Font size
WorksheetsLab Practical 1 REVIEW
Total questions: 99
Worksheet time: 1hrs 4mins
What type of microscope is shown in the image?
dissecting
electron
darkfield
compound light
What is arrow A pointing to?
Nosepiece
Ocular Lense
Objective Lens
Stage
Stage Clip
What is arrow B pointing to?
Nosepiece
Ocular Lense
Objective Lens
Stage
Stage Clip
What is arrow C pointing to?
Nosepiece
Ocular Lense
Objective Lens
Stage
Stage Clip
What would be the TOTAL magnification of an object as viewed using this microscope (lenses as shown)?
4x
40x
400x
4,000x
Which of the following terms describes how well details of a specimen on a microscope slide stand out against their background?
depth of field
field of view
contrast
resolution
Which objective lens should be in place when first focusing a microscope?
scanning lense
ocular lens
low power lens
high power lens
Which adjustment knob should NOT be used when the high power lens is in place?
coarse adjustment knob
fine adjustment knob
iris diaphragm
Which of the following statements would properly define parfocal?
The ability to focus any object placed on the stage.
An object is nearly centered at all levels of magnification.
If an object is in focus at one magnification, it will still be focused at another magnification.
The amount of detail found in an image.
Which of the following statements would properly define parcentral?
The ability to focus any object placed on the stage.
An object is nearly centered at all levels of magnification.
If an object is in focus at one magnification, it will still be focused at another magnification.
The amount of detail found in an image.
When a microscope has good resolution, it is said to allow for
more detail to be seen in an image.
more contrast to be seen about an image.
increased magnification than normal.
All of these.
Which of the following is an example of qualitative data?
The plant's height is 25 centimeters (cm).
The six pairs of robins hatched an average of three chicks.
The fish swam in a zig-zag motion.
The temperature decreased from 20°C to 15°C.
Water boils at
212℉
100℃
212℃
100℉
You are looking at a centimeter (metric) ruler. Determine the length of the card in millimeters.
4.4 mm
42 mm
4.2 mm
44 mm
You check your temperature (normal human body temperature is 37℃). The thermometer that you use gives you the following results:
Check #1 → 25℃ Check #2 → 25℃ Check #3 → 25℃
The thermometer is
accurate, but not precise
precise and accurate
precise, but not accurate
neither precise nor accurate
Which of the following structures would NOT be found in or around an animal cell?
chloroplast
ribosome
plasma membrane
nucleus
Does a Paramecium cell have a nucleus?
yes
no
Does a Anabaena cell have a nucleus?
yes
no
Which TWO describe the cells shown?
eukaryotic
prokaryotic
Kingom Plantae
Kingdom Animalia
Which of the following is true regarding Euglena?
it's prokaryotic because it's green
it's prokaryotic because it contains a nucleus
it's eukaryotic because it doesn't have a cell wall
it's eukaryotic because it contains a nucleus
These anabaena cells belong to which domain?
Protist
Prokaryotes
Bacteria
Eukarya
Look at the exhibited measuring devices. If you needed to measure 3.8mL of water, which one of these measuring devices would give the most accurate volume?
How many hectometers are in 94.2 meters?
9420 hm
0.942 hm
942 hm
0.094 hm
How do you convert 486 grams into milligrams?
4.86 x 105 mg
4.86 x 103 mg
4.86 x 107 mg
4.86 x 10-6 mg
How many centimeters are in 10 inches?
(1 inch = 2.54 cm)
3.94 cm
25.4 cm
39.4 cm
254 cm
How many milliliters of fluid are in the graduated cylinder?
56 mls
53 mls
58 mls
54 mls
Which of these would be the most appropriate positive (+) control for the Biuret test?
distilled water
glucose
starch
albumin
Which of these would be the most appropriate negative (-) control for all of the tests performed in the lab for the identification of the biological (macro)molecules?
distilled water
glucose
starch
albumin
What is the unknown?
simple sugar
starch
lipid
protein
What is the unknown?
simple sugar
starch
lipid
protein
Pretend that you are testing lunch samples from ACME Restaurant. The food is horrible and usually unidentifiable. You have been hired to determine the identity of some of the food in the freezer. The owner claims that one thing you find in his freezer is ground beef, but you are worried that he is wrong After the testing is complete, you obtain the following results:
Benedict solution → tube of unknown is BLUE
Biuret solution → tube of unknown is VIOLET
Iodine solution → tube of unknown is BROWN
What can you firmly say about the unknown food sample you tested?
