1.1 - Cell Structure

• What is a cell?

  A cell is the basic structural and functional unit of all living organisms.
• What are the similarities between Animal and Plant Cells?

  Both have a cell membrane, nucleus, cytoplasm, mitochondria and ribosomes
• What is a cell membrane?

  A thin, flexible barrier that surrounds and controls which substances can pass in and out of the cell.
• What is a nucleus‘ function?

  Contains genetic material of cell.
• What is the cytoplasm?

  jelly like substance that hosts all chemical reactions
• What is the function of mitochondria?

  Mitochondria are the site of aerobic respiration, so they release energy from the cell.
• What is a ribosome?

  Organelle which is the site of protein synthesis.
• What are differences between plant and animal cells?

  Plant cells also have:

  • rigid cell wall (for support and structure, made from cellulose)
  • chloroplasts (photosynthesis)
  • permanent vacuole (contains cell sap)
• Name two eukaryotic cells

  Plants

  Animals
• Are bacteria prokaryotes or eukaryotes?

  Prokaryotes
• True or False? Bacteria have both a cell membrane and a cell wall.

  True
• Are bacterial cells larger or smaller than animal cells?

  Smaller