Biology 9700 · AS & A Level · The microscope in cell studies

The microscope in cell studies — practice question

A student examined the same plant cells with both an electron microscope and a light microscope. The electron microscope had a magnification of $\times 1000$. The light microscope was fitted with a $\times 10$ eyepiece lens and a $\times 100$ objective lens. The student decided that the image of the plant cell produced by the electron microscope was clearer and showed more detail than the image produced by the light microscope. Which explanation supports this conclusion?

  • AThe electron microscope had a poorer resolution than the light microscope, but was better able to distinguish between two separate points.
  • BThe magnification used in the two microscopes was the same, but the electron microscope had a better resolution than the light microscope.
  • CThe student used the electron microscope at a higher magnification than the light microscope which led to an improved resolution.
  • DThe two microscopes had the same resolution, but the magnification used in the electron microscope gave an image that was ten times larger than the light microscope.

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI