According to Whittaker's system of classification, which kingdom includes multicellular, photosynthetic organisms with cell walls made of cellulose?

• A. Fungi
• B. Plantae
• C. Animalia
• D. Monera

Answer: (B)

Verified step by step guidance

1. Understand Whittaker's five-kingdom classification system, which divides living organisms into Monera, Protista, Fungi, Plantae, and Animalia based on characteristics such as cell type, cell walls, nutrition, and complexity.
2. Identify the key features given in the problem: the organisms are multicellular, photosynthetic, and have cell walls made of cellulose.
3. Recall that photosynthesis is the process by which organisms convert light energy into chemical energy, and it is a defining characteristic of plants.
4. Recognize that cellulose is a carbohydrate that forms the structural component of plant cell walls, distinguishing them from fungi (which have chitin in their cell walls) and animals (which lack cell walls).
5. Conclude that the kingdom fitting all these criteria—multicellularity, photosynthesis, and cellulose cell walls—is Plantae.