2.
a) In the event that we need to make special announcements outside of class or in case you should miss a class and want to print out the worksheet for that week in order not to get behind, you should check the website specifically devoted for BioExcel. What is the address for the BioExcel Website?
b) For this question, go to the BioExcel Website and follow the instructions. This is to make sure that the website is working and accessible.
3. From Debski's notes, list five characteristics that describe what animal cells do in order to live:
4. Define the following AND give an example:
a) tissue -
b) organ -
c) organ systems -
5. What are the four basic tissue types of animals?
6.
a) Epithelial tissue is described by using what 2 structural traits?
b) Air sacs in the lungs are where oxygen and carbon dioxide exchange occurs. The gases move across the linings of these air sacs via diffusion. Given this information, which type of epithelial tissue (simple squamous, simple cuboidal, simple columnar, stratified squamous, stratified cuboidal, or stratified columnar) would be best for the functioning of the lungs. EXPLAIN.
c) Which of the following areas of the body would most likely contain some form of epithelial tissue?
a. Lining of the nasal passages
b. Salivary glands
c. Outer skin
d. Lining of blood vessels
e. Lining of the intestines
7. Draw sketches for each of the following:
a) simple cuboidal
b) stratified squamous
c) simple squamous
d) stratified columnar
8. According to Debski's notes:
a) What is the function of connective tissue?
b) Connective Tissue has ______________________________________________ scattered through an
_______________________________ which is web of fibers embedded in
_______________________________ . _______________________ secrete the
_________________________ .
9.
a) Describe the major properties of the following 3 types of connective tissue fibers:
i) collagen -
ii) elastin -
iii) reticular -
b) What is name of the type of cell that secretes the protein ingredients for these fibers?
10. Match the following components and properties with the appropriate type of connective tissue.
A. loose
B. fibrous
C. adipose
D. cartilage
E. bone
F. blood
_____ i.) contains cells called osteoblasts
_____ ii.) found in ligaments and tendons
_____ iii.) contains cells called chondrocytes
_____ iv.) has plasma for an extracellular matrix
_____ v.) associated with fat and fuel reserve
_____ vi.) has an extracellular matrix consisting of mineral hydroxyapatite
_____ vii.) binds epithelium to underlying tissue
_____ viii.) has an extracellular matrix consisting of collagen fibers and chondroitin sulfate
_____ ix.) found in the nose and ears
_____ x.) characterized as a sparse population of cells that secrete and are scattered through an extracellular matrix
11. Fill in the chart below.
| Muscle Type | striated or non-striated | shape | voluntary or involuntary | location in the body |
| a) skeletal | . | . | . | . |
| b) cardiac | . | . | . | . |
| c) smooth | . | . | . | . |
12. What contractile proteins do all muscle types have?
13. Diagram a typical neuron and label the dendrites, cell body, and axon.
14.
a) Define homeostasis -
b) Homeostatic control systems generally consist of three parts. What are they and what function do each serve?
15.
a) The thermostat in your house is set at 75 degrees. The actual temperature inside your house is 80 degrees and your heater kicks on. Is this an example of positive or negative feedback? EXPLAIN.
b) You just came home from Two Keys Tavern and you are hanging over the toilet vomiting your guts out. Would you consider this positive or negative feedback? EXPLAIN.
16. In the graph below, which line describes an endotherm?