Introduction to Biotechnology Quiz Hydrogen and Methane - IPSE FPMIPA UPI

Introduction to Biotechnology

Hydrogen and Methane Quiz 

Decide whether the statements id true or false!

No	Statement	T/F
1	Methane gas occurs naturally as Will-o-the-Wisps (marsh gas), as natural gas (North Sea gas) and as a by-product of animal digestion.
2	Will-o-the-Wisps (marsh gas) is an economically important fossil fuel resulting from bacterial action over millions of years.
3	The rumen of the cow efficiently converts grass into methane. It is called as natural gas.
4	The anaerobic fermentation to produce methane from organic matter can be expressed by chemical reaction: C6H12O6 🡪 3CH4 + 3CO2
5	Only aerobic fermentation of organic matter involves the complex interaction of a number of different types of bacteria, protozoa, and fungi.
6	There are 3 stages of processing organic matter to produce methane: ●        Solubilization of the fats, proteins, and cellulose ●        Conversion to organic acids by acid bacteria ●        Methane production by hydrogenase bacteria
7	Methane gas from urban and domestic wastes can be found as organic matter that decomposes in rubbish tips created in old quarries or clay pits.
8	Agricultural wastes and sewage are fermented anaerobically to produce least than 30 per cent methane.
9	The methane gas from anaerobic fermentation of whey can be used to increase the BOD of the creamery wastes.
10	Spirulina is one kind of algae that can treated with bacteria in a digester to yield methane.
11	The raw materials for hydrogen production is water, a substance that covers 80 percent of the globe.
12	Hydrogen can be stored and has a very high calorific value
13	The enzyme hydrogenase is able to combine two hydrogen ions (H+) to form a molecule of hydrogen gas.
14	Bacterium Clostridium butyricum produce hydrogen from concentrated sugar solution for short periods of time.
15	Chlorella pyrenoidosa is one kind of algae that can produce hydrogen from water.
16	The first step of producing hydrogen from water using algae is the changes of glycolate to form formate using enzyme (glycolic oxidase) and oxygen
17	Bacteria consume the formate releasing hydrogen and carbon dioxide. This reaction involves formic hydrogenlyase.
18	The overall reaction to produce hydrogen is 2H2O 🡪 2H2 + O2
19	Hydrogen from water using chloroplasts can be produced through splitting reaction of the water molecule into oxygen atom, electrons, and hydrogen ions.
20	The reaction of hydrogen ions with electron to produce hydrogen gasz called as oxidation reaction.

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