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WorksheetsPractical 1 Review
Total questions: 76
Worksheet time: 41mins
What does this experiment show?
(a)
Which leaf was kept in the dark?
(a)
Why did the leaves loose their green color?
(a)
What is this experiment called?
(a)
What is each section called? (in order from top to bottom)
(a)
What is this tool called?
Binocular Compound Light Microscope
Ocular Stereo Light Microscope
Binocular Simple Light Microscope
Binocular Confocal Light Microscope
What is this tool called?
Binocular Compound Light Microscope
Ocular Stereo Light Microscope
Binocular Simple Light Microscope
Binocular Confocal Light Microscope
What is A?
Legs
Base
Objective lenses
Arm
What is B?
Fine Adjustment
Iris Diaphragm
Light
Stage
What is C?
Ocular Lens
Iris Diaphragm
Stage Adjuster
Revolving Nose Piece
What is D?
Objective Lenses
Iris Diaphragm
Stage Clip
Stage
What is E?
Objective Lenses
Arm
Light Adjuster
Ocular Lens
What is F?
Objective Lenses
Arm
Light Adjuster
Ocular Lens
What is H?
Stage Clip
Base
Arm
Nose Piece
What is K?
Stage Clip
Stage Adjustment
Iris Diaphragm
Nose Piece
What is L?
Base
Coarse Adjustment
Stage Adjustment
Fine Adjustment
What is M?
Base
Coarse Adjustment
Stage Adjustment
Fine Adjustment
What happened in the Red Sudan Stain test?
The detergent emulsified the oil so that it can mix with the water
The water and oil continued to be separate
The red Sudan stained both liquids
Nothing happened
What caused the water and oil to mix and what does emulsified mean?
science; water and oil mixed together
detergent; mix of 2 liquids that are insoluble to each other
hydrogen bonds; the hydrogen bonds of water broke and bonded with oil
built different; some samples of oil and water mixed because they were contaminated
What temporarily made the oil and water mix?
scaring the liquids made them hug each other (mix)
being awesome caused the water and oil to mix
watching caused the water and oil to mix
shaking caused the water and oil to temporarily mix
How do we test for proteins?
Biuret reagent; look for blue-green change to violet
Methylene Blue; look for blue
Red Sudan; look for red
Benedict's Reagent; look for blue change to green to brown to red
How did we test for proteins?
Put substance in tube and burn to test for proteins
Put substance in tube and boil, then put solution to test for proteins and boil
Put substance in tube and put testing solution to test for proteins
put substance on brown paper and look for proteins
Which of these are proteins?
albumin
sucrose
milk
bread
ground peanuts
Which element is the backbone of all organic materials?
Oxygen
Carbon
Hydrogen
Nitrogen
How do we know if the substance is organic?
burning the substance results in a black residue
substance starts to melt
add a testing solution and see a color change
the solution becomes cloudy
Which of these are organic?
Sugar
Meat
Table Salt
Baking Soda
What reagent did we use for reducing sugars and from what color to what color do we need to look out for?
Benedict's reagent; blue to green, brown, and red
Biuret reagent; blue-green to violet
Iodine; blue-black to red
Methylene Blue; blue
What do we need to prepare for the reducing sugars test?
a water bath
a bunsen burner
a hot water bath
the microscope
Which of these have reducing sugar?
glucose
starch
apple juice
HCL + sucrose
molasses
What liquid did we use to test for starch and what color to what color do we need to look for?
Malachite green; green
Potassium permanganate; purple
Iodine; yellow to blue-black
Acetone-ether; colorless to green, yellow, orange, and red
Which of these are starch?
Glucose
Potato
Bread
Sucrose
Saliva
Why is sucrose and glucose not a starch"
starch is a polysaccharide and glucose and sucrose aren't polysaccharides
sucrose and glucose aren't sugar
sucrose and glucose aren't even real
starch is actually a different biomolecule
What does saliva do to starch and which enzyme does this?
