401002: Bioscience - Cholesterol - Coronary Artery Disease: Modifiable Risk Factors - Science and Maths Assignment Help

Assignment Task:

Task:

Part B
Task 1: Feedback review on Part A
You must complete the feedback on Part A of this assignment located at the start of the Assignment 2: Part B template (DOC 49 KB) before you complete Questions 2 and 3. 
Task 2: Short-answer questions.

Q2. What is a normal oxygen saturation level and why must oxygen saturation be kept in homeostatic range? Trace the pathway of oxygen delivery to cells in the body (commencing at the alveoli until it enters the cells). How does the knowledge of oxygen transport relate to interpreting a patient’s oxygen saturation reading? (400 words, 10 marks)

Q3. Cardiovascular disease is a national health priority effecting many Australians. A healthy eating pattern can contribute to maintaining a healthy cardiovascular system. An important part of this eating pattern is to replace saturated fats with unsaturated fats.  Please answer the following: (200 words, 5 marks)

? Name 2 dietary sources of saturated fats and describe the impact a diet high in saturated fats can have on the structure and function of the cardiovascular system.
? Name 2 dietary sources of unsaturated fats and describe the role unsaturated fats play in a healthy cardiovascular system.

Task 1- Feedback review on Part A
This activity is to be completed and submitted as part of Assignment 2 (Part B). This activity should bring to your attention the importance of referencing and paraphrasing and help to improve your marks awarded for Academic Style and Referencing. Use your submitted Assignment 2 (Part A) when considering the following questions. Please highlight or underline your chosen answer.

a) Did you include in-text references in your answer and a reference list at the end?
a) Yes
b) No
b) What is the purpose of including in-text references and a reference list in an assessment?
a) Provide evidence for the source of the information
b) Allows information to be included without paraphrasing
c) Permits information to be directly copied without rewriting

c) What is the purpose of submitting your assessment through Turnitin?
a) Allows you to identify material that needs to be referenced
b) Allows you to identify material that needs to be paraphrased
c) Allows you to identify incorrect information that should be removed

Cholesterol

What We Know
› Cholesterol is a molecule that is a vital constituent of cell membranes and an essential substrate in the synthesis of vitamin D and steroid hormones (e.g., estradiol, testosterone, aldosterone, and cortisol). Cholesterol is also a component of bile, which facilitates the absorption of fats and fat-soluble vitamins. The body can synthesize cholesterol. It can also utilize the cholesterol provided by the diet which is partially absorbed in the intestinal tract and transported into the liver, the organ that controls the concentration of cholesterol in the blood. Excessive cholesterol is secreted into the bile; part of it is then excreted into the feces while the rest is reabsorbed and return to the liver.

Coronary Artery Disease: Modifiable Risk Factors
What We Know
› Coronary artery disease (CAD) is a potentially life-threatening condition characterized by pathologic changes in the walls of the coronary arteries (i.e., arteries that supply blood to the heart muscle), usually due to a buildup of atherosclerotic plaque, that results in coronary blood flow obstruction. Patients with CAD can be asymptomatic or experience angina pectoris (i.e., chest pain; commonly called angina) or acute myocardial infarction (AMI). Angina is the most common symptom of CAD.(5)

(For information on angina, see

Quick Lesson About ... Angina Pectoris )
• CAD is the leading cause of disability and death in developed countries(1,2)
› Cardiac risk factors are conditions or behaviors that increase the risk of developing CAD. Although everyone is at risk for CAD to some degree, certain factors substantially increase risk. In general, the greater the number and severity of individual risk factors, the greater the risk of developing CAD(1,2,4,6)

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