Question

You are looking at a cell under a microscope and trying to determine whether it is a prokaryote or a eukaryote. You know it is a eukaryote if you see:

a. DNA
b. a plasma membrane
c. a nucleus
d. a cell wall

Answer 1

c

Step-by-step explanation:

prokaryotes don't have a nucleus

Answer 2

To identify a eukaryote under a microscope, look for a nucleus. Both eukaryotic and prokaryotic cells have DNA, a plasma membrane, and ribosomes, but only eukaryotes have a membrane-bound nucleus.

c is correct

Step-by-step explanation:

You can determine a cell is a eukaryote if you see a nucleus. This is the key feature that distinguishes eukaryotic cells from prokaryotic cells. While both cell types have a plasma membrane, DNA, and ribosomes, the presence of a membrane-bound nucleus is unique to eukaryotes.

Prokaryotes, on the other hand, have DNA that is not enclosed in a membrane, typically located in a region called the nucleoid. In addition, while some eukaryotic cells do have a cell wall, it is not a defining characteristic since not all eukaryotes have one, such as animal cells. Therefore, when identifying a eukaryotic cell under a microscope, the presence of a nucleus is the definitive indicator.