Trends in Biotechnology – Practice questions for Classroom Test. 1
Trends in Biotechnology - Classroom Test.
The following questions are True (O) or False (X)
1. Electrons have a shorter wavelength than visible light and therefore will have a lower
resolving power.
2. Multicellular organisms are composed of many cells.
3. The cell theory states that all living things are made of atoms.
4. The polar portion of the phospholipid molecule (head) is soluble in water, whereas the
two hydrocarbon chains (tails) are not.
5. Biotechnology is multidisciplinary.
6. Penicillin is the only antibiotic from other organisms.
Chose the best answer (s). Some questions will have more than one correct answer.
7. Fermentation:
A. Is a microbial process which
enzymatically changes organic
compounds.
B. produces foods such as bread,
wine, and beer.
C. was used for thousands of years
because people knew about
microorganisms.
D. Was used to grow bigger corn.
8. The fundamental unit of life is the
E. organism
F.
G.
H.
I.
organ system
organ
tissue
cell
9. ______ is the ability to distinguish
between two adjacent points.
A. Magnification
B. Resolving power
C. Ionization
D. Emulsification
E. Multiplication
10. The ______ membrane separates
the contents of the cell from the
surrounding environment.
A. plasma
B. nuclear
C. Golgi
D. mitochondrial
E. lysosomal
11. A threadlike material called
chromatin is located within the
______.
A. nucleus
B. nucleolus
C. mitochondria
D. lysosome
E. Golgi apparatus
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Trends in Biotechnology – Practice questions for Classroom Test. 1
12. ______ are lipids containing
phosphorus that are very important
in cell membranes.
1. Glycerol
2. Fatty acids
3. Triglycerides
4. Steroids
5. Phospholipids
13. __________ is the commercial use
of living organisms or their
components to improve animal and
human health, agriculture, and the
environment.
A. Bioconversion
B. Biotechnology
C. DNA fingerprinting
D. Bioremediation
14. The renowned French Chemist
__________ eventually established
that yeast and other microbes are
directly linked to fermentation.
A. Louis Pasteur
B. Anton van Leeuwenhoek
C. Shen Nan
D. CGIAR
15. __________ is added to fruit juice to
improve taste.
A. Lysine
B. Methionine
C. Cysteine
D. Alanine
16. __________ is used in Japan to
make bread a more complete
protein.
A. Cysteine
B. Alanine
C. Lysine
D. Methionine
17. Fermentation has been modified to
make:
A. glycerol for explosives
B. aseptic techniques
C. antibiotics
D. butanol
18. Development of staining techniques:
A. Made it easier to see cell parts with
a microscope
B. Made the cells pretty colors
C. Showed that living things come
from other living things
D. Showed that cells come from cells
19. Which of these are fluorochromes?
A. GFP
B. Primary antibodies
C. Phalloidin
D. Fluorescent protein
20. Which has most magnification?
A. Scanning electron microscope
B. Transmission electron microscope
C. Fluorescent microscope
D. Light microscope
21. Indirect immuno-cytochemistry is
very sensitive because:
A. The primary antibody is recognized
by many molecules of the
secondary antibody
B. A flurorophore can be directly
conjugated to the primary antibody
C. This techniques uses highly
specific binding of an antibody to
its antigen
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Trends in Biotechnology – Practice questions for Classroom Test. 1
D. Fluorescent stains are drugs or
D. By measuring the strength and
toxins which bind to specific
cellular structures and have been
made with a fluorescent reporter
position of the diffraction pattern
we can work back to the structure
of the molecule
22. STED-microscopy uses
A. The
fluorescence
of
single
molecules being turned on and off
B. Electrons which have a much
shorter wavelength than light
C. Many images of the same area
25. It is important to find the structure
of bacterial ribosomes because we
can:
A. Find antibiotics which block the
tunnel through which proteins
leave the ribosome
D. Two laser beams, one to stimulate
the fluorescent molecules and the
other to cancel out fluorecence
B. Find antibiotics which stop the
formation
of
peptide
bonds
between amino acids
C. Find antibiotics which stop the
correct translation from RNA into
proteins
D. Color the proteins blue, or green,
and the rRNA molecules orange.
23. Because the cell has many things in
it:
A. Different reactions and products
are localized to different areas
B. Molecules are used to organize the
cell processes
C. Transport in the cell is very
important
D. Less than a thousand reactions
occur
24. In X-ray crystallography x-rays are
fired at a crystal of molecules. The
shape of the molecule can be
calculated because:
A. The resulting diffraction pattern is
depedndent
on
the
internal
structure of the crystal
B. The ordering of the molecules in
the crystal diffracts or scatters the
x-rays into hundreds of strong rays
C. The crystal is cooled by cold
nitrogen gas to help it withstand
the radiation
26. Gleevec
A. Is an example of rational drug
design
B. Is an example of targeted therapy
C. Is a tyrosine-kinase inhibitor
D. Can be used to treat multiple
cancers
27. Chronic myelogenous leukemia
(CML) :
A. involves
the
proliferation
of
leukemia cells
B. Is caused by a chromosomal
translocation
C. Involves a defective tyrosine
kinase protein
D. Causes much less white blood
cells in the blood
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Trends in Biotechnology – Practice questions for Classroom Test. 1
28. Match the number with the letter.
1.
2.
3.
4.
Anton van Leeuwenhoek
Francesco Redi
Louis Pasteur
Robert Hooke
A. First person to suggest the rejection of idea of living organism developing form
non-living matter, but not all scientists accepted his results.
B. Ended the idea of living material coming from non-living material by using
better designed lab equipment, and gave rise to today’s cell theory.
C. First person to see and name cells under a microscope
D. First person to see and describe living cells.
29. Use this diagram to label the numbered diagram.
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