Which of the following bacteria is used extensively as a bio-pesticide?

(a)

Bacillus thurigiensis

(b)

Bacillus subtilis

(c)

Lactobacillus acidophilus

(d)

Streptococcus lactis

Which of the following is not involved in nitrogen fixation?

(a)

Pseudomonas

(b)

Azotobacter

(c)

Anabaena

(d)

Nostac

The enzyme________is got from Aspergillus.

(a)

Rennet

(b)

Zymase

(c)

Amylase

(d)

Lipase

________is not used as a biofertilizer

(a)

Bacillus thuringiensis

(b)

Rhizobium

(c)

Nostoc

(d)

Anabaena

Biofertilizers are not involved in this process

(a)

increase water holding capacity of soil

(b)

Help to degrade pollutants

(c)

Provide nutrients

(d)

Improve soil texture

_______is a prokaryotic organism helping to improve fertility of the soil

(a)

Glomus

(b)

Azolla

(c)

legume

(d)

Tolypothrix

Rhizopus oryzae can produce_________

(a)

Fumaric acid

(b)

Malic acid

(c)

Acetic acid

(d)

Citric acid

Which of the following are likely to be present in deep-sea water?

(a)

Archaebacteria

(b)

Eubacteria

(c)

Blue-green algae

(d)

Saprophytic fungi

What gases are produced in anaerobic sludge digesters?

(a)

Methane and CO₂ only

(b)

Methane, hydrogen sulphide and CO₂

(c)

Methane, hydrogen sulphide and O₂

(d)

Hydrogen sulphide and CO₂

Which of the following is wrongly matched in the given table?

(a)

Microbe	Product	Application
Trichoderma polysporum	Cyclosporin A	Immunosuppressive drug

(b)

Microbe	Product	Application
Monascus purpureus	Statins	Lowering of blood cholesterol

(c)

Microbe	Product	Application
Streptococcus	Sterptockinase	Removal of clot from blood vessel

(d)

Microbe	Product	Application
Clostridium butylicum	Lipase	Removal of oil stains

Name the person who was the first to use the term antibiotic

(a)

Selman Waksman

(b)

Alexander Flemming

(c)

Earnest Chain

(d)

Howard Florey

Chlortetracycline was isolated from the culture _________________

(a)

Streptomyces aureofaciens

(b)

Streptomyces griseus

(c)

Streptococcus lactis

(d)

Aspergillus niger

Assertion (A): Oenology deals with study of wine and its preparation.
Reason (R): Zymology deals with biochemical process of fermentation and its uses.

(a)

A is right R is wrong

(b)

R explains A.

(c)

A and R are wrong.

(d)

A and R are right. R cannot explain A.

Which of the following plant species is the most suitable oilseed for biodirect production?

(a)

Ground nut

(b)

Areca nut

(c)

Jatropha curcas

(d)

Phyllanthus amarus

Corn \(\overset { A }{ \rightarrow } \) Fermentable sugars \(\overset { B }{ \rightarrow } \) Ethanol. Find out A and B for above statement.

(a)

A - Agaricus, B - Sarcina

(b)

A - Zymomonas, B - Vinegar

(c)

A - Rhizopus, B - Aspergillus

(d)

A - Aspergillus, B - Yeast

How is milk converted into curd? Explain the process of curd formation

What is biological oxygen demand?

How are antibiotics classified?

What is antibiotic resistance?

Write the equation for fermentation of glucose

Why is curd more nutritious than milk?

Compare Broad spectrum antibiotics with narrow-spectrum antibiotics

What is studied under zymology and oenology?

Complete the table by filling with respective organic acid and microbes.

Organic acid	Microbes
Acetic acid	............W..........
.......X.......	Aspergillus niger
Fumaric acid	...........Y...........
........Z........	Clostridium butyricum

Name the biocontrol agents used to get rid of Aphids & mosquito larvae

Write the key features of organic farming.

Justify the role of microbes as a bio-fertilizer

How is yoghurt produced?

What is SCP?

How can we avoid antibiotic resistance?

What is 'activated sludge' in sewage treatment?

How does Delta-endotoxin affect insects?

What are bio weedicides?

Explain the types of bioremediation

Name the act enforced by government to conserve water bodies. Also, mention its objectives.

Write short notes on the following.
a) Brewer's yeast
b) Ideonella sakaiensis
c) Microbial fuel cells

When does antibiotic resistance develop?

What is the key difference between primary and secondary sewage treatment?

Explain the process of sewage treatment.

Explain the working of a biogas plant

Describe the stages of Sewage treatment process

Bioremediation & microbes - Discuss.