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Microbial Growth (BACTE WEEK 3)

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

How much nitrogen is required for microbial growth?

a)

10%

b)

14%

c)

16%

d)

50%

2.

Which is TRUE about the LOG phase?

a)

most active state of the cells

b)

intense metabolic activity

c)

both

d)

neither

3.

End product of entner-dourdoff pathway

I. Pyruvid acid

II. Glyceraldehyde-6-phosphate

III. Glyceraldehyde-3-phosphate

IV. Glucose-6-phosphate

a)

I only

b)

I and II

c)

I and III

d)

I and IV

e)

I, II, III, IV

4.

Change in one base

a)

Base substitution

b)

Frameshift mutation

c)

Point mutation

d)

2 of the above

e)

All of the above

5.

All are expression of genetic information EXCEPT

a)

Transcription

b)

Translation

c)

Transformation

d)

All are correct

6.

TRUE or FALSE: DNA has deoxyribose sugar

a)

TRUE

b)

False

7.

A DNA sequence that carry hereditary information that encodes for a specific product

a)

Genome

b)

Genie

c)

Genetics

d)

Gene

8.

Can survive in the presence of oxygen but do

not use oxygen for metabolism

a)

Obligate aerobes

b)

Facultative anaerobes

c)

Aerotolerant aerobes

d)

Aerotolerant anaerobes

9.

Homolactic fermentation

a)

Yeast to ethanol

b)

Lactobacillus to mixed acids

c)

Streptococcus and Lactobacillus to lactic acid

d)

Propionicbacterium to Lactic acid

10.

Simplest mobile piece of DNA

a)

Insertion sequence

b)

Transopons

c)

Chromosome

d)

Conjugation