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Quiz I - Cell Biology (A.Traweger) Flashcards | StudBud
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Quiz I - Cell Biology (A.Traweger)
Quiz I - Cell Biology (A.Traweger)
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1
Which of the following best describes an example of an epitope?
A common bacterial motif recognized by receptors.
That part of a molecule that binds to the F'ab part of Ab
The part of a molecule that binds to the Fc part of Ab
A molecule that mediates protein degradation
2
Why was progress so slow for 300 years in the field of cell biology?
cell structure was too small to be studied
People at that time were not interested in biology
everyone was afraid of bacteria
there were no biology courses offered in schools
3
Until the 19th century, the predominant theory how organisms form was called?
"Generatio Spontanaea""
"Sponte Viventium"
"Fragor Magnus"
"Omnia ex Ovo"
4
What is cellular homeostasis?
Converts nutrients into metabolites.
Constant exchange between cells.
Maintains extracellular pH levels.
Constant set of intracellular conditions.
5
How are monoclonal antibodies made?
Antibodies are engineered.
ALways produced in animals.
B-cells and tumour cells are fused for Ab production.
Cloned rabbits are used for immunization.
6
Antigens can be....
DNA
Proteins
Lipids
All answers are correct.
7
The genome size is measured in.....
....number of nucleotide pairs per haploid genome.
.....number nucleotides per diploid genome.
...number of amino acids in the proteome.
...number of genes per haploid genome.
8
Why is metabolism essential to all living organisms?
all answers
De-toxifies cells
It provides building blocks for biosynthesis
It replaces cells
9
Polyclonal antibodies SHOULD bind:
Multiple epitopes and multiple antigens
One epitope, but many antigens
Multiple epitopes but one antigen
Any epitope
10
Which of the following microscopes has the highest resolution?
Phase contrast microscope
Laser scanning confocal microscope
Scanning electron microscope
Fluorescence microscope
11
The fragment crystallizable (FC) region of an antibody is responsible for binding specifically to a target protein.
True
False
12
Virchow contributed to which tenet of the cell theory?
Cells come from only the reproduction of existing cells
All existing cells are produced spontaneously
All living organisms are composed of one or more cells
Cells are the basic units of structure in an organism
13
Can you visualize the cell nucleus using phase contrast microscopy?
False
True
14
What is the main difference between scanning electron microscopy (SEM) and transmission electron microscopy (TEM)?
SEM provides information on surface, while TEM examines the inner structure
SEM uses transmitted electrons, while TEM uses reflected electrons.
SEM has higher magnification than TEM.
SEM uses light microscopy, while TEM uses electron microscopy.
15
Cell Biology: What is this structure that is part of a cell?
Cell Membrane
Cell wall
rough endoplasmic reticulum
Ribosome
16
Who coined the term "cell" that is still used in biology?
Newton
Galileo
Marx
Hooke
17
What is the importance of genetics in cell biology?
to study fermentation and distillation
to study information flow and heredity
to study cellular structure and function
to study plant and animal cells
