Cell functions

• what does the cell membrane control?


  What enters and exits the cell.
• What do ribosomes make?


  Proteins
• What does mitochondria do?


  release energy
• What takes place in the cytoplasm?


  chemical reactions
• What is found in the nucleus?


  DNA
• What is the function of mitochondria?


  respiration
• What controls the rate of chemical reactions in the cytoplasm?


  enzymes
• What happens in the mitochondria?


  release energy
• For what process do cells use oxygen?

  respiration
• How do the mitochondria help the sperm to carry out its function?

  Energy production