B4 - The process of life 0.0 / 5 ? BiologyThe process of lifeGCSEOCR Created by: Lettyscarbaxter-daviesCreated on: 04-05-14 16:41 what is the function of a nucleus? Contains DNA. The DNA is instructions for making protein. 1 of 20 What is the function of the Cytoplasm? A Gel-Like substance where protein like enzymes are made made. 2 of 20 What is the function of the cell membrane? holds the cell together and controls what goes in and out like gasses and water. 3 of 20 What is the function of the Mitochondria? These are where the enzymes needed for the reaction of aerobic respiration. 4 of 20 Name 3 things that plant cells have but animals don't. 1) Cell wall. 2)Vacuole. 3) Chloroplasts. 5 of 20 Yeats cells have Mitochondria and a nucleus. True or False? True. They are like plant cells they just don't have a Vacuole or Chloroplasts. 6 of 20 What type of cells have a cell wall but not a nucleus? Bacteria 7 of 20 What is an enzyme? they are protein produced by living things. 8 of 20 What is the 'Lock and key' model? When a substrate fits specificity into a enzyme to make a reaction. Enzymes are very specific. 9 of 20 Name 2 things that affect how quickly an enzyme works. 1) Temperature. 2) The pH 10 of 20 What is a denatured enzyme? an enzyme that the shape has changed because of the temperature of pH. 11 of 20 What is the word equation for aerobic respiration? Glucose + Oxygen ---> Carbon Dioxide + Water (+Energy Released) 12 of 20 What is the symbol equation for aerobic respiration? C H O + 6O ---> 6CO + 6H O (+ Energy Released) 13 of 20 Give an example of when Human cells respire anaerobically. When you do vigorous exercise your body can't supply enough oxygen to your muscles cells for aerobic respiration. 14 of 20 What is Photosynthesis? It is a series of chemical reaction that uses energy from sunlight to produce food. 15 of 20 What is the word equation for photosynthesis? Carbon Dioxide + Water -->Light energy--> Glucose + Oxygen. 16 of 20 What is the symbol equation for photosynthesis? 6CO + 6H O -->Light energy--> C H O +6O 17 of 20 Give 3 ways plants use Glucose? 1) Respiration 2) Used to make Chemicals for growth. 3) Stored as Starch 18 of 20 What is diffusion? Is the passive overall movement of particles for a region of their higher concentration to a region of their lower concentration. 19 of 20 What is osmosis? Is the movement of water from the dilute to a more concentrated solution through a partially permeable membrane. 20 of 20
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