Transcript Lab Practical

Lab Practical
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Lab Safety
Scientific Method
Graphs (Dry Mix)
pH Lab
Carbohydrate Lab
Microscope Lab
Lab supplies
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Cell Lab
Baggie lab
Egg lab
DNA Cut-out Lab
Zweeble Lab
Onion Root Tip Lab
Scientific Method
• What might be a
good hypothesis?
• What is the
dependent
variable?
• What is the
independent
variable?
• DRY MIX
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pH Lab
Purpose: Measure the pH of
common
substances.
• What is the pH of milk?
• Is lemon juice acidic or
basic?
• Is ammonia acidic or basic?
• Acidic vs Basic
Carbohydrate Lab
Purpose: Determine whether common foods
contain mono-, di-, or polysaccharides.
• What color does the substance change when
iodine is added to starch?
Carbohydrate Lab
Iodine: Change from _________ to _________
Type of Carbohydrates?
Carbohydrate Lab
Benedict’s: Change from _________ to
_________
Type of Carbohydrate?
Carbohydrate Lab
How does one test for disaccharides?
Microscope Lab
Purpose: Get familiar with microscope use
and handling.
• Objective Lenses
• Adjustment knobs
• Functions of structures
Cells Lab
Purpose: Identify the
parts of a cell using a
microscope.
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What type of cell?
What type of cell?
Structure?
Structure?
Baggie Lab
Purpose: Demonstrate
how a semi-permeable
membrane operates.
• What material is inside
the bag?
• Outside the bag?
• What happens to the
bag?
• Is the bag permeable to
starch?
Egg Lab
Purpose: Observe how cells react to different
environmental conditions using osmosis.
• Type of solution: Hypertonic, Hypotonic,
Isotonic
• Direction of water movement
DNA Cutout Lab
Protein Synthesis/Zweeble Labs
• Transcribe DNA into
mRNA
• Use mRNA codon
chart to identify amino
acids
Onion Root Tip Lab
Purpose: Identify cells in various stages of
the cell cycle.
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What is phase A?
B?
C?
Put the pictures in order!
B
C