Cells and Energy

The ability to do work or cause change.

• oxygen

• energy

• semipermeable

Your body needs a constant supply of energy.

• True

• False

When you eat, the food is broken down into what? (hint: They contain energy.)

• animal cells

• diffusion

• sugar molecules

Your cells transfer the energy in the sugar molecules to make a special compound called ATP.

• True

• False

When molecules move from an area that is crowded to an area that is less crowded. (hint: they spread out)

• diffusion

• active transport

• energy

The cell membrane never allows anything in or out of the cell.

• True

• False

The energy in ATP can be used by a cell to carry out life processes.

• True

• False

What goes through the cell membrane during Osmosis?

• water

• sugar

• chlorophyll

Passive transport moves molecules across the cell membrane without help.

• True

• False

What maintains the balance of water inside a cell?

• energy

• osmosis

• photosynthesis