Prepared by: Yeshaneh Adimasu
Yeshaneh Tube
Instruction: Choose
the correct answer from the given alternatives
1.
________ is a mission-oriented science that focus on the protection
and restoration of biodiversity and the diversity of life on the earth.
A/ Environmental Biology C/
Conservation Biology
B/ Developmental biology D/ Systematic Biology
Answewr: C
2. Which one of the following is not the
importance of protecting natural resources?
A/ Protect wildlife and preserve it for
future generations
B/ Improve water quality and air quality
C/ Preserve open and green spaces
D/ Increase exploitation of
natural resources by humans
Answewr: D
3.
________ is a strategy of increasing the micronutrients level in food group
through the uses of modern biotechnological techniques and traditional plant
breading and agronomic practices.
A/ Biofortification B/ Food security C/
Food insecurity D/ Nutrition
Answewr: A
4. Based on FDA, The condition when the
person become “too short” due to malnutrition is-----
A/ Good nutrition B/ Over nutrition C/ Stunting D/ Wasting
Answewr: C
5. Which one of the following is not the
major objectives to be the organisms are being genetically modified?
A/ Increase yield and to obtain novel
products
B/ Enhance of contamination from
industrial, and municipal wastes.
C/ Diagnosis and treatment of
diseases
D/ Production for pharmaceuticals and gene
therapy
Answewr: B
6. Which one is not the reason for
microorganisms are a preferable sources of single cell protein?
A/ Have short life cycle
B/ Produce better protein in terms of
quality and the quantity
C/ Not affected by fluctuation of weather
condition
D/ Can be grow in cheap media in small amount
Answewr: D
7.
In developed country, the single cell protein used as an animal feed
called Pruteen is produced from-----?
A/ Methylophilus methylotrophus B/ Spirulina C/ Fusarium venenatum D/ Chlorella
Answewr: A
8. Yogurt is one of the common fermented
food product produced as a result of fermentation carried out by a starter
culture-----------?
A/ Streptococcus pneumonia and Lactobacillus
acidophilus
B/Streptococcus thermophilus
and Lactobacillus bulgaricus
C/ Streptococcus cremoris and Leuconostoc
sp.
D/ Lactobacillus plantarum
and Pediococcus cerevisiae
Answewr: B
9. Which one of the following is the product of homo-lactic acid fermentation?
A/ Glucose B/Ethanol C/Lactic
acid D/ Carbon
dioxide
Answewr: C
10.
In alcoholic production cereal grains are malted. So, malt is----?
A/ Partially germinated barely C/ Crushed cereals
B/
Liquid extract
D/ Fermented grains
Answewr: A
11. The alcoholic content of various alcoholic
beverage is enhanced by the process of-----?
A/
Microbial action B/
Fermentation C/ Distillation D/ Increase substrate
Answewr: C
12.
Which one of the following is true about lager beer?
A/
Produced by top fermentation
C/ The starter culture is Saccharomyces cerevisiae
B/ Fermented by low temperature D/ The alcohol content is reaches up to 10%
Answewr: B
13.
In bakery production, the process of releasing of gas (CO2) to
produce porous and spongy product via microbial action is------?
A/ Leavening B/ Imparting C/ Baking D/ Conditioning
Answewr: A
14. Animals
can be genetically modified (transgenic animals) for the purpose of all except?
A/ Enhancing
reproductive performance C/ Increasing growth rate
B/ Improving
carcass composition D/ Increasing disease susceptibility
Answer: D
15. _____ is
method of transferring a fragments of tissue from an animal or plant to an
artificial environment for production of disease-free
and high quality products.
A/
Transplantation B/ Tissue culture
C/ Mixed culture
D/Pure culture
Answer: B
16. One of the
major application of biology in human health and wellbeing’s are the production
of antibiotics. This products are produced due to……?
A/ Cooperation for
limited nutrient C/ Antagonism for inadequate of food resources
D/ Synergism for
the presence of space D/ The
occurrence of oxygen abundance
17. Based on nutritional
requirements, nearly all pathogenic microorganisms are grouped under—
A/
Chemolithoheterotroph B/
Photolithoautotroph
C/
Chemoorganoheterotroph D/
Chemolithoautotroph
Answewr: C
18. When the archaea
bacteria that can survive and live in very saline environments (like the Dead
Sea) is.
A/ Hyperthermophile B/ Cryophile C/ Psychrophile D/
Halophile
Answewr: D
19.
Archaea have become the source of enzymes harnessed as the basis for the
amplification of the DNA in a technique called Polymerase chain reaction (PCR).
This enzyme is an essential part of the development of molecular biology which
obtained from
A/
Staphylococcus aurous B/
Methanogen C/
Thermus aquaticus D/ Toxoplasma
gondii
Answewr: C
20.
In a viral replication cycle the assembly of newly synthesized viral components
into complete viruses in-----.
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