Which kingdom consists of multicellular eukaryotic organisms with cell walls made of cellulose Plantae Animalia Fungi Protista
The Correct Answer and Explanation is:
Correct Answer: Plantae
Explanation:
The Plantae kingdom consists of multicellular, eukaryotic organisms that have cell walls composed of cellulose. These organisms are also primarily autotrophic, meaning they produce their own food through the process of photosynthesis, using sunlight, carbon dioxide, and water. Chlorophyll, the green pigment found in chloroplasts, plays a key role in this process by capturing light energy.
One of the defining features of plant cells is the presence of a rigid cell wall made primarily of cellulose, a complex carbohydrate that provides structural support. This feature distinguishes them from animals (which lack cell walls) and fungi (whose cell walls are made of chitin).
Members of the Plantae kingdom include familiar organisms such as mosses, ferns, conifers, and flowering plants. These plants show a wide range of complexity—from simple non-vascular mosses to complex vascular plants with true roots, stems, and leaves.
Plants also exhibit an alternation of generations in their life cycle, which means they alternate between a multicellular haploid (gametophyte) phase and a multicellular diploid (sporophyte) phase. This is a unique characteristic among eukaryotic kingdoms.
Unlike protists, which may be unicellular or multicellular and have a diverse range of characteristics, all plants are consistently multicellular and specialized in structure and function. Moreover, while some protists can photosynthesize, they do not have the complex organization or true tissues that plants possess.
In conclusion, due to their multicellular nature, eukaryotic cell structure, and cell walls composed of cellulose, organisms that fall into this description belong to the kingdom Plantae. Their ability to carry out photosynthesis and their vital ecological role as primary producers further confirm their classification.
