Macromolecules Worksheet

Which of the following types of molecules has a primary function of providing an easily available energy source for living things?

• Proteins

• Carbohydrates

• Fats

• Amino acids

Tags

NGSS.MS-LS1-7

Listed below are some functions of macromolecules. 1. Speed up chemical reactions 2. Control cell growth 3. Act as protective cushions 4. Transmit genetic information 5. Provide energy storage Which pair of functions is associated with lipids?

• 3 and 4

• 1 and 5

• 3 and 5

• 2 and 4

Amy is writing a conclusion for a macromolecule lab. Which statement should she include in her conclusion about nucleic acids?

• Carbon dioxide is the monomer of nucleic acids.

• Peptide Bonds form the monomer of nucleic acids.

• Amino Acids are the monomers of nucleic acids.

• Nucleotides are the monomers of nucleic acids.

Proteins are composed of which molecules?

• Amino acids

• Fatty acids

• Monosaccharides

• Nucleic acids

Tags

NGSS.HS-LS1-6

What is the function of a nucleic acid?

• To provide readily available energy

• To store energy

• To store genetic information

• To build and bind

Tags

NGSS.HS-LS3-1

A scientist performs a Biurets test on a mystery substance. After adding the Biurets reagent to the mystery substance, the solution changes to a purple color, a positive test for protein. Which conclusion can be drawn about this mystery substance?

• The substance is most likely chicken.

• The substance is most likely rice.

• The substance is most likely sugar.

• The substance is most likely water.

According to the graph below, what is the optimal pH for the action of intestinal protease?

• 5

• 8

• 10

• 12

A scientist examining the graph in FIG 2.5.1 compares reaction B to the original reaction. Which statement best supports the difference observed between the dotted lines?

• Lipids are catalysts to this reaction.

• Enzymes are increasing the activation energy needed for the reaction.

• Substrates are bonding before the reaction process.

• Enzymes are decreasing the activation energy needed for the reaction.

Enzymes and substrates are considered to be like a lock and key because

• Enzymes will react on any substrates.

• Enzymes will react on any products.

• Enzymes will only react with specific substrates.

• Enzymes will only react with certain products.

Which of the following best explains how the structure of lipids is related to their role in energy storage?

• Lipids contain nucleotides that help store genetic energy.

• Lipids are made of simple sugars, which release energy when broken down.

• Lipids have long hydrocarbon chains that store a lot of energy.

• Lipids are made of amino acids that store energy.