Unit 2 Building Blocks of Life

Which of the following compounds is organic?

• 
• 
• NaCl

• 

Why is carbon essential to life on Earth?

• Animals need carbon in order to breathe.

• Plants use carbon to absorb water into their roots.

• Carbon can form compounds of many sizes and shapes.

• Carbon is the most abundant element on Earth.

True or false: Large molecules called monomers are made of smaller subunits called polymers.

• TRUE

• FALSE

Which of the following is most likely to be an energy source for the cells of a living thing?

• DNA

• enzymes

• amino acids

• disaccharide

Which term best describes the macromolecule shown?

Notice only C H O are present.....

• amino acid

• nucleic acid

• polysaccharide

• monosaccharide

List the following macromolecule with its corresponding monomer:

Carbohydrates

• Monosaccharide

• nucleotide

• No true monomer

• Amino Acid

List the following macromolecule with its corresponding monomer:

Protein

• Monosaccharide

• nucleotide

• No true monomer

• Amino Acid

List the following macromolecule with its corresponding monomer:

Nucleic Acid

• Monosaccharide

• nucleotide

• No true monomer

• Amino Acid

List the following macromolecule with its corresponding monomer:

Lipids

• Monosaccharide

• nucleotide

• No true monomer

• Amino Acid

Which of the following would a lipid most likely do in the body?

• provide quick energy for exercise

• store genetic information

• store energy for later use

• build muscle tissue