Practice Topic 3.3: Microscopy (3.3) - Unit 1: The Building Blocks of Life
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Topic 3.3: Microscopy

Practice - Topic 3.3: Microscopy - 3.3

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the name of the instrument used to magnify objects too small to be seen with the naked eye?

  • Answer: A microscope.
  • Hint: It allows us to see the "building blocks of life" like cells.

💡 Hint: It allows us to see the "building blocks of life" like cells.

Question 2 Easy

Which type of microscope uses visible light and glass lenses to magnify images?

  • Answer: Light Microscope (LM).
  • Hint: It is the "workhorse" of the biology lab and can view living things.

💡 Hint: It is the "workhorse" of the biology lab and can view living things.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which microscope would be best for watching a live bacteria cell move?

  • Type: mcq
  • Options: A) SEM, B) TEM, C) Light Microscope
  • Correct Answer: C
  • Explanation: Light microscopes use light and do not require a vacuum, making them suitable for living specimens.
  • Hint: Remember the memory aid: Light = Live.
A) SEM
B) TEM
C) Light Microscope * **Correct Answer**: C * **Explanation**: Light microscopes use light and do not require a vacuum
making them suitable for living specimens. * **Hint**: Remember the memory aid: Light = Live.

💡 Hint: Remember the memory aid: Light = Live.

Question 2

True or False: Resolution is limited by the wavelength of the energy source used (light or electrons).

  • Type: boolean
  • Options: True, False
  • Correct Answer: True
  • Explanation: Because electron wavelengths are much shorter than light wavelengths, electron microscopes have a much higher resolution.
  • Hint: Shorter wavelengths allow you to see smaller details.
True
False * **Correct Answer**: True * **Explanation**: Because electron wavelengths are much shorter than light wavelengths
electron microscopes have a much higher resolution. * **Hint**: Shorter wavelengths allow you to see smaller details.

💡 Hint: Shorter wavelengths allow you to see smaller details.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A scientist needs to study the detailed internal structure of a virus. Which microscope should they use and why?

  • Solution: They should use a Transmission Electron Microscope (TEM). A virus is too small for the resolution of a light microscope. Since they need internal details, the TEM is better than the SEM, which only shows the surface.
  • Hint: High detail + internal view = ?

💡 Hint: High detail + internal view = ?

Challenge 2 Hard

Calculate the total magnification for the following setups and rank them from lowest to highest power:
* Setup A: Eyepiece 10x, Objective 10x
* Setup B: Eyepiece 5x, Objective 40x
* Setup C: Eyepiece 15x, Objective 4x

  • Solution:
  • A:
  • B:
  • C:
  • Rank: C (60x), A (100x), B (200x).
  • Hint: Multiply the two numbers for each setup.

Would you like me to generate some visual diagrams of what different cells look like under these various microscopes to help you compare the results?

💡 Hint: Multiply the two numbers for each setup. Would you like me to generate some **visual diagrams** of what different cells look like under these various microscopes to help you compare the results?

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