biology

• What are the two types of cells 


  PROKARYOTIC or EUKARYOTIC.
• what are cells classed as either

  PROKARYOTIC or EUKARYOTIC.
• Eukaryotic cells are larger and more complex
• Prokaryotic cells are smaller and more simpler
• Nucleus - houses genetic material
• Cytoplasm - where chemical reactions occur
• cell membrane - controls what goes in and out of the cell
• mitochondria - site of aerobic respiration
• ribosomes - sites of protein synthesis
• vacuole - stores water, waste products and pigments
• chloroplast - site of photosynthesis
• cell wall - made up of cellulose and provides support and structure to the cell
• what organelles are not in an animal cell

  cell wall, vacuole and chloroplast
• Plant and Animal cells are Eukaryotic 
• bacterial cells are Prokaryotic
• what are the two different types of microscopes.

  electron and light microscope.
• what is a pro about a light microscope


  can see living cells
• what is a con of an electron microscope 


  carnt see living cells
• what is a pro about an electron microscope 


  higher magnification
• what is a pro of a light microscope

  pass light through specimen
• what is ment by resolution 


  the ability to distinguish two separate points
• what are the different parts of a microscope 


  eye peice lens,lenses course adjustment ,clip,lamp,fine adjustment knob
• magnification

  how much bigger an image is compared to its actual size
• how do we work out the total magnification

  eye piece lens x objective lens
• how do we work out the size of an object

  size of image x magnification
• what is metabolism 


  the sum of all chemical reactions in an organism
• why are enzymes crucial for transforming substrates into products

  they control the reactions
• when you exercise your body undergoes changes to make sure enough oxygen is supplied to the cells
• what is the two types of respiration

  anaerobic and aerobic respiration
• what is the difference between anaerobic and aerobic respiration

  . Aerobic respiration - when oxygen releases more energy but more slowly. Anaerobic respiration - without oxygen and releases less energy but more quickly.
• what is the chemical equation for photosynthesis

  6CO2 + 6H2O → C6H12O6 + 6O2.
• what is the word equation for photosythisis

  carbon dioxide + water +(light energy) -> glucose and oxygen
• what is the equation for anaerobic respiration in muscles

  Glucose (makes) lactic acid
• what is the equation for anaerobic respiration in plants

  glucose (makes) Ethanol =carbon dioxide
• fermentation

  a type of anaerobic respiration in yeast
• fermentation is used for making 


  bread and wine
• how is fermentation used to make wine 


  the ethanol produced is used to create alcoholic drinks like wine
• how is fermentation used to create bread 


  The carbon dioxide released helps the bread rise
• what is a communicable diseases


  diseases that can spread between organisms
• how does bacteria make you ill

  it will release poisins called toxins