Summer School: Biomolecules

Which of the following best describes the primary function of carbohydrates in living organisms?

• Storing genetic information

• Providing energy

• Catalyzing chemical reactions

• Forming cell membranes

Tags

NGSS.MS-LS1-7

NGSS.MS-LS2-3

Which type of bond links amino acids together in a protein?

• Glycosidic bond

• Peptide bond

• Hydrogen bond

• Phosphodiester bond

Which of the following is a function of lipids in biological systems?

• Speeding up chemical reactions

• Storing genetic information

• Long-term energy storage

• Transporting oxygen

What is the main role of nucleic acids in cells?

• Providing structural support

• Storing and transmitting genetic information

• Breaking down toxins

• Transporting nutrients

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

Which process is responsible for breaking down glucose to release energy in cells?

• Photosynthesis

• Glycolysis

• Transcription

• Replication

Tags

NGSS.HS-LS1-7

Which statement best describes the function of enzymes in biological reactions?

• They slow down reactions

• They act as structural components

• They speed up reactions by lowering activation energy

• They store energy

Which of the following best explains why proteins have a wide variety of functions in cells?

• They are made only of carbon and hydrogen

• They have a unique sequence of amino acids that fold into specific shapes

• They are always found in the cell membrane

• They are not affected by temperature

Which of the following would most likely occur if an enzyme’s active site is altered?

• The enzyme will work faster

• The enzyme may not bind to its substrate

• The enzyme will become a carbohydrate

• The enzyme will store more energy

A scientist wants to increase the rate of a reaction catalyzed by an enzyme. Which strategy would be most effective?

• Decrease the temperature far below optimal

• Add more substrate up to a certain point

• Remove the enzyme

• Add a competitive inhibitor

Given a DNA sequence, explain how a change in one base pair could affect the protein produced.

• It will always make the protein longer

• It could change the amino acid sequence, possibly altering protein function

• It will have no effect on the protein

• It will turn the protein into a carbohydrate

Tags

NGSS.HS-LS3-2

NGSS.HS-LS1-1