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WorksheetsBiology Experiments
Total questions: 50
Worksheet time: 25mins
Benedict's solution is used to test for
Reducing Sugar
Starch
Fat
Protein
Biuret reagent is used to test for
Protein
Reducing sugar
Starch
Fat
In testing for fat, a ______________ stain indicates a positive result
Translucent
Transparent
In the test for reducing sugar, which of the following is correct?
No heat needed
Heat but do not boil
Boil
If eyepiece lens is x10 and objective lens is x40. What is the total magnification
x50
x400
x4
x40
In preparing a slide for examination under the microscope, how did you lower the coverslip?
45 degree angle
90 degree angle
No angle
30 degree angle
Methylene Blue is used to stain cheek cells
True
False
In extracting DNA from plant tissue, washing up liquid was used to _____________
Break cell walls
Break down cell membranes
Clump DNA together
Stop DNA from breaking down
In extracting DNA from plant tissue, salt was used to _____________
Break cell walls
Break down cell membranes
Clump DNA together
Stop DNA from breaking down
In extracting DNA from plant tissue, ice bath was used to _____________
Break cell walls
Break down cell membranes
Clump DNA together
Stop DNA from breaking down
Ice (freezer) cold ethanol was used because DNA is __________ in ice cold ethanol
Soluble
Insoluble
In investigating the effect of pH on the rate of enzyme action, the enzyme used was _________________
Catalase
Amylase
Hydrogen Peroxide
Celery
In investigating the effect of pH on the rate of enzyme action, the enzyme was extracted from ___________
Catalase
Onion
Hydrogen Peroxide
Celery
The rate of enzyme action was measured by___________
Counting the number of bubbles per min
Measuring the volume of foam
Measuring the volume of foam produced per min
Finding the mass
When using yeast to prepare alcohol, what other product was produced?
CO2
H20
O2
Lactic acid
Name the plant used in investigating the effect of light intensity on the rate of photosynthesis
Elodea
Onion
Celery
Geranium
The rate of photosynthesis was measured by___________
Counting the number of bubbles per min
Measuring the volume of foam
Measuring the volume of foam produced per min
Counting the bubbles
When demonstrating osmosis, what led you to conclude that osmosis had occurred?
Tube got heavier
Tube stayed the same
Tube got lighter
Parafilm tubing is used to demonstrate osmosis
True
False
In the investigation on the effect of exercise on pulse rate, what was the control?
Pulse rate at rest
Water
Pulse rate standing
Pulse rate when exercising
When immobilising an enzyme, the gel substance used to trap the enzyme is called ________
Sodium Alginate
Calcium Chloride
Hydrogen Peroxide
Hydrochloric Acid
When immobilising an enzyme, the second substance used to make the gel insoluble is called ________
Sodium Alginate
Calcium Chloride
Hydrogen Peroxide
Hydrochloric Acid
How did you know that digestive activity of seeds had occurred on one of your investigation plates?
Plate stained blue-black
Plate stayed the colour of Iodine
Area under/around the seeds stayed the colour of Iodine, the rest of the plate turned blue-black
Area under/around the seeds turned blue-black, the rest of the plate stayed the colour of Iodine
How did you know that digestive activity of seeds had NOT occurred on one of your investigation plates?
Plate stained blue-black
Plate stayed the colour of Iodine
Area under/around the seeds stayed the colour of Iodine, the rest of the plate turned blue-black
Area under/around the seeds turned blue-black, the rest of the plate stayed the colour of Iodine
In science experiments, how can temperature be kept constant?
Water bath
Hot Plate
Bunsen Burner
Room temperature
In science experiments, what is used to keep the pH constant?
Buffer Solution
pH meter
Universal Indicator
Litmus paper
Plant enzymes work best at
25 degrees Celcius
37 degrees Celcius
10 degrees Celcius
60 degrees Celcius
Select the 3 factors needed for germination
Water
Light
Oxygen
Suitable Temperature
Food
How did you transfer cheek cells to a slide for examination under the microscope?
Cotton Swab
Forceps
Spatula
Inoculating Loop
In the investigation on the effect of heat denaturation on the rate of enzyme activity, how did you denature the enzyme?
Heat the enzyme
Boil the enzyme
In the investigation on the effect of IAA on plant tissue, what plant tissue did you use?
Radish seeds
Onion
Celery
In the investigation on the effect of IAA on plant tissue, what did you use as a control?
Water
Concentrated IAA
Diluted IAA
No seeds
In the investigation on the effect of IAA on plant tissue, at high concentrations the ________________
Shoot elongates
Root elongates
In the investigation on the effect of IAA on plant tissue, at low concentrations the ________________
Shoot elongates
Root elongates
Opening lids of petri dishs for the least amount of time possible is an example of
Sterilisation
Asespis
Washing the bench before and after each experiment is an example of
Sterilisation
Asepsis
Placing equipment in a pressure cooker or oven at 160 degrees Celsius for 1 hour is an example of
Sterilisation
Asepsis
In carrying out the heart dissection, how did you expose a semi-lunar valve?
Cut open Aorta
Cut open Pulmonary Vein
Cut open Left Ventricle
Cut open Right Atrium
In ecological studies, how would you identify plants or animals?
Poster
Identification Key
Internet
Guess
This piece of ecological equipment is used to
Catch butterflies
Collect insects in long grass
Catch bees
Catch fish
Which image would you expect to see when viewing a dicot stem under the microscope?
Image on the left
Image on the right
To carry out a quantitative survey of animals you would use a ________________
Mammal Trap
Quadrat
Line Transect
Belt Transect
When using a quadrat, if you record if a species is present or absent, that is measuring _______________
Percentage Cover
Percentage Frequency
When using a quadrat, if you record the number of times each plant species touches a point of intersection, that is measuring _______________
Percentage Cover
Percentage Frequency
When measuring the abiotic factor light intensity you would use a
light meter
thermometer
hygrometer
anemometer
When measuring the abiotic factor humidity you would use a
light meter
thermometer
hygrometer
anemometer
When measuring the abiotic factor wind speed you would use a
light meter
thermometer
hygrometer
anemometer
In investigating the effect of pH on the rate of enzyme action, the substrate used was _________________
Catalase
Amylase
Hydrogen Peroxide
Oxygen
In investigating the effect of temperature on the rate of enzyme action, the product was _________________
Catalase
Amylase
Hydrogen Peroxide
Oxygen
Potassium Iodide and Sodium Hypochlorite are used to test for ______________
Alcohol
Enzyme Immobilisation
DNA Extraction
Protein
