the cell

• • Some are unicellular (made of just one cell, for example bacteria).

  • Some are multicellular (made of many cells, for example humans.)
• A cell wall is a structural layer that surrounds some cell types, found immediately outside the cell membrane
• Cell walls also protect against pathogens such as viruses or bacteria.
•  the nucleus contains all of the cell's chromosomes, which encode the genetic material.
• Ribosome – A site of protein synthesis within the cell.
• The cell membrane,is found in all cells and separates the interior of the cell from the outside environment.
• Vacuole - A fluid-filled sac used to store substances like water, waste products, pigments, and enzymes.
• Chloroplast - An organelle found only in plant cells responsible for photosynthesis.
• Mitochondria - The powerhouse of the cell where energy production takes place.