Bio 181, Fall 2005. Dr. Lisa Werner                Learning Objectives for Chapter 6, A Tour of the Cell

 

Recommended CD-ROM activities:  All

 

Understand and be able to use the following terms:

 

cell

light microscope

resolving power

organelle

electron microscope

transmission electron microscope (TEM)

scanning electron microscope (SEM)

cell fractionation

ultracentrifuge

cytosol

prokaryotic cell

cytoplasm

plasma membrane

nucleus

nuclear envelope

nuclear pore

chromatin

nucleolus

endomembrane system

endoplasmic reticulum

smooth endoplasmic reticulum

rough endoplasmic reticulum

transport vesicles

Golgi apparatus

lysosome

phagocytosis

vacuoles

contractile vacuole

central vacuole

mitochondria

chloroplasts

cristae

matrix

intermembrane space

thylakoids

grana

stroma

cytoskeleton

microtubules

microfilaments

actin

Intermediate filaments

centrosome

centriole

cilia

flagella

cell wall

extracellular matrix

 

1.       Distinguish between magnification and resolving power.

2.       Describe the principles, advantages, and limitations of the light microscope, transmission electron microscope, and scanning electron microscope.

3.       Be able to use the units of the metric system for measuring length, mass, volume, temperature and time.

4.       Describe the major steps of cell fractionation and explain why it is a useful technique.

5.       What is a cell? (What are the essential components found in all cells?)

6.       Distinguish between prokaryotic and eukaryotic cells. 

7.       Explain why there are both upper and lower limits to cell size.

8.       Explain why compartmentalization is important in eukaryotic cells.

9.       Describe the structure and function of the nucleus. Be able to give the function, describe the structure, and label the following on a diagram:  nuclear envelope, nuclear pore, chromatin, nucleolus.

10.    Give the general function of a ribosome.

11.    Give the overall function of the endomembrane system and list its components, describe their structures and functions.

a.       Describe the structure of the endoplasmic reticulum, including that of the rough and smooth ER.  What are the functions of the rough and smooth ER? 

b.       Describe the structure and the function of the Golgi apparatus.  Be able to outline how the delivery system works.

c.        Describe the structure and function of transport vesicles.

d.       Describe the flow of proteins through the endomembrane system.

e.       Describe the structure and function of lysosomes.  Explain how impaired lysosomal function can cause the symptoms of storage diseases.

f.         Give different examples of vacuoles.

12.    Describe the structure of a mitochondrion and explain the importance of compartmentalization in mitochondrial function.

13.    Identify the three functional compartments of a chloroplast. Explain the importance of compartmentalization in chloroplast function.

14.    Describe the general roles of the cytoskeleton.

15.    Describe the structure and functions of microtubules, microfilaments, and intermediate filaments.

16.    Describe the structure and function of the plant cell wall.

17.    Describe the extracellular matrix.  What type of cells have an extracellular matrix. What is its role?

18.    Give some of the functions of intracellular junctions.

19.    Be able to diagram or identify the appropriate cell or organelle: plasma membrane, nucleus, cytoplasm, cell wall, central vacuole, transport vesicle, endoplasmic reticulum, ribosome, rough ER, smooth ER, Golgi body, nucleolus, mitochondria, cristae, matrix, mitochondrial inter-membrane space, chloroplasts, grana, thylakoids.