Eukaryotic Cell Components – Comprehensive Check:\nWhich of the following are present in eukaryotic cells?

Introduction / Context:
Eukaryotes (animals, plants, fungi, protists) share core features that distinguish them from prokaryotes. The question tests recognition of this suite of components.

Given Data / Assumptions:

• “Eukaryotic” implies membrane-bound organelles.
• Applies across plant and animal cells.

Concept / Approach:
Eukaryotic cells have a plasma membrane, a membrane-bound nucleus housing DNA, and energy organelles (mitochondria). Plants also have chloroplasts and a wall; animals lack chloroplasts but still possess the shared core features.

Step-by-Step Solution:
1) Check each option: nucleus (yes), DNA (yes), plasma membrane (yes), mitochondria (yes).2) “All of these are correct” follows.

Verification / Alternative check:
Microscopy and cell fractionation consistently support these structures in eukaryotes.

Why Other Options Are Wrong:
Each individual option is true but incomplete; the comprehensive answer is “All of these.”

Common Pitfalls:
Assuming that plants lack mitochondria—they do have mitochondria.

Final Answer:
All of these are correct.