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Biotechnology
‣
Plant Structure
Comments
Question
The cell theory states:
Options
A. Cells form as organelles and molecules become grouped together in an organized manner.
B. The normal functioning of an organism does not depend on its individual cells.
C. The cell is the basic unit of life.
D. Only eukaryotic organisms are made of cells.
Correct Answer
The cell is the basic unit of life.
Plant Structure problems
Search Results
1. The mitochondria of a eukaryotic cell is the site of
Options
A. photosynthesis
B. fatty acid metabolism
C. cellular respiration
D. protein synthesis
Show Answer
Scratch Pad
Discuss
Correct Answer: cellular respiration
2. In submerged process for the fermentation to produce citric acid,
Options
A.
A. niger
is used with solid substrate as sweet potato
B.
A. niger
floats on the surface of solution
C. Fungal mycelium grows through out the solution in a deep tank
D. both (a) and (b)
Show Answer
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Discuss
Correct Answer: Fungal mycelium grows through out the solution in a deep tank
3. What is the pH of the medium when sucrose is used as substrate for the production of citric acid?
Options
A. 3
B. 4
C. 5
D. 6
Show Answer
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Discuss
Correct Answer: 3
4. Cider vinegar is produced from
Options
A. fruit juices
B. malted grain
C. ethanol
D. ale
Show Answer
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Discuss
Correct Answer: fruit juices
5. Sugar content of the fermentation medium for citric acid is maintained at
Options
A. 10-15%
B. 15-20%
C. 20-25 %
D. 25-30 %
Show Answer
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Discuss
Correct Answer: 20-25 %
6. As the size of a cell decreases, the ratio of its surface area to volume:
Options
A. increases
B. decreases
C. stays the same
D. None of these
Show Answer
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Discuss
Correct Answer: stays the same
7. Which of the following would not be found in a prokaryotic cell?
Options
A. organelles
B. DNA
C. nucleoid
D. nucleus
Show Answer
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Discuss
Correct Answer: nucleus
8. Small circular pieces of DNA that are found in the cytoplasm of a prokaryotic cell are called:
Options
A. capsules
B. nucleoids
C. plasmids
D. ribosomes
Show Answer
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Discuss
Correct Answer: plasmids
9. Eukaryotic cells contain
Options
A. a nucleus
B. DNA
C. plasma membrane
D. mitochondria
E. All of these are correct.
Show Answer
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Discuss
Correct Answer: All of these are correct.
10. The combination of DNA and protein in the nucleus of a eukaryotic cell is called:
Options
A. nucleoplasm
B. plasmids
C. nucleoids
D. chromatin
Show Answer
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Discuss
Correct Answer: chromatin
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