Plasma membrane: Flexible and does not mix with water
Leukocyte: Can reach out with its cell membrane to capture invaders; contains many lysosomes (organelles filled with digestive enzymes)
Cardiac muscle cells: Contain many mitochondria
Nucleus: Contains the cell's DNA, separating it from the rest of the cell
Neurons: Long and branching, with receptor proteins on the outside
Intestinal cell: Contains many transport proteins and has long finger-like structures called microvilli
Carbon atoms: Can bind to 4 other atoms
Mitochondria: Full of ATP synthase, with lots of folds to increase surface area for chemical reactions
Can break down captured invaders after it "eats" them to defend the body
Can absorb nutrients from outside the body and bring them inside the body
Constantly moving in order to pump blood through the body
Form complex molecules
Can connect with many other cells all over the body to send signals between the body and the brain
Separates the inside of the cell from the environment; changes shape to let nutrients in and wastes out
Makes sure the right proteins are made at the right time
Generate energy for the cell
