Cellular Level of Organization Quiz

What are the three main subdivisions of a cell discussed in the lecture?

• Nucleus, plasma membrane, and cytoplasm

• Mitochondria, ribosomes, and endoplasmic reticulum

• Golgi apparatus, lysosomes, and peroxisomes

• Cell wall, chloroplasts, and vacuole

What is the primary function of the plasma membrane?

• To produce energy for the cell

• To provide a barrier between the cell's internal and external environments

• To store genetic information

• To synthesize proteins

What is the plasma membrane primarily composed of?

• Cholesterol and enzymes

• Phospholipids forming a double lipid bilayer

• Nucleic acids and proteins

• Proteins and carbohydrates

How do the phosphates and fatty acid tails in the plasma membrane interact with water?

• Both phosphates and fatty acid tails are hydrophobic

• Phosphates are hydrophobic and fatty acid tails are hydrophilic

• Phosphates are hydrophilic and fatty acid tails are hydrophobic

• Both phosphates and fatty acid tails are hydrophilic

What makes the plasma membrane dynamic?

• The absence of any structural components

• Its rigid structure

• The movement of lipids and the presence of proteins and cholesterol

• The presence of static proteins