Lecture #2 (REDO): Biomolecules & Metabolism

Multiple Choice

What are macromolecules?

• Molecules that are only involved in energy production.
• Large, complex molecules essential for life.

• Only found in plants and not in animals.
• Small, simple molecules that are not essential for life.

Multiple Choice

Which element's bonding properties allow it to create macromolecules?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

Multiple Select

What are the four biological macromolecules?

• Nucleic Acids

• Water
• Lipids

• Proteins

• Carbohydrates

Multiple Choice

What is metabolism?

• Metabolism refers to the physical exercise performed by an organism.
• Metabolism is the process of breathing in oxygen.
• Metabolism is the chemical reactions that occur within a living organism.

• Metabolism is the way organisms reproduce and grow.

Multiple Choice

What is the difference between a monomer and polymer? How are they related?

• A monomer is a complex molecule; a polymer is a single atom.
• Polymers are made up of multiple types of monomers that cannot combine.
• Monomers are larger structures, while polymers are smaller units. Polymers combine to form monomers.

• A monomer is a single molecule; a polymer is a chain of monomers. Monomers combine to form polymers.

Multiple Choice

What are the two types of metabolism?

• Digestion and absorption
• Photosynthesis and respiration
• Catabolism and anabolism

• Monomers and polymers

Multiple Choice

How does a catabolic reaction happen?

• A catabolic reaction occurs only in the presence of oxygen, producing carbon dioxide.
• A catabolic reaction builds larger molecules from smaller ones, consuming energy via a hydrolysis reaction.

• A catabolic reaction happens via a hydrolysis reaction, breaking down larger molecules into smaller ones, releasing energy.

• A catabolic reaction is a process that does not involve any energy changes, primarily condensation reactions.

Multiple Choice

How are anabolic reactions accomplished?

• Anabolic reactions break down complex molecules into simpler ones via condensation reactions

• Anabolic reactions occur without the use of energy via hydrolysis .

• Anabolic reactions are solely responsible for energy production through the use of condensation reactions.

• Anabolic reactions are accomplished by using energy and a condensation reaction to form molecules from simpler ones.

Match

Match the Monomer to the Polymer for the four macromolecules

• Monosaccharides

• Amino Acids

• Nucleotides

• Fatty Acids & Glycerol

Carbohydrate (polysaccharides)

Proteins (polypeptides)

Nucleic Acids (DNA & RNA)

Lipids (ex: Triglycerides)

• Carbohydrate (polysaccharides)

• Proteins (polypeptides)

• Nucleic Acids (DNA & RNA)

• Lipids (ex: Triglycerides)