Virtual Labs

Biotechnology and Biomedical Engineering Microbiology Virtual Lab I Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Streak Plate Method

Choose difficulty:

Beginner

Intermediate

Advanced

1. A pure culture is best defined as

a: group of microorganisms which are genetically different Explanation

Explanation

b: group of microorganisms that are genetically similar Explanation

Explanation

c: group of microorganisms which are genetically similar, but morphologically different Explanation

Explanation

d: None of the above Explanation

Explanation

2. During streak plate technique, the loop is heated in between the sector of quadrants. This ensures

a: To get dense colonies Explanation

Explanation

b: To get individual isolated colonies Explanation

Explanation

c: To differentiate Gram positive and Gram negative bacteria Explanation

Explanation

d: To kill the infectious microorganism Explanation

Explanation

3. The order of growth seen in the first, second, third and the fourth quadrant of a four quadrant streak plate

a: Heavy confluent growth, dense growth, weak growth and isolated colonies Explanation

Explanation

b: Weak growth, heavy confluent growth, dense growth, isolated colonies Explanation

Explanation

c: Dense growth, heavy confluent growth, weak growth , isolated colonies Explanation

Explanation

d: All of the above Explanation

Explanation

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