Chem 221 - Biochemistry for Science Majors » Fall 2021 » Working with Proteins
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Chem 221 - Biochemistry for Science Majors ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
What type of sample does scientist in the video start with?
A.
Cell pellet
B.
Crude extract
C.
Frozen heart
D.
Chicken breast
Question #2
What is the FIRST method used in the video to create the crude extract?
A.
Sonication
B.
Blender
C.
Homogenization
Question #3
What is the second method used in the video to create the crude extract?
A.
Homogenization
B.
Blender
C.
Sonication
Question #4
How does the scientist prevent denaturation during protein extraction?
A.
Boils the sample
B.
Mixes the sample multiple times
C.
Keeps sample on ice
D.
Works really fast
Question #5
What is the speed used to centrifuge the balanced tubes?
A.
Highest speed
B.
Lowest speed
C.
Medium speed
Question #6
What is the brand of the centrifuge rotor?
A.
Biorad
B.
Sorvall
C.
Smith
Question #7
Centrifugation time is
A.
60 minutes
B.
90 minutes
C.
40 minutes
D.
20 minutes
Question #8
After centrifugation, supernatant is filtered.
A.
TRUE
B.
FALSE
Question #9
Look up the meaning of FPLC (we did not discussed it in class). The most common FPLC is
A.
Ion exchange
B.
Affinity chromatography
Question #10
To load sample in the SDS PAGE apparatus
A.
A Mohr pipette is used
B.
A micropipette is used
Question #11
The color of the sample loaded in the SDS PAGE wells is
A.
Pink
B.
Green
C.
Blue
Question #12
Observe the gel. Do the bands show proteins with about the same weight or different weights?
A.
Same
B.
Different
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Chem 221 - Biochemistry for Science Majors ] course for $25 USD.
Existing Quiz Clients Login here