Practice Direct Cell Counts - 7.4.1 | Module 9: Microbiology – The Unseen World of Single-Celled Life | Biology (Biology for Engineers)
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7.4.1 - Direct Cell Counts

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a counting chamber used for?

💡 Hint: Think about how you would visualize the cells.

Question 2

Easy

What does the Coulter counter measure?

💡 Hint: Consider the principles of electricity and cells.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main function of a counting chamber?

  • To incubate cultures
  • To count cells
  • To isolate colonies

💡 Hint: Think about the size and structure of the chamber.

Question 2

True or False: A Coulter counter can distinguish between viable and non-viable cells.

  • True
  • False

💡 Hint: Recall the characteristics of the Coulter counter.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A microbiologist needs to evaluate a culture that appears dense but is unsure about the viability of cells. What methods would you recommend to assess both total and viable cell counts?

💡 Hint: Consider the advantages of each method discussed.

Question 2

If a Coulter counter shows a reading of 1 x 10^8 cells/mL but you suspect that it includes dead cells, how would you go about confirming the living population, and what are the implications?

💡 Hint: Think about how to differentiate between living and total cell counts.

Challenge and get performance evaluation