2 Which kingdom contains autotrophic, multicellular; eukaryotic organisms with cell walls made of cellulose? Plantae Bacteria Fungi Animalia Protista’
The Correct Answer and Explanation is:
Correct Answer: Plantae
Explanation:
The Plantae kingdom consists of autotrophic, multicellular, eukaryotic organisms that possess cell walls made of cellulose. These defining features distinguish members of the Plantae kingdom from other kingdoms such as Bacteria, Fungi, Animalia, and Protista.
Organisms in the Plantae kingdom perform photosynthesis, a process that allows them to produce their own food using sunlight, carbon dioxide, and water. This ability makes them autotrophs—organisms that do not rely on other living things for nourishment. The key organelle responsible for this process is the chloroplast, which contains the green pigment chlorophyll.
Plantae members are multicellular, meaning they are made up of more than one cell, often organized into complex tissues and organs. These cells are eukaryotic, indicating that they have a well-defined nucleus and membrane-bound organelles.
A defining feature of plant cells is the cell wall made of cellulose. This rigid structure gives plants their shape and provides support, enabling them to grow upright and reach toward sunlight. Cellulose is a complex carbohydrate that is unique to plant cell walls and plays a major role in the plant’s structural integrity.
The Plantae kingdom includes a wide range of organisms such as mosses, ferns, conifers, and flowering plants. Unlike fungi, which have cell walls made of chitin, or animals, which lack cell walls entirely, plants use cellulose-based walls. Protists, while some are photosynthetic, are mostly unicellular and do not meet the multicellularity requirement. Bacteria are prokaryotic and lack a true nucleus.
In conclusion, the Plantae kingdom uniquely matches all the criteria: autotrophic, multicellular, eukaryotic, and having cell walls made of cellulose, making it the correct answer.
