliated 
D) protective 
E) secretory

Question 3

Explain the relationship between microtubules,cilia,flagella,centrioles,spindle fibers,and the centrosome.

Accepted Answer

The answer of Explain the relationship between microtubules,cilia,flagella,centrioles,spindle fibers,and the...

Question 4

Which of the following consists of a network of intracellular membranes with attached ribosomes?

Accepted Answer

A)  rough endoplasmic reticulum 
B)  smooth endoplasmic reticulum 
C)  mitochondria 
D)  nucleoli 
E)  Golgi apparatus

Question 5

Your study partner is having difficulty understanding dense fibrous connective tissue,tendons,and ligaments.Explain to her how they are related to each other and how they are different from other categories of connective tissue.

Accepted Answer

The answer of Your study partner is having difficulty understanding...

Question 6

Microtubules

Accepted Answer

A)  are composed of tubulin. 
B)  are hollow, filamentous structures. 
C)  form cilia that aid in cell movement. 
D)  are the largest cytoplasmic fibers. 
E)  All of the answers are correct.

Question 7

In typical women of reproductive age,the epithelial cells lining the uterus (the endometrium)die and are shed from the body roughly once every month,in the process of menstruation.The triggers in this process include chemical (hormonal)changes and contraction of the blood vessels in the lining.Cell death may be a result of either apoptosis or necrosis.Give the characteristics of each process.Devise an argument for classifying the process of menstruation as an example of apoptosis,and then argue for classifying it as necrosis.Which is correct?

Accepted Answer

The answer of In typical women of reproductive age,the epithelial...

Question 8

Functions of connective tissue include

Accepted Answer

A)  establishing a structural framework for the body. 
B)  transporting fluids and dissolved materials. 
C)  providing protection for delicate organs. 
D)  storing energy reserves. 
E)  All of the answers are correct.

Question 9

On the row of cells indicated below,match A-E to the terms in the following question(s).  Figure 3.1
-apical surface

Accepted Answer

The answer of On the row of cells indicated below,match...

Question 10

Cancer is not one disease but a group of related diseases,caused by abnormal genes,environmental factors,and/or viral infections.Describe the basic common characteristics of cancers,including the role of anchoring junctions and proteases.What is a tumor? What is metastasis? Is cancer usually considered to be contagious? Explain.

Accepted Answer

The answer of Cancer is not one disease but a...

Question 11

Increasing muscle mass and decreasing fat content in your body can increase resting metabolism.Why is this?

Accepted Answer

A)  because doing so requires exercise and exercising burns calories 
B)  because muscle cells have more mitochondria than fat cells, allowing for more energy to be made from sugar 
C)  because adipocytes contain more cytoplasmic inclusions which slow down metabolism 
D)  because fat cells have no blood supply and cannot carry nutrients to be metabolized

Question 12

In a pancreatic cell producing digestive enzyme,you would expect to find an elaborate

Accepted Answer

A)  rough endoplasmic reticulum. 
B)  smooth endoplasmic reticulum.

Question 13

Define and distinguish between necrosis and apoptosis,and give specific examples of each.

Accepted Answer

The answer of Define and distinguish between necrosis and apoptosis,and...

Question 14

Peroxisomes

Accepted Answer

A)  use an enzyme to destroy H2O2 that is toxic to the cell. 
B)  are a type of lysosome. 
C)  are responsible for the atrophy of unused muscles. 
D)  are sites for synthesis of fatty acids, steroids, and phospholipids. 
E)  All of the answers accurately describe peroxisomes.

Question 15

Due to the fact that they divide frequently,epithelia are prone to the genetic mutations associated with cancer.

Accepted Answer

A) True 
 B)False

Question 16

The nucleus stores all the information needed to synthesize which of the following molecules?

Accepted Answer

A)  carbohydrates 
B)  lipids 
C)  proteins 
D)  phospholipids 
E)  All of the answers are correct.

Question 17

Each of the following is an example of a nonmembranous organelle except one.Identify the exception.

Accepted Answer

A)  lysosome 
B)  cilia 
C)  centriole 
D)  ribosome 
E)  cytoskeleton

Question 18

The type of protein found in gap junctions is the

Accepted Answer

A)  claudin. 
B)  occludin. 
C)  cadherin. 
D)  connexin. 
E)  integrin.

Question 19

If a cell lacked lysosomes,it would not be able to

Accepted Answer

A)  synthesize lipids. 
B)  produce enzymes. 
C)  digest cellular wastes and bacteria. 
D)  destroy H2O2. 
E)  transport water-soluble molecules.

Question 20

Match the type of cell junction with the best description.Answers may be used once,more than once,or not at all
-can be cell-matrix junctions

Accepted Answer

A) gap junction 
B) tight junction 
C) anchoring junction

Exam 3: Compartmentation: Cells and Tissues