AP Biology Unit 2: Cell Structure and Function Quiz

What is the primary focus of Unit 2 in AP Biology?

• Simple fact recall about organelles

• In-depth understanding of cell structure and function

• Review of chemistry principles

• Introduction to basic biology concepts

Which macromolecules are common to all living organisms?

• Lipids, proteins, vitamins, and nucleic acids

• Carbohydrates, nucleic acids, vitamins, and minerals

• Vitamins, minerals, proteins, and lipids

• Proteins, lipids, nucleic acids, and carbohydrates

What is the main function of ribosomes in the cell?

• Photosynthesis

• Protein synthesis

• Lipid synthesis

• DNA replication

Which organelle is responsible for packaging and sorting proteins and lipids?

• Golgi apparatus

• Mitochondria

• Endoplasmic reticulum

• Lysosome

What is the primary role of mitochondria in the cell?

• Lipid storage

• Photosynthesis

• Protein synthesis

• Cellular respiration

How do small nonpolar molecules like oxygen cross the cell membrane?

• Through active transport

• Via facilitated diffusion

• Using carrier proteins

• Directly through the phospholipid bilayer

What is the difference between passive and active transport?

• Passive transport moves molecules without energy, active transport requires energy

• Both require energy but in different forms

• Active transport moves molecules from high to low concentration, passive transport does the opposite

• Passive transport requires energy, active transport does not

Which type of cell lacks a nucleus and membrane-bound organelles?

• Eukaryotic cells

• Prokaryotic cells

• Animal cells

• Plant cells

What is the significance of a high surface area to volume ratio in cells?

• It increases the cell's energy production

• It reduces the cell's metabolic rate

• It allows for faster DNA replication

• It enhances the cell's ability to exchange materials efficiently

Which of the following is a characteristic of eukaryotic cells?

• Lack of nucleus

• Smaller size compared to prokaryotic cells

• Circular DNA

• Presence of membrane-bound organelles