Unit 2 Biomolecules

Which of the following best defines denature?

• An enzyme working in optimal conditions

• A substrate's shape changes to match the enzyme

• An enzyme's shape changes causing it to no longer catalyze reactions.

• An enzyme shape changes to match the substrate.

Answer explanation

Once the active site of an enzyme is changed enough, it can no longer bind with the specific substrate and will therefore not be able to complete the reactions.

Based on the graph, what is the optimal temperature for the enzyme?

Answer explanation

optimal = best

At what temperature does the enzyme denature?

Answer explanation

denature = destroyed and there will be no enzyme activity

Which biomolecule is the main component of the cell membrane? (NOTE: they all work together in the cell membrane but one makes up the bilayer)

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Select the FOUR most common elements in biomolecules:

• Oxygen

• Helium

• Hydrogen

• Carbon

• Nitrogen

Tags

NGSS.HS-LS1-6

Match the monomer with the correct macromolecule.

• Proteins

• Fatty Acids

• Lipids

• Monosaccharides

• Carbohydrates

• Nucleotides

• Nucleic Acids

• Amino Acids

Match each macromolecule with its function(s).

• Proteins

• Main source of energy

  Quick access energy

• Lipids

• Support structures (hair, muscles, cell membranes, skin)

  Speed up reactions (enzymes)

  Send messages (hormones)

• Nucleic Acids

• Stores excess energy

  Makes up cell membrane

  Insulation/Cushion

• Carbohydrates

• Stores and transmits genetic information

Drag the correct elements to each macromolecule:

Carbohydrates = ​ ​ ​ (a)   also written as ​ (b)  

Lipids = ​ (c)  

Proteins = ​ (d)  

Nucleic Acids = ​ (e)  

• CHO (1:2:1)

• CHO (1:2) with O way less

• CHON

• CHONP

What are the biomolecules that are not soluble in water because they are hydrophobic?

Label the cell membrane parts on the image.

c

b

a

Carbohydrate

Protein

Lipid