Lipids

Which fat has only single bonds between the carbon atoms in the fatty acid?

• saturated

• unsaturated

• polyunsaturated

• monounsaturated

Which statement is true?

• Lipids are a type of fat.

• Fats are a type of lipid.

• Fats and lipids are unrelated.

• All lipids are fats, and all fats are lipids.

Which describes the basic structure of a fatty acid?

• a long carbon and hydrogen chain and a phosphate group

• a long carbon and hydrogen chain and a glycerol

• a long carbon and hydrogen chain and a carboxyl group

• a long carbon and hydrogen chain and an alcohol

Lipids exhibit different characteristics based on their structures. The image shows different examples of lipids, such as solid butter and liquid canola oil. Which type of bond is found in many carbon-to-carbon bonds in canola oil, but very few carbon-to-carbon bonds in butter?

• C–C

• C=C

• C=H

• C–H

The diagram shows the general structure of a lipid, which consists of two main parts. Which part is circled?

• alcohol group

• fatty acid

• carboxyl group

• unsaturated lipid

In an oil spill, why does the oil not mix with the seawater?

• Lipids are hydrophobic.

• Lipids are hydrophilic.

• Lipids are saturated.

• Lipids are unsaturated.

Tags

NGSS.HS-PS1-2

Which fat is most likely a solid at room temperature?

• one that is saturated

• one that is unsaturated

• one with double bonds

• one that contains no hydrogen

If a carbon atom is bonded to two hydrogen atoms and two carbon atoms, what type of bond must exist between the carbon atoms?

• single

• double

• triple

• quadruple

Which is a main function of lipids?

• providing energy storage

• transmitting genetic information

• forming bone and muscles

• fighting infection and disease

Which is one function of steroids?

• waterproofing leaves and feathers

• insulating and protecting bones and organs

• serving as chemical messengers

• providing energy storage