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on the last screen you identified key differences between prokaryotes a…

Question

on the last screen you identified key differences between prokaryotes and eukaryotes: prokaryotes lack a nucleus and organelles, are smaller than eukaryotes, and have a smaller genome. shown at right is a diagram of a eukaryotic cell with a mitochondrion (singular for mitochondria). which of these traits of prokaryotes do you also see in the diagram of the mitochondria? select all that apply: genome smaller than eukaryotes no organelles no nucleus overall size smaller than eukaryotes

Explanation:

Brief Explanations
  1. Genome smaller than eukaryotes: Mitochondria have their own genome (mtDNA) which is much smaller than the nuclear genome of eukaryotes (and the overall eukaryotic genome).
  2. No nucleus: Mitochondria are organelles and do not have a nucleus (they have their own circular DNA, similar to prokaryotic DNA, but no nuclear structure).
  3. Overall size smaller than eukaryotes: Mitochondria are small organelles within the larger eukaryotic cell, so their size is smaller than the eukaryotic cell (the "eukaryotes" here refers to the eukaryotic cell, as mitochondria are within it).
  4. No organelles: Mitochondria do have their own internal structures (like cristae), but the option "No organelles" is incorrect because mitochondria themselves are organelles, and they have internal components. Wait, correction: Wait, the question is about traits of prokaryotes seen in mitochondria. Prokaryotes have no organelles (they are unicellular, no membrane - bound organelles), but mitochondria are organelles. Wait, no—mitochondria are thought to have originated from prokaryotes (endosymbiosis theory). So mitochondria, like prokaryotes: no nucleus (correct), genome smaller (correct), overall size smaller than the eukaryotic cell (correct). The "No organelles" is incorrect because mitochondria are organelles and they have internal structures (so they do have organelles? Wait, no—prokaryotes have no membrane - bound organelles. Mitochondria are membrane - bound organelles, but their own internal structure: they have cristae, but do they have organelles? No, within the mitochondrion, there are no membrane - bound organelles (unlike the eukaryotic cell which has many). So maybe "No organelles" is correct? Wait, the prokaryote trait is "lack organelles" (they have no membrane - bound organelles). Mitochondria, as endosymbionts, have their own DNA, no nucleus, small genome, small size. Let's re - evaluate:
  • Genome smaller than eukaryotes: Mitochondrial genome is much smaller than the eukaryotic nuclear genome (and the eukaryotic cell's overall genome), so this is correct.
  • No nucleus: Mitochondria do not have a nucleus (they have circular DNA, no nuclear envelope), so this is correct (prokaryotes also have no nucleus).
  • Overall size smaller than eukaryotes: Mitochondria are small organelles within the eukaryotic cell, so their size is smaller than the eukaryotic cell (the "eukaryotes" here is the eukaryotic cell), so this is correct.
  • No organelles: Prokaryotes have no membrane - bound organelles. Mitochondria are membrane - bound organelles, but within the mitochondrion, there are no membrane - bound organelles (unlike the eukaryotic cell which has Golgi, ER, etc.). Wait, but the option "No organelles" is a bit ambiguous. But according to endosymbiosis theory, mitochondria (like prokaryotes) have no nucleus, small genome, small size. The "No organelles" is incorrect because mitochondria are organelles and they have internal structures (cristae), so they do have organelles (just not membrane - bound ones in the way eukaryotic cells have). So the correct options are Genome smaller than eukaryotes, No nucleus, Overall size smaller than eukaryotes.

Wait, let's re - check the options:

  • "Genome smaller than eukaryotes": Mitochondrial DNA is much smaller than the eukaryotic nuclear DNA (and the cell's total genome), so correct.
  • "No organelles": Prokaryotes have no membrane - bound organelles. Mitochondria are membrane - bound organelles, and they have internal structures (cristae), so they do have organelles (just not the same…

Answer:

  • Genome smaller than eukaryotes
  • No nucleus
  • Overall size smaller than eukaryotes