I can't think of another crazy answer so please don't pick this
Glucose just felt like breaking up with each other
Amy lase was a sore loser and started wrecking the starch chains
Amylase breaks down starch into glucose
What changed before and after the Elodea slides?
the vacuole before took up much of the cell's space but adding salt water made the vacuole shrink but the cell wall stayed intact
nothing changed
the vacuole got up to get salt water (like my dad ಥ_ಥ) after being submerged with salt water
the salt water decided to become like the Romans and siege the cell until the cell accepted their harsh terms (water)
What stain did we use for the onion peel?
Methylene blue
None
Biuret reagent
Benedict reagent
What are the purple things in the potato cell and what caused them to be purple?
ube, a type of starch, has invaded the potato cells and thats why there's purple things
the amyloplasts were stained by iodine
amylase were stained by iodine
What is 1 and its function?
Rough ER; makes proteins
Smooth ER; makes lipids
Golgi bodies; transport and modifies macromolecules
Cell wall; provides structure
What is 1 and its function?
Cell membrane; controls passage of materials in and out of cell
Nucleus; contains the DNA
Cell wall; provides structure
Vacuole; stores water
What is 3 and its function?
Nucleolus; makes ribosomes
Nucleus; holds genetic info
Mitochondria; makes energy
Cell membrane; controls passage in and out of cell
What is 2 and its function?
Cell membrane; controls passage of materials in and out of cell
Nucleus; contains the DNA
Cell wall; provides structure
Vacuole; stores water
What is 4 and its function?
Nucleolus; makes ribosomes
Nucleus; holds genetic info
Mitochondria; makes energy
Cell membrane; controls passage in and out of cell
What is 3 and its function?
Nucleolus; makes ribosomes
Mitochondria; makes energy
Chloroplast; photosynthesis
Vacuole; stores water
What is 5 and its function?
Nucleolus; makes ribosomes
Nucleus; holds genetic info
Mitochondria; makes energy
Cell membrane; controls passage in and out of cell
What is 5 and its function?
Nucleolus; makes ribosomes
Mitochondria; makes energy
Chloroplast; photosynthesis
Vacuole; stores water
What is 7 and its function?
Rough ER; makes proteins
Chloroplast; photosynthesis
Mitochondria; makes energy
Smooth ER; makes lipids
What is 8 and its function?
Golgi bodies; transports and modifies macromolecules
Cell wall; provides structure
Cytoplasm; gel-like fluid inside the cell
Vacuole; stores water
What is 12 and its function?
Nucleus; holds genetic info
Ribosomes; makes proteins and is embedded onto Rough ER
Mitochondria; makes energy
Smooth ER; makes lipids
What are the properties of diffusion?
particles spreading from high concentration to low concentration until it's evenly distributed
doesn't require energy
requires energy
goes against the concentration gradient
requires proteins to move
Which of these are passive transport?
Osmosis
Facilitated Diffusion
Diffusion
Active transport
What is facilitated diffusion?
the particles use energy and fight to the death until one lone particle survives and gets to go to the other side
particles go through a sorting hat to be placed in different factions
facilities started to pop up in the membrane which allowed the particles to work; creating a balance between workers and non-workers
particles use proteins to go through the membrane
What is osmosis?
water molecules use the power of hydrogen bonds to break through the surface and invade the other side
water molecules become Spartans and fight to the death on who gets to pass through the semi-permeable surface
water molecules passing through semi-permeable surfaces from high concentration to low concentration
nature shuffling water molecules in and out of everything
How might dispersal (diffusion) be speeded up?
by adding energy, like stirring or heating up the solution. Also if the molecules are lighter, then it'll speed up
by removing energy, like cooling the solution. Also if the molecules are heavier, then it'll speed up
by yelling at it to speed up
time is a social construct built to constrict humans to a certain amount of hours which causes misery and pain for all of humanity. we need to get rid of time in order to achieve peace, wealth, and pleasure. our founding fathers would cry if they see the state we're in right now because of how much time constrains us.
What two substances did we use to see diffusion and which one diffused faster?
Malachite green and potassium permaganate; potassium permagante diffused faster
Malachite green and potassium permaganate; malachite green diffused faster
Iodine and methylene blue; iodine diffused faster
Iodine and methylene blue; methylene blue diffused faster
In the water and glucose experiment, how did the water go into the tube that's attached to the glucose water bag?
the water decided to migrate because it was so tired of being stuffed with other water molecules and glucose
Due to osmosis, the glucose water bag had more concentrate than water, so the water in the beaker goes into the bag. However, since the bag has no room for more water molecules, the extra water went into the tube
water decided to practice magic and poofed itself in the tube
Glucose invited way too many water molecules so the extras had to be locked in a different area.
