1. Cells Are Typically Small. Explain What Limits Cell Size and Why

BSC1005 400 – Assignment I

1.  Cells are typically small. Explain what limits cell size and why.

2.  Compare and contrast bacterial (prokaryotic), plant and animal cells. (p.74)

3.  Explain the structure of the plasma membrane. Include descriptions of the proteins present and the reason some substances pass through while others do not.

4.  Give the relationship between the endoplasmic reticulum, the golgi apparatus and lysosomes. Detail the function of each one.

5.  Describe the structure and function of mitochondria and chloroplasts. Why are they grouped together?

6.  Describe the cytoplasm and cytoskeleton.

7.  Describe the nucleus and nucleolus and give the primary functions of each.

8.  Explain the effect a hypertonic, hypotonic and isotonic solution would have on a red blood cell. Why?

9.  Explain the sodium-potassium pump. Where is it? What does it do?

10.  List the 4 tissue types and outline their general characteristics and functions. (CH.26)

11.  List the four types of adult teeth and their function. Give the number of baby and adult teeth.

12.  Describe the digestive action in the stomach and the components of gastric juice and their functions.

13.  Give the location and function of these structures: esophageal sphincter, pyloric sphincter, gall bladder, appendix, anal sphincter

14.  Name the enzymes and the location of the digestion of lipids, proteins and starches.

15.  What do the nasal passages do to the air we inhale?

16.  Describe the path of a breath of air from the nose to the alveoli.

17.  Define internal and external respiration and explain the process.

18.  What are the major functions of the circulatory system? The major components?

19.  Describe the path of blood through the heart starting with the vena cava and ending with the aorta.

20.  What are the SA and the AV nodes? What is the function of a Purkinje fiber?

21.  What are the two heart sounds? Their source? What is a murmur?

22.  Explain the physiology behind the two numbers in a blood pressure. What is considered normal? What is hypertension?

23.  Describe blood plasma and its makeup.

24.  Describe and give the function of: erythrocytes, neutrophils, B-lymphocytes, blood platelets

25.  What causes heart attack and stroke? How can they be avoided?