Macromolecule Quizs

What is an organic molecule?

• A molecule that contains carbon.

• A molecule that contains only hydrogen.

• A molecule that is found in inorganic compounds.

• A molecule that is always solid at room temperature.

What are macromolecules?

• Small-sized molecules such as amino acids and sugars.

• Large-sized molecules such as proteins, carbohydrates, lipids, and nucleic acids. Built by monomers.

• Simple molecules that do not contain carbon.

• Molecules that are only found in living organisms.

What do enzymes do?

• Increase the activation energy needed for reactions to occur.

• Lower the activation energy needed for reactions to occur.

• Catalyze reactions without any energy change.

• Prevent reactions from occurring altogether.

What are examples of lipids?

• Cell membrane, cholesterol, fats, oils, and waxes.

• Proteins, carbohydrates, vitamins, and minerals.

• Nucleic acids, amino acids, sugars, and starches.

• Enzymes, hormones, fibers, and salts.

What is an active site?

• The location where the substrate binds (attaches) to the enzyme.

• The part of the enzyme that is not involved in the reaction.

• The area where the enzyme is produced in the cell.

• The site where inhibitors can bind to the enzyme.

What does optimum mean?

• Best.

• Average.

• Worst.

• Satisfactory.

What is the monomer of carbohydrates?

• Disaccharide

• Polysaccharide

• Monosaccharide

• Oligosaccharide

What do enzymes require to function properly?

• Specific shapes and ideal (optimum) temperature and pH.

• High concentrations of substrate only.

• A constant supply of energy from ATP.

• An absence of inhibitors.

What is the function of proteins?

• Control cell’s activities, build muscles, bone, skin, and other tissues.

• Store genetic information in cells.

• Transport oxygen in the blood.

• Provide energy for cellular processes.

What is the function of lipids?

• Reserves or stores long-term energy, used for cell membrane structure, protection, and transport.

• Provides immediate energy for cellular processes.

• Acts as a primary source of genetic information.

• Facilitates the transport of oxygen in the bloodstream.