Cell Structure and Function Quiz

• Active transport
• Phagocytosis
• Pinocytosis
• Passive transport

• It prevents water loss
• It stores energy
• It synthesizes DNA
• It supports processes like secretion and endocytosis

• Rigidity of lipids
• Polarity of lipids
• Cholesterol rigidity
• Quasi-fluid nature of lipids

• Unit membrane model
• Sandwich model
• Lattice model
• Fluid mosaic model

• They use ATP to pump ions across the membrane
• They create channels for water movement
• They engulf large particles
• They help move polar or large molecules across the membrane without using energy