Quiz_Protista 1. Protists which are diploid reproduce sexually by: Cyst formation Zygotic meiosis Gametic meiosis Binary fission Explanation:Diploid protists reproduce sexually through gametic meiosis, where gametes are formed by meiosis and fuse to form a diploid zygote. 2. The scientist who created the group Protista for both unicellular plants and animals, was: Koch Pasteur Lister Haeckel Explanation:Ernst Haeckel was the scientist who proposed the kingdom Protista to include all unicellular organisms, recognizing their distinct nature from plants and animals. 3. In the two kingdom system of classification, Euglena is included in: Plantae Animalia Protista Both (a) and (b) Explanation:Euglena exhibits characteristics of both plants and animals. It can photosynthesize like plants and move like animals, thus it was included in both Animalia and Plantae in the two-kingdom system. 4. If all ponds and puddles are destroyed the organism likely to be destroyed is: Trypanosoma Leishmania Plasmodium Ascaris Explanation:Plasmodium, the parasite responsible for malaria, relies on stagnant water bodies like ponds and puddles for the breeding of its mosquito vector. 5. The five kingdom system of classification was proposed by: Whittaker Linnaeus Copeland John Ray Explanation:The five kingdom system of classification, which includes Monera, Protista, Fungi, Plantae, and Animalia, was proposed by Robert Whittaker in 1969. This system is based on cell structure, mode of nutrition, and reproduction. 6. Amoeba is placed in the phylum Protozoa because of: Acellular body Presence of cell wall Presence of contractile vacuole Phagocytic mode of nutrition Explanation:Amoeba is classified under the phylum Protozoa due to its acellular body structure and its ability to perform phagocytosis, a process of engulfing food particles. 7. Some biologists have used the term Mycetozoa for: Zygomycetes Slime molds Cyanobacteria Radiolarians Explanation:The term Mycetozoa is used by some biologists to refer to slime molds, which are protists that exhibit both fungal and amoeboid characteristics during their life cycle. 8. Distinction between prokaryotes and eukaryotes is mainly based on: Chromosomes only Cell organelles only All of the above Nucleus only Explanation:The distinction between prokaryotes and eukaryotes is based on several factors, including the presence of a nucleus, cell organelles, and the structure of chromosomes. 9. All protozoans possess: Contractile vacuole Holozoic nutrition Eukaryotic organization Pseudopodia Explanation:All protozoans possess a eukaryotic organization, meaning they have a well-defined nucleus and other membrane-bound organelles. 10. Acellular slime mold is/are: Anabaena Dictyostelium None of these Physarum Explanation:Physarum is an example of an acellular slime mold, which exists as a large, multinucleate, single cell during its vegetative phase, known as a plasmodium. Loading …
