Lipids in Body

Saturated fats are __________ at room temperature.

• liquid

• solid

The characteristic that all lipids have in common is----

• made of lots of double bonds
• acidic when mixed with water
• no high energy content
• do not dissolve in water

The phospholipid bilayer comprises what part of the cell?

• cytoplasm
• cell membrane
• cytoskeleton
• nuclear membrane

Part of a phospholipid molecule can mix with water, but the other part cannot. This means the molecule is

• hydrophobic

• hydrophilic

• amphipathic

• ambidextrous

Under basic conditions, lipid molecule hydrolysis produces

• Glycerol + Water

• Glycerol + Fatty acids

• Glycerol + Fatty acid salts

• Water + Fatty acids

The illustration is a

• Glycerophospholipid

• Sphingoglycolipid

• Sphingophospholipid

• Triacylglycerol

Which of the following facts is not TRUE about lipids?

• more double bonds, increase in melting point

• sparingly soluble in water but insoluble in organic solvents

• act as thermal insulators

• solubility decreases with increasing carbon chain length

Fatty Acids differ in there chain length and their

• protein carriers

• Side chains

• energy level

• degree of saturation

What lipoprotein is responsible for transporting fat in blood?

• VLDL

• Chylomicrons

• HDL

• LDL

Trans Fatty Acids are formed due to the partial reduction of polyunsaturated oils by hydrogenation.

• True

• False