Cellulose is usually not found in:
Correct answer: C. Middle lamella
- A. Primary cell wall
- B. Secondary cell wall
- C. Middle lamella
- D. All contain cellulose
Explanation
The correct answer is the Middle lamella because it is made up mainly of pectin and does not include cellulose, which is a significant component of both the primary and secondary cell walls. Options like Primary cell wall and Secondary cell wall are incorrect because they both contain cellulose, which provides structural integrity to plant cells. The option All contain cellulose is also incorrect, as it implies that all mentioned structures contain cellulose, which is not the case for the middle lamella.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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