Macromolecules Review

Match the following macromolecules to their monomers:

• Fatty acids

• Nucleic acids

• Monosaccharides

• Lipids

• Nucleotides

• Carbohydrates

• Amino acids

• Proteins

Tags

HS-LS1-6

What macromolecule stores hereditary information?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Answer explanation

Nucleic acids, DNA and RNA are responsible for storing the cell's hereditary information.

Tags

HS-LS1-6

One of the functions of carbohydrates is to provide ​ (a)   term energy. On the other hand, lipids provide ​ (b)   term energy.

• short
• long

Answer explanation

I always remember because carbohydrates can be shortened into "carbs"

and Lipids starts with "L" just like "long"

Tags

HS-LS1-6

Which of the following elements is found in proteins but not found in carbohydrates or lipids?

• Oxygen

• Nitrogen

• Hydrogen

• Carbon

Answer explanation

Carbohydrates: CHO

Lipids: CHO

Proteins: CHON

Nucleic acids: CHONP

Tags

HS-LS1-6

Both Carbohydrates and Lipids are made of the same 3 elements (Carbon, Hydragon, and Oxygen) but they have different functions. How is it possible for two macromolecules to be made of the same elements but do different jobs?

Answer explanation

Even though they are made of the same elements, the shape of carbohydrates and lipids are different. The elements are arranged into hexagons for carbohydrates and into long chains for lipids.

Structure determines functions, therefore, the difference in the shapes of the macromolecules means they do different things.

Tags

HS-LS1-6

Match the following Macromolecules to their pictures.

• Carbohydrate

• 
• Lipid

• 
• Protein

• 
• Nucleic acid

• 

Tags

HS-LS1-6

Which of the following is an example of a carbohydrate?

• Cellulose

• Oil

• Enzyme

• RNA

Answer explanation

Many carbohydrates have names that end in -ose.

Cellulose

Glucose

Fructose

Amylose... etc.

Tags

HS-LS1-6

Nucleic acids, including DNA and RNA, are the only macromolecule that contains ​ (a)  

• phosphorous
• carbon
• oxygen

Answer explanation

Carbohydrates: CHO

Lipids: CHO

Proteins: CHON

Nucleic acids: CHONP

Tags

HS-LS1-6

Select ALL the correct answers: Which of the following are examples of lipids?

• Phospholipids

• Enzymes

• Triglycerides

• Amylose

Answer explanation

Triglycerides are made of 3 fatty acids. Phospholipids have 2 fatty acid tails.

Tags

HS-LS1-6

A monomer is ​ (a)   building block of a macromolecule. A polymer is made of ​ (b)   repeating units.

• one
• many

Tags

HS-LS1-6