It contains protein, starch, and simple sugars since all tests gave positive results.
It contains protein, but no glucose or starch.
It does not contain protein; but does contain glucose and starches
The results are inconclusive.
The Benedict's test specifically detects the presence of:
Proteins
Lipids
Starch
Reducing sugars
Name the food test and the type of food that was being tested.
Benedict's test
Glucose
Millon's test
Protein
Iodine test
This solution is change into dark blue when mixes up with the food. Name the solution and the food.
Starch
Iodine
Protein
Millon's reagent
Benedict
Identify a mistake of this test.
The test tube is not soaked in water bath
Blue flame is used
Only a few drops of Benedict's reagent is used
Which of the following tests for starch?
Iodine
Benedict's
Biuret
Emulsion
Which of the following tests for protein?
Iodine
Benedicts
Biuret
Emulsion
Which of the following tests for glucose?
Iodine
Benedicts
Biuret
Emulsion
When starch is present iodine turns...
purple
blue-black
orange
brick red
When protein is present Biuret turns...
purple
blue-black
orange
brick red
When large amounts of glucose is present Benedicts turns...
purple
blue-black
brick-red
green
A negative test for starch will cause Iodine to stay...
orange/red
blue
black
brick red
A negative test for protein will cause Biuret to stay...
brick red
blue
black
orange
A negative test for glucose will cause Benedicts to stay...
brick red
blue
black
orange
How do you test for lipids?
By using Ethanol and water
By using Benedicts solution
By using Iodine
By using Biuret test
What is a positive result for the lipid emulsion test?
milky white colour
clear
yellow
green
In this experiment, you must put your test tubes into a hot water bath
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
The building blocks of proteins are
carbohydrates
amino acids
sugars
fatty acids
The building blocks of starch are
glycerol
amino acids
sugars
fatty acids
What is the test for starch called?
Iodine Test
Benedict's Test
Tara conducted several tests on a mystery solution. Her results were as follows:
Biuret's = purplish/violet
Benedict's = orange
Iodine = black
Which biomolecules were present in the mystery solution?
A "simple sugar" is another word for a
polysaccharide
monosaccharide
disaccharide
carbohydrate
Large molecules can sometimes be composed of many smaller subunits. The smaller subunits are called
polymers
monomers
isomers
enantiomers
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
If he begins his analysis by using an iodine test, what would be the most appropriate positive control?
distilled water
glucose
starch
albumin
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
If he begins his analysis by using an iodine test, what would be the most appropriate negative control?
distilled water
glucose
starch
albumin
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
If he begins his analysis by using an iodine test, what color would we expect the positive control to be?
light blue
violet
black
orange
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
If the positive control for the iodine test remains amber/orange, can he be confident that his results are accurate?
yes
no
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
After testing each sample, he recorded his data. What is unknown 1?
broccoli cheddar soup
bone broth
potato soup
tomato soup
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
After testing each sample, he recorded his data. What is unknown 2?
broccoli cheddar soup
bone broth
potato soup
tomato soup
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
After testing each sample, he recorded his data. What is unknown 3?
broccoli cheddar soup
bone broth
potato soup
tomato soup
A food inspector for the FDA is interested in testing an unknown sample for the presence of specific biological molecules. In addition to the food sample, he also has bottles of the following: distilled water, glucose solution, starch solution, and albumin solution.
After testing each sample, he recorded his data. What is unknown 4?
broccoli cheddar soup
bone broth
potato soup
tomato soup
Which letter represents the percent change in mass after 4 minutes in water?
A
B
C
D
Which letter represents the percent change in mass of -1.4% at one minute?
A
B
C
D
E
Bonnie and Clyde were finished with their latest bank robbery and decided to perform a small science experiment. They first incubated potato strips in two solutions to study passive transport, much like you did in your lab exercise. Part of their data is shown in the table.
What is the mass change for strip #1?
0.12g
1.76g
-0.12g
-0.35g
-1.20g
Bonnie and Clyde were finished with their latest bank robbery and decided to perform a small science experiment. They first incubated potato strips in two solutions to study passive transport, much like you did in your lab exercise. Part of their data is shown in the table.
What is the percent change in mass for strip #1?
