Practice Cell Envelope - 5.1.1 | Theme A: Unity and Diversity | IB MYP Grade 11 Biology
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5.1.1 - Cell Envelope

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary component of the bacterial cell wall?

💡 Hint: Think about what gives the wall its strength.

Question 2

Easy

What color do Gram-positive bacteria appear after gram staining?

💡 Hint: They retain the first dye used in the staining process.

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 type of bacteria retains crystal violet stain?

  • Gram-positive
  • Gram-negative
  • Both

💡 Hint: Think about which type of bacteria is structurally more robust.

Question 2

True or False: All bacteria have a capsule.

  • True
  • False

💡 Hint: Recall that some bacteria may only have a slime layer.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Propose a hypothesis about how antibiotics targeting peptidoglycan would affect Gram-positive versus Gram-negative bacteria differently.

💡 Hint: Consider the composition and protection each type provides.

Question 2

Consider a scenario where a bacterial strain acquires a capsule. Predict the possible effects this change may have on its virulence and explain your reasoning.

💡 Hint: Think about the protective functions of the capsule in the context of host interactions.

Challenge and get performance evaluation