Biochemistry Week 4 - Lipid Metabolism

They transport dietary lipids from the intestines to other parts of the body.

They are enzymes that break down stored fat for energy.

They convey carbon atoms to the citric acid cycle.

They synthesize cholesterol in the body.

They are carboxylic acids with aliphatic chains.

They can have straight or branched chains.

Cis bonds have bulky substituents on the same side of the double bond.

Nature normally prefers trans configuration.

Increased LDL aggregation and more saturated triglycerides

Decreased LDL aggregation and more unsaturated triglycerides

No changes in LDL aggregation

Increased HDL particles only

Reduce inflammation

Increase inflammation

Mainly found in land plants

Increase cholesterol synthesis

They store energy

They form cell membranes

They act as enzymes

They transport oxygen

It is synthesized in the liver

It is needed for cell membranes

It clogs arteries when in high levels

It is a carbohydrate

Cholesterol and saturated fats

Proteins and vitamins

Carbohydrates and minerals

Water and fiber

Liver (beef)

Large egg

Lobster

Fried chicken

Lingual lipase, gastric lipase, pancreatic lipase

Pepsin, trypsin, chymotrypsin

Amylase, maltase, lactase

Lipase, protease, nuclease

They surround nonpolar lipids with polar lipids and proteins for transport.

They are insoluble in water.

Their surface consists of polar lipids.

They transport lipids to body cells.

Chylomicrons

VLDL

LDL

HDL

A lipid made of glycerol and three fatty acids

A fat derivative where one fatty acid is replaced by a phosphate group and a nitrogen-containing molecule

A lipid found in cell membranes of all animal tissues

A biochemical assembly occurring between proteins and lipids