Microbes in Industrial Products

Q.

What Is Lactic Acid Bacteria?

Q.

Match the following list of bacteria and their commercially important products:

Bacterium Product

(i) Aspergillus niger (a) Lactic acid

(ii) Acetobacter aceti (b) Butyric acid

(iii) Clostridium butylicum (c) Acetic acid

(iv) Lactobacillus (d) Citric acid

1. i-b, ii-c, iii-d, iv-a

2. i-b, ii-d, iii-c, iv-a

3. i-d, ii-c, iii-b, iv-a

4. i-d, ii-a, iii-c, iv-b

Q.

what are the factors which affect the enzyme activity?

Q.

Match Column I with Column II and select the correct option using the codes given below
$\begin{array}{cccc}& ColumnI& & ColumnII\\ a.& Citricacid& \left(i\right)& Trichoderma\\ b.& CyclosporinA& \left(ii\right)& Clostridium\\ c.& Statins& \left(iii\right)& Aspergillus\\ d.& Butyricacid& \left(iv\right)& Monascus\end{array}$

1. a - i, b - iv, c - ii, d - iii

2. a - iii, b - iv, c - i, d - ii

3. a - iii, b - i, c - ii, d - iv

4. a - iii, b - i, c - iv, d - ii

Q.

Which one of the following pairs is wrongly matched?

1. Coliforms - Vinegar

2. Methanogens - Gobar gas

3. Yeast - Ethanol

4. Streptomyces - Anitbiotics

Q. Which of the following microorganisms is used in the production of citric acid in industries?

1. Lactobacillus bulgaris
2. Penicillium citrinum
3. Asperilligus niger
4. Rhizopus nigricans

Q.

Citric acid can be produced from:

1. Aspergillus

2. Pseudomonas

3. Clostridium

4. Saccharomyces

Q. Microbes can be used in the synthesis of chemicals such as $HCl$ and $HN{O}_3$.

1. True
2. False

Q. Match Column-I with Column-II and select the correct option using the codes given below:

Column I	Column II
a. Citric acid	1. Trichoderma
b. Cyclosporin A	2. Clostridium
c. Statins	3. Aspergillus
d. Butyric acid	4. Monascus

1. a-3, b-4, c-1, d-2
2. a-3, b-1, c-2, d-4
3. a-3, b-1, c-4, d-2
4. a-1, b-4, c-2, d-3

Q. The image depicts various products produced by bacterial fermentation. Can you select the correct organism involved in the production of the various gases and organic compounds?

1. 1. Escherichia 2.Saccharomyces 3.Propionibacterium 4.Lactobacillus 5.Clostridium
2. 1.Saccharomyces 2.Clostridium 3.Propionibacterium 4.Lactobacillus 5.Escherichia
3. 1.Propionibacterium 2.Lactobacillus 3.Saccharomyces 4.Clostridium 5.Escherichia
4. 1.Propionibacterium 2, Lactobacillus 3.Escherichia Clostridium 5.Saccharomyces

Q. Spicules of silica occur in

1. Hyalonema
2. Sycon
3. Leucosolenia
4. Grantia

Q. Which of the following bacteria grow on isopropyl alcohol and convert into acetone?

1. Fermentative bacteria
2. Chemosynthetic bacteria
3. Photosynthetic purple non-sulphur bacteria
4. Nitrifying bacteria