Advantages of Chemicals Produced from Microbes

Q. Statin is a blood cholesterol-lowering agent produced by
[1 mark]

1. Saccharomyces cerevisiae
2. Monascus purpureus
3. Clostridium butylicum
4. Lactobacillus

Q. Match the microbial products from column I with their respective microorganisms from Column II.

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. Cholesterol-lowering statins are produced by

1. bacteria
2. fungi
3. protozoan
4. blue green algae

Q.

Match column I with column II and choose the correct option.

Column I	Column II
1. Cyclosporin A	a. Removes oily stains
2. Lipase	b. Removes blood clots
3. Streptokinase	c. Clarify fruit juice
4. Statins	d. Immunosuppressive agent
5. Pectinases and proteases	e. Lower blood cholesterol

1. 1 - a, 2 - e, 3 - d, 4 - c, 5 - b
2. 1 - b, 2 - a, 3 - e, 4 - c, 5 - d
3. 1 - d, 2 - e, 3 - a, 4 - c, 5 - b
4. 1 - d, 2 - a, 3 - b, 4 - e, 5 - c

Q. Cyclosporin A is a microbial product used as ____i____ obtained from a ______ii_______ named _____iii_______.

1. i - cholesterol lowering agent, ii - bacterium, iii - Clostridium butylicum
2. i - immunosuppresant, ii - fungus, iii - Trichoderma polysporum
3. i - immunosuppresant, ii - yeast, iii - Monascus purpureus
4. i - cholesterol lowering agent, ii - fungus, iii - Aspergillus niger

Q.

Choose the correct option-

A good producer of citric acid is?

1. Pseudomonas

2. Saccharomyces

3. Aspergillus

4. Clostridium

Q. Which one is not present in nephric filtrate?

1. Amino acid
2. Vitamin
3. None of these
4. Penicillin

Q. Assertion :'Cry' proteins are named so because they are crystal proteins. Reason: 'Cry' proteins are solubilised in acidic enviornment of insect midgut and then released toxic core fragments after proteolytic action.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. In which condition does the phenomenon of feedback repression operate in E.coli ?

Q. In which of the following, putrefying bacteria is present?

1. Liver
2. Stomach
3. Intestine
4. Colon

Q. State the medicinal value and the bioactive molecules produced by Streptococous, Monascus and Trichoderma. [3]

Q. Match the list of bioactive substances with their roles:

1. Lowering cholesterol
2. Removing oil stains
3. Clearing blood clots
4. Immunosuppressor

Q. In which way have microbes played a major role in controlling diseases caused by harmful bacteria?

Q. LSD is obtained from

1. Cannabis sativas
2. Erythroxylon coca
3. Neurospora crassa
4. Claviceps Purpurea
5. Papaver somiferum

Q. Match the list of bioactive substances with their roles:

1. Lowering cholesterol
2. Removing oil stains
3. Clearing blood clots
4. Immunosuppressor

Q. Match the list of bioactive substances with their roles:

1. Lowering cholesterol
2. Removing oil stains
3. Clearing blood clots
4. Immunosuppressor

Q. Assertion :Inhibition or death of one organism by another through the production of some byproduct is known as antibiosis. Reason: Antibiosis is a type of negative interaction.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect