The group that had the lowest level of HDL (“good” cholesterol). Concept introduction: Lipoproteins are carriers of hydrophobic molecules, in the extracellular matrix and the blood. They are made of phospholipids, cholesterol, and proteins. Proteins are made of amino acids. Low density lipoprotein (LDL) transports fat, essentially cholesterol molecules, in an aqueous medium. HDL carries cholesterol to the liver for breaking it down to simple forms, where it is converted into bile acids and sent to the intestine for excretion. Trans fatty acids or t rans -unsaturated fatty acids or trans fats are fatty acids that have carbon-carbon double bonds with trans configuration. Trans fats have unusual trans configuration.

Question

Cholesterol that is made by the liver or that enters the body from food does not dissolve in blood, so it is carried through the bloodstream by lipoproteins. Low-density lipoprotein (LDL) carries cholesterol to body tissues such as artery walls, where it can form deposits associated with cardiovascular disease. Thus, LDL is often called "bad" cholesterol. High-density lipoprotein (HDL) carries cholesterol away from tissues to the liver for disposal, so HDL is often called "good" cholesterol. LDL levels were highest in the diet containing primarily ______. A. cis fatty acids B. saturated fats C. trans fatty acids

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Chapter 3, Problem 2DAA

Summary Introduction

To explain: The group that had the lowest level of HDL (“good” cholesterol).

Concept introduction: Lipoproteins are carriers of hydrophobic molecules, in the extracellular matrix and the blood. They are made of phospholipids, cholesterol, and proteins. Proteins are made of amino acids. Low density lipoprotein (LDL) transports fat, essentially cholesterol molecules, in an aqueous medium. HDL carries cholesterol to the liver for breaking it down to simple forms, where it is converted into bile acids and sent to the intestine for excretion. Trans fatty acids or trans-unsaturated fatty acids or trans fats are fatty acids that have carbon-carbon double bonds with trans configuration. Trans fats have unusual trans configuration.

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