Review (HAP) Unit 1 Concept 1 - Intro to Anatomy

Which cellular organelle is responsible for converting nutrients into energy?

• Lysosome
• Mitochondria
• Vesicle
• Ribosome

What is the primary function of a lysosome?

• Energy production
• Protein synthesis
• Digestion of cellular materials
• Water storage

Which macromolecule serves as the main structural component of cell membranes?

• Carbohydrates
• Lipids
• Nucleic acids
• Proteins

What is the primary role of nucleic acids in cells?

• Energy storage
• Immediate energy use
• Genetic information storage and transmission
• Enzymatic catalysis

Which of the following is NOT a function of proteins in living organisms?

• Enzymatic activity
• Structural support
• Storage of genetic information
• Signal transduction

How do enzymes affect biochemical reactions?

• By increasing the activation energy
• By lowering the activation energy
• By consuming the reactants
• By changing the products

What characteristic allows enzymes to be highly specific in their function?

• Their ability to change shape
• Their active sites
• Their protein composition
• Their cellular location

What can cause an enzyme to lose its function?

• Increased substrate concentration
• Decreased substrate concentration
• Changes in pH or temperature
• Presence of sugars

Which statement about enzymes is FALSE?

• Enzymes are consumed in the reactions they catalyze
• Enzymes can be reused
• Enzymes are mostly proteins
• Enzymes are biological catalysts

In the organizational hierarchy of living things, what level comes between organs and cells?

• Molecules
• Tissues
• Organelles
• Organ systems