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Microbial interactions & Microbes in food and agriculture

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

The first step to discover novel enzymes catalyzing a target reaction is to find a gene encoding an enzyme ___________ that chemical transformation.

a)

catalyzing

b)

metabolyzing

c)

analyzing

d)

refurbishing

2.

High-throughput Sequencing is a newly invented technology alternative to___________.

a)

microarray

b)

microscopy

c)

electron microscopy

d)

illusion

3.

Since High through-put screening (HTS) can directly count the number of DNA/RNA fragments, HTS is believed to be also more ____________ than microarray

a)

quantitative

b)

qualitative

c)

non-quantitative

d)

symbolic

4.

PREBIOTIC FIBERS are non-digestible part of foods and pick the Odd one out from the following....

a)

Yogurt

b)

Bananas

c)

Garlic

d)

Onion

5.

___________ are live beneficial bacteria that are naturally created by the process of fermentation.

a)

Probiotics

b)

Prebiotics

c)

Abiotics

d)

Aromatic Bacteria

6.

_____________fight harmful bacteria in the intestines, prevent constipation and give the immune system a boost and also and helps reduce intestinal concentrations of certain carcinogenic enzymes.

a)

Bifidobacterium

b)

Lactobacillus

c)

Baculoviruses

d)

Lepitodpterium

7.

The most fully documented disease altering the gut microbiota is acute infectious _________ in childhood.

a)

diarrhoea

b)

pneumonia

c)

rhinitis

d)

erythema

8.

The ________ microbiota, has even been considered to be an “essential organ”, carrying approximately 150 times more genes than are found in the entire human genome.

a)

Gut

b)

Small Intestine

c)

Large Intestine

d)

Brain

9.

Bacteriophages with tail are___________.

a)

motile on bacterial surface

b)

just appendages

c)

for conjugation

d)

for digestion

10.

Energy spilling is a more plausible mechanism for efficiency declines than the commonly invoked increase in maintenance-energy demands is also called _________.

a)

waste metabolism

b)

energy metabolism

c)

water metabolism

d)

repair mechanism

11.

Measurable physiological adjustments of the soil microbial biomass reflect shifts from colder-to-warmer-adapted___________.

a)

taxa

b)

neuron

c)

axial filament

d)

fauna

12.

The process of using a natural predator to control a pathogen is called __________.

a)

biological control

b)

genetic engineering

c)

Calvinism

d)

Darwinism

13.

Which of the following is NOT a biopesticide?

a)

Xanthomonas campestris

b)

Nucleopolyhedrovirus

c)

Bacillus thuringiensis

d)

Trichoderma harzianum

14.

__________ are the most efficient biofertilizer as per the quantity of nitrogen fixed concerned and they are of 7Genera.

a)

Rhizobium

b)

Azospirillum

c)

Anabena

d)

Nostoc

15.

_______ are multi subunit bacteriocins - resemble the tails of bacteriophages.

a)

Tailocins

b)

Colchicin

c)

Microcin

d)

Abiocin