Question

5
multiple choice 10 points
which of the following statements about atherosclerosis is false?
it is an irreversible progressive process.
it starts with a fatty streak—an accumulation of lipoproteins.
it is a progressive process that begins at a young age.
heart disease, stroke, and peripheral vascular disease are all due to atherosclerosis.

6
multiple choice 10 points
what determines which type of cancer an individual is diagnosed with?
the tissue in which a cancer originates, or the primary site
the location where the cancer metastasizes
the initiating event agent
the type of stem cell that mutates

7
multiple choice 10 points
what causes hypertension?
a lack of antioxidants
excessively high diastolic blood pressure
pressure on the walls of the arteries that is great enough to damage them
an overabundance of micronutrients in the blood

Explanation:

Question 5

To determine the false statement about atherosclerosis:

• Atherosclerosis is irreversible and progressive (so first statement is true).
• It starts with fatty streaks (accumulation of lipoproteins, so second is true).
• It begins in youth (progressive from young age, third is true).
• While atherosclerosis contributes to heart disease, stroke, and peripheral vascular disease, not all cases of these are solely due to atherosclerosis (other factors can cause them). So the fourth statement is false.

To determine what determines cancer type:

• Cancer type is determined by the tissue of origin (primary site). Metastasis location is where it spreads, not the type. Initiating agent and stem cell type don't define the cancer type. So the first option is correct.

To determine hypertension cause:

• Lack of antioxidants isn't a direct cause. High diastolic BP is a sign, not a cause. Hypertension is high arterial pressure damaging walls (third option). Micronutrient overabundance isn't a cause. So the third option is correct.

Answer:

The option "Heart disease, stroke, and peripheral vascular disease are all due to atherosclerosis."

Question 6