This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Dose – Effect Relationship”.
1. The time progression of drug concentration can predict the time course of the effect of the drug effect.
a) True
b) False
View Answer
Explanation: The time progression of drug concentration can never predict its own time course that is, it cannot forecast the time course of the drug effect or the scale of drug effect. Pharmacodynamics is a term used to predict the concentration-effect relationship of a drug when the concentration of the drug has reached equilibrium with a constant response.
2. Which of the following properties are not shown by Pharmacodynamics?
a) Potency
b) Efficacy
c) Efficiency
d) Color
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Explanation: Color is definitely a property not shown by Pharmacodynamics as it is independent of it. Whereas, Potency, efficacy, efficiency are very essential factors related to the sensitivity of the organ to a drug or maximum response involved in the process.
3. Which sources can serve for the natural mineral water available in bottled water?
a) Spring source
b) Lake reservoirs
c) Ocean
d) Rivers
View Answer
Explanation: Natural mineral water is collected and bottled from a location where pure water source is found, hence, spring sources serve the same purpose but lake reservoirs, Ocean, River water is un healthy and require various treatment methods to make is even consumable by humans, hence, such water source is avoided.
4. Salt is an important additive to the table water.
a) True
b) False
View Answer
Explanation: Salt is mixed with water and it dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules, the table water present under Earth consists of natural mineral water which can be used for drinking purposes but little amount of salts are added to it to balance the electrolyte content of water.
5. Which of the following is not added to nourishment beverages?
a) Sugar
b) Flavoring agents
c) Carbon dioxide
d) Chemicals
View Answer
Explanation: Sugar, Flavoring agents, Carbon dioxide and sweeteners are added to the water to make the refreshment beverages which adds to taste of the consumer, chemicals are not added to food or consumables as it is highly toxic and harmful.
6. Which of the following production stage is not followed during the initial stages?
a) Washing
b) Rinsing
c) Heating
d) Grinding
View Answer
Explanation: Rinsing is done at the last stage after the production step is over whereas, washing, Heating, Grinding, refining, filtering, re-cooling, bottling etc. are the various production steps followed during the initial fruit juice production stages.
7. Which of the following is not included in the production of waste water?
a) Washing water
b) Exhaust vapor condensate
c) Production sheds
d) Intestine contents
View Answer
Explanation: Waste water comes from various units from the industry, washing water, exhaust vapor condensate, production sheds produce a lot of waste water including the waste coming from manufacturing and packaging unit which can be further treated but intestine contents are found in the food industry and not in the beverage industry, hence, doesn’t produce any waste.
8. Which of the following waste is not generated in the mineral water industry?
a) Dioxins
b) Adhesives
c) Fibers
d) Alkali and acids
View Answer
Explanation: Dioxins, extremely harmful toxic compound which is persistent in the environment. Adhesives, Fibers, Alkali and acids and soiling from deposit bottles, waste water from cleaning facilities generate a huge amount of waste from the mineral water industry, but dioxins are generated from the chemical industries.
9. pH stabilization is done in the mixing tank.
a) True
b) False
View Answer
Explanation: pH stabilization is to stabilize the pH of the liquid to maintain the acid and basic content balance in the mixing tank and equalization tank. After the inflow of waste water Ph stabilization is done in the mixing tank by acidification.
10. Which of the following consists of waste water from soft drinks industry?
a) Inorganic pollutants
b) Organic pollutants
c) Vegetable waste
d) Cow dung
View Answer
Explanation: Soft drinks industry produce a lot of waste which contains organic pollutants which has high contents of carbohydrates and sugar, but inorganic pollutants, Vegetable waste, Cow dung is not produced in soft drinks industry.
11. Which of the following is the higher limit of the Chemical oxygen demand of fruit juices ranges from 50g/l ?
a) 200g/l
b) 500g/l
c) 25g/l
d) 10g/l
View Answer
Explanation: The Chemical oxygen demand or the COD of fruit juices ranges from 50g/l for tomato juice and to 200g/l for apricot juice, 1g of glucose is nearly equal to 1.066g of COD. So, the chemical oxygen demand of the fruit juices is really high.
12. Which of the following process is required for re-use of deposit bottles which poses threat to the environment?
a) Denitrification
b) Nitrification
c) Glycolysis
d) Esterification
View Answer
Explanation: Denitrification is the loss of nitrogen or nitrogen compounds, such as reduction of nitrates or nitrites by bacteria that results in the escape of nitrogen into the air. Denitrification of deposit bottles is done before re-use as it contains nitrogen which is added to the water as part of the label glue. Whereas, Nitrification, Glycolysis, Esterification is not involved in this process.
Sanfoundry Global Education & Learning Series – Environmental Biotechnology.
To practice all areas of Environmental Biotechnology, here is complete set of 1000+ Multiple Choice Questions and Answers.
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