1. Which microorganism is widely used as a protein-rich single-cell protein source?
A.
Spirulina
B.
Mushroom
C.
Moss
D.
Fern
Correct Answer:
Spirulina
Explanation:
Spirulina is a protein-rich cyanobacterium commonly cultivated as a source of single-cell protein.
2. Chlorella is a protein-rich microorganism belonging to which group?
A.
Green algae
B.
Mosses
C.
Ferns
D.
Flowering plants
Correct Answer:
Green algae
Explanation:
Chlorella is a unicellular green alga containing a high proportion of protein, making it useful as single-cell protein.
3. Which microorganism is commonly used as a source of single-cell protein in baking and fermentation?
A.
Yeast
B.
Earthworm
C.
Mushroom plant
D.
Lichen
Correct Answer:
Yeast
Explanation:
Yeast is a protein-rich microorganism used in fermentation and can also serve as a source of single-cell protein.
4. Which of the following is a protein-rich bacterium used in single-cell protein production?
A.
Methylophilus
B.
Rhizopus
C.
Chlorella
D.
Saccharomyces
Correct Answer:
Methylophilus
Explanation:
Methylophilus is a bacterial microorganism known for its high protein content and use in single-cell protein production.
5. Saccharomyces is a microorganism commonly known as which of the following?
A.
Yeast
B.
Green alga
C.
Cyanobacterium
D.
Filamentous fungus
Correct Answer:
Yeast
Explanation:
Saccharomyces is a yeast genus, and yeast cells are important protein-rich microorganisms used as single-cell protein sources.
6. Which microorganism is a cyanobacterium that can be used as a protein-rich food supplement?
A.
Spirulina
B.
Candida
C.
Methylophilus
D.
Fusarium
Correct Answer:
Spirulina
Explanation:
Spirulina is a cyanobacterium with high protein content and is used as a nutritional supplement.
7. Candida utilis is mainly used as a source of which nutritional product?
A.
Single-cell protein
B.
Edible oil from seeds
C.
Plant fibre
D.
Starch from roots
Correct Answer:
Single-cell protein
Explanation:
Candida utilis is a yeast that contains substantial protein and is cultivated for single-cell protein production.
8. Which group contains only protein-rich microorganisms used as single-cell protein sources?
A.
Spirulina, Chlorella, and yeast
B.
Mango, wheat, and rice
C.
Fern, moss, and pine
D.
Earthworm, fish, and chicken
Correct Answer:
Spirulina, Chlorella, and yeast
Explanation:
Spirulina, Chlorella, and yeast are microorganisms known for their high protein content and use as single-cell protein sources.
9. Which microorganism is a unicellular fungus used for producing protein-rich microbial biomass?
A.
Yeast
B.
Spirulina
C.
Chlorella
D.
Methylophilus
Correct Answer:
Yeast
Explanation:
Yeast is a unicellular fungus whose protein-rich biomass can be used as single-cell protein.
10. The main nutritional value of microorganisms such as Spirulina and Chlorella is their high content of which nutrient?
A.
Protein
B.
Cholesterol
C.
Cellulose
D.
Starch
Correct Answer:
Protein
Explanation:
Spirulina and Chlorella are valued as single-cell protein sources because their cells contain a high proportion of protein.
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