Biology Macromolecules

Animals breathe in oxygen (O2). This O2 is used in their bodies in the breakdown of the glucose and fatty acids. The main function of the breakdown of glucose and fatty acids is to provide energy for chemical reactions by producing which of the following?

• enzymes

• deoxyribonucleic acid

• adenosine triphosphate 

• proteins

Tags

NGSS.HS-LS2-3

NGSS.HS-LS1-7

NGSS.HS-LS2-5

What biological macromolecule is generally insoluble in water and functions in an important role in biological membranes?

• carbohydrates

• proteins

• nucleic acids

• lipids

Which of the following best describes the major function of the biological macromolecule DNA?

• provides the energy required by the cell

• synthesizes RNA

• stores information that translates into making proteins 

• decreases the activation energy required for a reaction

Tags

NGSS.HS-LS1-1

Which answer best describes how carbohydrates and lipids are similar?

• Both contain fats and oils and have an important structural function within the cell.

• Both are polymers that are linked by peptide bonds.

• Both are nucleic acids involved in making ATP.

• Both contain carbon, hydrogen, and oxygen, and are broken down as a source of energy.

Tags

NGSS.HS-LS2-3

Which biological molecule transports substances, speeds up reactions, makes hormones, and provides structural support?

• carbohydrates

• proteins 

• deoxyribonucleic acid

• adenosine triphosphate

Tags

NGSS.HS-LS1-1

Nucleotides consist of a phosphate group, a nitrogenous base, and which of the following?

• fatty acids

• an amino acid

• a 5-carbon sugar 

• glycerol