Biology 1100 - Principles of Biology » Fall 2019 » Prelab Quizzes
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Question #1
On the microscopes in lab, the light intensity is controlled by _____.
A.
the stage controls
B.
a dial on the base
C.
the objective
D.
a dial inside the focus knob
Question #2
Someone in the last class turned the objective lenses by grabbing them and left greasy fingerprints all over the lens. In order to clean it off, you should use _____.
A.
a tissue
B.
the corner of your t-shirt
C.
a paper towel
D.
lens paper
Question #3
You should use the ______ objective to locate specimens on your slide.
A.
100X
B.
10X
C.
4X
D.
40X
Question #4
When using the microscope with a 10X objective lens in place, the total magnification is ______.
A.
20X
B.
0.1X
C.
100X
D.
10X
Question #5
The 4X objective is also referred to as the _____ objective.
A.
high power
B.
low power
C.
scanning
D.
oil immersion
Question #6
Plasmolysis is the process of water flowing _______.
A.
out of cells in a hypertonic solution
B.
into cells in a hypotonic solution
C.
in and out of cells at an equal rate in an isotonic solution
D.
out of cells in a hypotonic solution
Question #7
Because the plasma membrane is selectively permeable, ________.
A.
movement of material across the membrane requires energy from the cell.
B.
materials can move freely across the membrane.
C.
the membrane allows water to pass freely but regulates movement of most other solutes.
D.
movement of material across the membrane does not require energy from the cell.
Question #8
You start an experiment by placing a plant cell in a hypotonic solution. What will happen to the cell?
A.
Water will flow out of the cell, causing it to shrivel up.
B.
No net movement of molecules will occur.
C.
Water will flow into the cell, causing it to swell.
D.
The cell will burst
Question #9
You will use ______ to detect the presence of glucose in the upcoming lab.
A.
sense of taste
B.
test strips
C.
sense of smell
D.
Benedict's reagent
Question #10
The ______ test is used to detect the presence of starch. In the presence of starch, the solution turns ______.
A.
test strips; green
B.
test strips; orange
C.
Iodine; blue/black
D.
Iodine; yellow-amber
Question #11
This week's experiment investigates _______ as the independent variable.
A.
yeast concentration
B.
glucose concentration
C.
temperature
D.
CO2 evolved
Question #12
In this experiment, you will construct a(n) _______ to collect data.
A.
incubator
B.
fermenter
C.
distiller
D.
respirometer
Question #13
Fermentation can occur in the absence of oxygen.
A.
FALSE
B.
TRUE
Question #14
What causes bread dough to rise?
A.
glucose
B.
ethanol
C.
water
D.
carbon dioxide
Question #15
Unlike cellular respiration, alcohol fermentation in yeast ______.
A.
Forms less ATP
B.
Produces ethanol
C.
All of these
D.
Occurs only under limited to no oxygen
Question #16
In this lab you will be using Synechococcus elongatus, a type of _____.
A.
cyanobacterium
B.
plant
C.
Archaea
D.
protist
Question #17
In the strains you will be working with, a gene has been _____.
A.
altered by one base pair
B.
added
C.
deleted
D.
altered by one domain
Question #18
All of the experimental strains you will be using have been given genes for ______.
A.
green fluorescent protein
B.
ampicillin resistance
C.
kanamycin resistance
D.
high salt tolerance
Question #19
You will use a ______ strain as a control for your experiment.
A.
special deletion
B.
wild-type (WT)
C.
radioactive mutant
D.
deletion mutant
Question #20
To set up cultures for your experiment, you will need to find the ____ of your starting cultures.
A.
color
B.
optical density (OD)
C.
temperature
D.
thickness
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