In the starch-iodine diffusion experiment, which molecule was bigger?
Starch
Iodine
Could iodine get through the membrane and what color did the starch turn if iodine got through the membrane?
Yes, the starch turned blue-black
Yes, the starch turned red
No, the starch went into the iodine filled beaker and turned blue-black
No, the starch didn't get dyed from the iodine.
What causes the cell to crenate (shrink)?
Hypotonic solution
Hypertonic solution
Isotonic solution
What causes a cell to lyse (rupture)?
Isotonic solution
Hypertonic solution
Hypotonic solution
What is the solution called if it has the same percentage of water and solute as the cell?
Isotonic solution
Hypotonic solution
Hypertonic solution
When the sheep's blood went into a hypertonic solution, what did the liquid look like?
Almost see through
Cloudy
Red
When the sheep's blood went into a hypotonic solution, what did the liquid look like?
Cloudy
Almost see through
Red
Which tube with the Elodea leaf turn back to blue?
tube 1
tube 2
tube 3
tube 4
What liquid did we put in the tubes with Elodea leaves?
Iodine
Bromothymol blue
Biuret reagent
Methylene blue
What is bromothymol blue's function?
tests for potential proteins
stains a certain part
tests for pH.
tests for potential reducing sugars
When the bromothymol blue changes yellow, it is more ____ and when it turns blue, it is more ____.
acidic; basic
basic, acidic
acidic, neutral
neutral, basic
Which leaf contained more starch in the dark vs light leaf experiment?
Dark leaf
Light leaf
What did we do to the light and dark leaf?
Add iodine and look in the microscope
Boil until everything evaporates then add iodine
Prepare a warm water bath and add ethanol and iodine
Prepare a boiling water bath, remove the water from the beaker, then add ethanol to the beakers and boil again. Finally, add iodine
How did we prepare the chromatography experiment?
Grab chromatographic paper and add 6 chlorophyll extract. Then, go under the hood and put chromatography solvent. Put a stopper on the tube. Take out the paper and observe the colors.
Pour chlorophyll extract into the tube and add chromatography solvent. Put a stopper and then observe.
Pour chromatography solvent onto paper and add chlorophyll extract into the tube. Add a stopper and observe.
Which experiment needs to be under the hood?
The Elodea experiments
Chromatography experiment
Inorganic vs Organic experiment
Light vs Dark Leaf experiment
Which chlorophyll type was colored dark green or blue-green after the chromatography solvent was gone?
Amylose
Chlorophyll B
Cerotenoid
Chlorophyll A
Which chlorophyll is colored yellow-green after the chromatography solvent was gone?
Fructose
Cerotenoid
Chlorophyll B
Chlorophyll A
Which chlorophyll is colored orange or red after the chromatography solvent was gone?
Cerotenoid
Chlorophyll A
Carrotphyll
Chlorophyll B
Why are plants green?
Because of the wavelengths getting reflected off of a plant
Because of the photosynthesis getting done in the chlorophyll
Because chlorophyll is naturally green and there are so many cells in a plant that it makes it look green. Its the same reason why firetrucks appear as red
Because it wants to and you have no right to question a plant's identity
Which of the following are the correct proportions for the lamb blood lab?
0% solute=hypotonic
20% solute=isotonic
.85% solute=hypertonic
0% solute=hypertonic
20% solute=hypotonic
.85% solute=isotonic
0% solute=hypotonic
20% solute=hypertonic
.85% solute=isotonic
What did this experiment prove?
Malachite green is heavier than potassium pemagrate, therefore it will spread slower
Potassium pemagrate is heavier than Malachite green, therefore it will spread slower
Potassium pemagrate is heavier than Malachite green, therefore it will spread faster
Malachite green is heavier than potassium pemagrate, therefore it will spread faster
What affects diffusion?
Temperature
Weight
The amount of available energy
Concentration gradient
The thiccness of the cell membrane
