Engineering Questions with Answers - Multiple Choice Questions
Fermentation Technology MCQ’s – Brewing Yeast – Taxonomy and Location of Enzymes
What is the location of alcohol acetyltransferase?
Explanation: Alcohol acetyltransferase is present in microsomes. Microsomes are re-formed pieces of the endoplasmic reticulum (ER) when eukaryotic cells are broken down. They are not present in healthy living cells.
Which of the following enzyme is present in the plasma membrane?
c) Steryl-ester hydrolase
Explanation: Steryl-ester hydrolase is present in the plasma membrane. Whereas melibiase and invertase are present in periplasm and Hexokinase is present in the cytoplasm of the cell. It helps in the biosynthesis of bile acids.
Saccharomyces cerevisiae belongs to the division _____________
Explanation: Saccharomyces cerevisiae belongs to the division Ascomycota. The members of division Ascomycota are commonly known as sac fungi or Ascomycetes and it is the largest phylum of Fungi with 64,000 species.
Imperfect fungi belongs to ___________
Explanation: Fungi imperfecti belong to Deuteromycota. They do not produce spores and the member of Deuteromycota are known as Deuteromycetes. Penicillium is an example of Deuteromycetes.
Oomycota are ______________
a) Parasitic to plants
b) Imperfect fungi
c) Insect parasites
Explanation: Oomycota is a fungal division that resembles algae and is often parasitic to plants. The member of division oomycota are known as oomycetes and examples are white rust, water mould and downy mildew.
Black bread mould is an example of kingdom _____________
Explanation: Black bread mould is an example of kingdom Zygomycota. The members of kingdom Zygomycota are filamentous and are insect parasites and are referred to as zygomycetes.
Which of the following is an example of Basidiomycota?
a) White rust
b) Water mould
c) Corn smut
Explanation: Corn smut is an example of Basidiomycota. It is a type of plant disease caused by the pathogenic fungus. Other examples of Basidiomycota include Sulphur fungus, black stem rust, puffball, etc
Which of the following enzyme is present in Vacuole?
a) Acid trehalase
c) Proline oxidase
Explanation: Acid trehalase enzyme is present inside the vacuoles. It is an important enzyme which is useful in the conversion of trehalose to glucose. It is also present inside the small intestine of human beings.
TCA cycle enzymes are located in ____________
b) Golgi Apparatus
c) Mitochondrial matrix
d) Plasma membrane
Explanation: TCA cycle enzymes are located in the mitochondrial matrix. It is the space between the inner membrane of mitochondria and is more viscous than the cytoplasm of the cell.
Who is ‘the father of taxonomy’?
Explanation: Carl Linnaeus is the father of taxonomy. He was a Swedish botanist, physician, and zoologist who formalized binomial nomenclature, which is the modern system of naming organisms.
The group of division is known as ____________
Explanation: The group of division is known as the Kingdom. It is ranked just below the domain. The commonly recognized kingdoms are Protista, Animalia, Plantae, and Fungi. The archaea and bacteria are grouped into one kingdom.
Which of the following is the method of raising the temperature of mash contents?
d) Enzyme addition
Explanation: Underletting is the method of raising the temperature of the contents of the mash tun by pumping hot liquor from the base. Underback is a vessel in which sweet wort is collected from the mash tun and held before delivery to the copper. Sparging is the method of providing air to the medium. An enzyme addition is increasing the rate of a reaction
Diazonium is used to differentiate between Ascomycetes and Deuteromycetes.
Explanation: Diazonium Blue B is used to differentiate between ascomycetes and basidiomycetes. The ascomycetes form asci and basidiomycetes form basidia.
Carl Linnaeus first classified organisms.
Explanation: Aristotle first classified organisms. He developed the system of classification of animals and plants. He is also regarded as ‘the father of science’.