Plant vs animal cells Which structure is present in both typical plant cells and typical animal cells?

Difficulty: Easy

Correct Answer: Mitochondria

Explanation:


Introduction / Context:
Distinguishing features of plant and animal cells is a foundational topic. While plants have unique structures such as cell walls, chloroplasts, and a large central vacuole, there are organelles shared by both lineages. Identifying what they have in common helps anchor comparative cell biology and avoids stereotyping organelles as plant- or animal-exclusive when they are not.


Given Data / Assumptions:

  • We compare typical, mature plant and animal cells.
  • We focus on widely accepted structural features.
  • Shared organelles should be core components of eukaryotic cells.


Concept / Approach:
Mitochondria are universal among aerobic eukaryotes, conducting the citric acid cycle and oxidative phosphorylation. Plants also possess mitochondria in addition to chloroplasts. Cell walls, chloroplasts, and a prominent central vacuole characterize plant cells; animal cells generally lack these structures. Plasmodesmata are plant-specific intercellular channels.


Step-by-Step Solution:

List plant-specific features: rigid cellulose cell walls, chloroplasts, plasmodesmata, large central vacuole.List common eukaryotic organelles: nucleus, ER, Golgi, mitochondria, peroxisomes, cytoskeleton.Identify the option that is shared: mitochondria occur in both plants and animals.Select “Mitochondria.”


Verification / Alternative check:
Electron micrographs and biochemical evidence (e.g., mitochondrial DNA, respiratory chains) confirm mitochondria in both plant and animal cells. Plants need mitochondrial respiration particularly in non-photosynthetic tissues and during the night.


Why Other Options Are Wrong:

  • Cell walls: typical animal cells lack a cellulose wall.
  • Central vacuoles: prominent in plants; animals may have small vesicles but not a central vacuole.
  • Chloroplasts: absent in animals.
  • Plasmodesmata networks: plant-specific intercellular connections.


Common Pitfalls:
Assuming chloroplasts replace mitochondria in plants; both coexist because many biosynthetic and respiratory demands require mitochondrial ATP and metabolic integration.


Final Answer:
Mitochondria

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