SB1 Key Concepts
- Created by: lx1234
- Created on: 29-04-18 13:37
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- SB1
- Cells
- Plant
- Ribosomes,
- Chloroplasts
- Mitochondria
- Vacuole
- Nucleus
- Cell Membrane
- Cytoplasm
- Animal
- Nucleus
- Cytoplasm
- Mitochondria
- Cell Membrane
- Ribosomes
- Specialised
- Egg
- Red Blood
- Sperm
- Ciliated Epithelial Cell
- Bacterial
- Cell Wall
- Cell Membrane
- Plasmid DNA
- Flagellum*
- Ribosomes
- Plant
- Microscopy
- Light Microscopes
- Uses light to magnify objects.
- x2000
- Uses light to magnify objects.
- Electron Microscopes
- Electrons to view objects
- x10 million
- clearer
- x10 million
- Electrons to view objects
- Mag=Image Size/Real Size
- Light Microscopes
- Enzymes
- Activity
- Low temp/pH=slow activity.
- High temp/pH=denatured.
- optimum pH/temp = enzyme works best
- Not at optimum active site changes, enzyme wont fit
- Digestion
- Amylase
- Digestion of Carbs into Sugars.
- Lipase
- Digestion of Lipids into Fatty Acids
- Protease
- Digestion of proteins into amino acids
- Amylase
- Activity
- Food Tests
- Iodine Test
- Starch
- Mix with solution of food
- Neg: Orange, Pos: Black
- Benedicts Solution Test
- Add equal volume of Benedicts solution to food and mix
- Heat in 95 water bath for few mins
- Sugar
- Heat in 95 water bath for few mins
- Add equal volume of Benedicts solution to food and mix
- Biuret Test
- Proteins
- Add equal vol of 0.1 mol dm-3 potassium hydroxide solution to food solution
- Neg: Pale Blue, Pos: Pale Purple
- Add few drops 0.01 mol dm-3 copper sulfate solution and mix
- Iodine Test
- Ethanol Test
- Fats
- Add equal vol of ethanol to food solution, shake
- Add water to mixture
- Cells
- Cell Wall
- Plant
- Ribosomes,
- Chloroplasts
- Mitochondria
- Vacuole
- Nucleus
- Cell Membrane
- Cytoplasm
- Plant
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