1.1 cell structure

• unicellular


  one cell

  
• multicellular


  many cells

  
• microscopes


  instrument used to observe microscopic objects such as cells

  
• animal cells


  cells present in animals

  
• plant cells


  cells present in plants, have extra features to make their own food, some have chloroplasts some don't depending whether they need sunlight

  
• fungi cells


  cells present in fungi, very different to other cells as they are in a different kingdom

  
• bacterial cells


  cells present in bacteria, smaller, have tiny hairs to stick to other cells, gelatin-like capsule

  
• cells


  building block of all living things, make up tissues
• tissue


  group of cells that function as a unit, make up organs
• organs


  group of tissues that make a specialised unit to perform a task

  
• cell wall


  supports and provides structure for the cell (PFB)

  
• cell membrane


  controls entry/exit of substances (PAFB)

  
• vacuole


  storage (PFB)

  
• plant vacuole


  contains sap or water

  
• fungi vacuole


  contains small molecules (e.g, amino acids)

  
• bacterial vacuole


  larger than the others, contains ions and maintains water balance

  
• chloroplast


  site of photosynthesis (P)

  
• nucleus


  control centre containing dna (PAF)

  
• ribosomes


  site of protein synthesis (PAFB)

  
• cytoplasm


  site of chemical reactions (PAFB)

  
• plasmids


  small circular section of genetic material (B)

  
• flagellum


  whip-like tail to help it swim/move/turn (B)

  
• amino acids


  molecules that combine to form proteins