Lipids and Fatty Acids Quiz

<p>Acetone (B)</p> Signup and view all the answers

<p>Transporting oxygen throughout the blood (B)</p> Signup and view all the answers

<p>Cis-fatty acids have a 'kink' in their structure due to the hydrogen atoms being on the same side of the double bond, while trans-fatty acids have a straight structure with hydrogen atoms on opposite sides. (C)</p> Signup and view all the answers

<p>Saturated fatty acids are more compact and can pack more tightly together, leading to stronger London dispersion forces. (C)</p> Signup and view all the answers

<p>Saturated fatty acids contain only single bonds between carbon atoms, while unsaturated fatty acids contain at least one double bond. (B)</p> Signup and view all the answers

<p>Triglycerides are composed of glycerol and three fatty acid chains, and the type of fatty acid present determines whether the triglyceride is a solid fat or a liquid oil. (A)</p> Signup and view all the answers

<p>Partial hydrogenation converts cis-double bonds to trans-double bonds, leading to a more linear structure and increased melting point. (B)</p> Signup and view all the answers

<p>Trans-fatty acids can raise LDL cholesterol levels and lower HDL cholesterol levels, increasing the risk of heart disease. (A)</p> Signup and view all the answers

<p>Cholesterol is an essential steroid that plays a critical role in cell membrane structure and hormone production. (B)</p> Signup and view all the answers

<p>Cholesterol has a nonpolar hydrocarbon backbone that interacts poorly with water. (A)</p> Signup and view all the answers

<p>To synthesize other steroids (D)</p> Signup and view all the answers

<p>Primary energy source for the body (C)</p> Signup and view all the answers

<p>The abundance of nonpolar rings and hydrocarbon chains (A)</p> Signup and view all the answers

<p>It can lead to the formation of gallstones and plaques in arteries (B)</p> Signup and view all the answers

<p>It forms the myelin sheaths that insulate nerve fibers (B)</p> Signup and view all the answers

Biomolecules soluble in organic solvents but not in water.

Includes fatty acids, waxes, triglycerides, phospholipids, glycolipids, and steroids.

Fatty acids with only single bonds, solid at room temperature.

Fatty acids with one or more double bonds, liquid at room temperature.

Polyunsaturated fatty acids that the body cannot synthesize on its own.

Cholesterol consists of hydrophobic nonpolar rings and a hydrophilic OH group.

Cholesterol strengthens cell membranes and is essential for nerve transmission.

Cholesterol is manufactured by the liver, regardless of dietary intake.

Cholesterol is a precursor for bile salts, steroid hormones, and vitamin D.

Excess cholesterol can lead to gallstones and arterial plaques.

An essential fatty acid lacking in infants can cause skin dermatitis.

Another essential fatty acid; deficiency can lead to skin issues in infants.

Fatty acids with hydrogen atoms on the same side of a double bond, causing a 'kink'.

Fatty acids altered by partial hydrogenation; hydrogen atoms on opposite sides, creating a straighter chain.

Fats and oils made of three fatty acids linked to glycerol by ester bonds.

The process of adding hydrogen to unsaturated fats, creating trans fats that increase melting point.

A type of steroid commonly found in the body, produced in the liver, crucial for various functions.

Trans fats can raise LDL cholesterol and lower HDL cholesterol, affecting health.