AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is NOT scientific evidence for health risks associated with trans fats:
A
Increased HDL cholesterol
B
Increased LDL cholesterol
C
Increased coronary heart disease
D
Increased coronary events (e.g. heart attacks)
Explanation: 

Detailed explanation-1: -Trans fats increase LDL cholesterol and decrease HDL cholesterol, which can increase the risk of heart attack or stroke.

Detailed explanation-2: -Trans fats raise your LDL (bad) cholesterol. They lower your HDL (good) cholesterol. High LDL along with low HDL levels can cause cholesterol to build up in your arteries (blood vessels). This increases your risk for heart disease and stroke.

Detailed explanation-3: -Answer and Explanation: The statement that is INCORRECT about trans fats is A) Trans fats decrease the level of cholesterol in the blood. Trans fats raise the overall levels of cholesterol in the blood, which is the LDL cholesterol, or bad cholesterol.

Detailed explanation-4: -Abstract. Trans fatty acids raise plasma low-density lipoprotein (LDL) cholesterol levels in volunteers when exchanged for cis unsaturated fatty acids in the diet. In addition, trans fatty acids may lower high-density lipoprotein (HDL) cholesterol levels and raise triglyceride and lipoprotein(a) levels in plasma.

Detailed explanation-5: -Studies in cultured liver cells indicate that industrial trans fatty acids stimulate the cholesterol synthesis pathway by activating SREBP2-mediated gene regulation.

There is 1 question to complete.