22.6%
-35%
7.3%
12%
-22.6%
Bonnie and Clyde were finished with their latest bank robbery and decided to perform a small science experiment. They first incubated potato strips in two solutions to study passive transport, much like you did in your lab exercise. Part of their data is shown in the table.
What is the percent change in mass for strip #2?
22.6%
-35%
7.3%
12%
-22.6%
Bonnie and Clyde were finished with their latest bank robbery and decided to perform a small science experiment. They first incubated potato strips in two solutions to study passive transport, much like you did in your lab exercise. Part of their data is shown in the table.
What is the mass change for strip #2?
0.12g
-0.12g
-0.35g
0.35g
-1.20g
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Based on the graph, what is the tonicity of solution A?
Isotonic
Hypertonic
Hypotonic
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Based on the graph, what is the tonicity of solution B?
Isotonic
Hypertonic
Hypotonic
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Based on the graph, what is the tonicity of solution C?
Isotonic
Hypertonic
Hypotonic
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Based on the graph, what is the tonicity of solution D?
Isotonic
Hypertonic
Hypotonic
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Which of the following solutions would cause plasmolysis of the cells in the potato strips?
Solution A
Solution B
Solution C
Solution D
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Based on the graph, what is the tonicity of solution E?
Isotonic
Hypertonic
Hypotonic
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Which of the following solutions would have the highest turgor pressure?
Solution A
Solution C
Solution E
Bonnie and Clyde next tested five different salt solutions to see how concentration differences influence the rate of transport across cell membranes. They placed potato strips in each of the solutions and determine the mass of each strip at 10-minute intervals. Using that data, they graphed the percent mass change versus time, as shown below, for each strip.
Which of the following solutions would have the highest turgor pressure?
Solution A
Solution C
Solution E
Which solution caused the fastest rate of water moving out of potato cells?
Solution A
Solution B
Solution C
Solution D
Solution E
Which solution caused the fastest rate of water moving into the potato cells?
Solution A
Solution B
Solution C
Solution D
Solution E
Which solution has water moving in and out of the potato cell at equal rates?
Solution A
Solution B
Solution C
Solution D
Solution E
What organelles are visible in these cells?
nucleus and chloroplasts
nucleus and cell membrane
cell wall and nucleus
cell wall and chloroplasts
What piece is the smaller knob, found near the course adjustment knob, and is used to focus the image under low and high power?
Aperture
Fine Adjustment Knob
Diaphragm
Course Adjustment Know
Why is it important to not let the nosepiece lenses touch the slide/stage?
It will be inverted
It will blur your image.
It can be hard to see the slide.
It could break the glass slide.
What type of cells are these?
Plant cells
(onion root tip)
Animal Cells
(cheek cells)
Bacterial Cells
(staph)
Protist Cells
(amoeba)
Which pH produces the best rate of O2 production?
pH 5
pH 7
pH 9
pH 11
What is the rate of O2 production at pH 5?
0 ppt O2/s
0.02 ppt O2/s
0.20 ppt O2/s
0.39 ppt O2/s
What is the Independent Variable?
Rate of 02 production (ppt O2/s)
pH
ppt O2/s
Rate of 02 production VS pH
What is the Dependent Variable?
Rate of 02 production (ppt O2/s)
pH
ppt O2/s
Rate of 02 production VS pH
When you look down a microscope, the circle that you see is called '______'
stage
stage clips
field of view
occular lens
Fungi, Protists, Plants and Animals all ____________?
have a nucleus
have membrane organelles
are classified as prokaryotes
are classified as eukaryotes
Bacteria are prokaryotes, meaning they ________.
lack a nucleus
are very large
contain no DNA
have a cytoplasm
What color change occurs in a Benedict's test?
blue --> burnt orange
blue --> blue
clear --> white
yellow --> violet
What color change occurs in an Emulsion test?
blue --> burnt orange
blue --> blue
clear --> white
yellow --> violet
What color change occurs in an Iodine test?
blue --> burnt orange
blue --> blue
clear --> white
yellow --> violet
Which macromolecule does a Benedicts solution detect?
simple sugars
complex sugars
lipids
proteins
If you have walked 2,100 mm, how many meters have you walked?
.21
2.1
21
210
If you are drinking a lot of coke. 3 liters of it on one night. How many milliliters is that?
30
300
3000
30000
