Cells Flashcards
Plant cells
Cellulose cell wall
Cell membrane
Permanent vacuole
Chloroplasts
Animal cells
Cell membrane
Cytoplasm
Nucleus
Mitochondria
Cell respiration
Respire aerobic ally and anaerobically
How substances move out of cells
Diffusion
Osmosis
Active transport
Diffusion
Movement of particles
High concentration area —> low concentration
Caused by the random movement of gases and liquids
Diffusion effected by
Concentration
Temperature
Surface area
Osmosis
Where water moves across a partially permeable membrane
High to low concentration
Across cell walls
Enzymes
Biological catalysts
Proteisn
What enzymes do
Speed up reactions without being used up
What affect enzymes
Temperature
Effects shape of the active site
Cellular respiration
Breaks down small food molecules
Aerobic respiration
Oxygen used to oxidise food
CO2 and H2O are leased as waste products
Respiration equation
Glucose + oxygen ——-> carbon dioxide + water
Respiration short equation
C6 H12 O6 + 6O2 ——> 6CO2 + 6H2 O
Anaerobic respiration
Glucose not completely broken down
Less energy released
