Eukaryotic Cell Components – Comprehensive Check: Which of the following are present in eukaryotic cells?
Correct Answer: All of these are correct.
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.