AP BIOLOGY

Detailed explanation-1: -Active transport moves molecules and ions from lower concentration to higher concentration with the help of energy in the form of ATP. On the other hand, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.

Detailed explanation-2: -Phagocytosis, pinocytosis, and sodium-potassium pump are examples of active transport while diffusion, facilitated diffusion and osmosis are examples of passive transport.

Detailed explanation-3: -The two types of passive transport are : Simple diffusion and facilitated diffusion .

Detailed explanation-4: -There are two types of active transport namely – Primary active transport and secondary active transport.

Detailed explanation-5: -Transport Across Membranes There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.