Question

1. energy & cell transport

needs energy: active transport, phagocytosis.
no energy: diffusion, osmosis, facilitated diffusion.
review questions:
which transport requires energy?
is osmosis active or passive?

Explanation:

Active transport and phagocytosis require energy as they move substances against a concentration gradient or engulf particles. Diffusion, osmosis, and facilitated - diffusion are passive processes that do not require energy as they move substances down a concentration gradient. Osmosis is a passive process where water moves across a semi - permeable membrane from an area of high water concentration to an area of low water concentration.

Answer:

1. Transport that requires energy: active transport, phagocytosis
2. Osmosis is passive.