What chemical process provides us with the energy required for active transport?

Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.

b 04545

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.