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Foundations in biology

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Question 17
61%

In cell biology, resolving power is defined by the limit of resolution (the minimum distance between two points at which they can still be distinguished as separate entities).

An investigator compiles resolution data for three types of microscopes: the light microscope (LM), the scanning electron microscope (SEM), and the transmission electron microscope (TEM).

Which of the following correctly orders these microscopes from the largest numerical value of their resolution limit to the smallest numerical value of their resolution limit, and correctly states whether each can resolve a eukaryotic ribosome with a diameter of 20 nm20\text{ nm}20 nm?

Order: LM→SEM→TEM\text{LM} \rightarrow \text{SEM} \rightarrow \text{TEM}LM→SEM→TEM ; Ribosome resolved? LM: No, SEM: Yes, TEM: Yes

Order: TEM→SEM→LM\text{TEM} \rightarrow \text{SEM} \rightarrow \text{LM}TEM→SEM→LM ; Ribosome resolved? LM: No, SEM: Yes, TEM: Yes

Order: LM→SEM→TEM\text{LM} \rightarrow \text{SEM} \rightarrow \text{TEM}LM→SEM→TEM ; Ribosome resolved? LM: No, SEM: No, TEM: Yes

Order: TEM→SEM→LM\text{TEM} \rightarrow \text{SEM} \rightarrow \text{LM}TEM→SEM→LM ; Ribosome resolved? LM: No, SEM: No, TEM: Yes

Foundations in biology Questions

  1. A Level
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  3. /Foundations in biology