NEET BIOLOGY

Detailed explanation-1: -Protophyta. Protophyta are “plant-like” (autotrophic) organisms that are composed mostly of unicellular algae. The dinoflagellates, diatoms and Euglena-like flagellates are photosynthetic protists.

Detailed explanation-2: -In this article the algae are defined as eukaryotic (nucleus-bearing) organisms that photosynthesize but lack the specialized multicellular reproductive structures of plants, which always contain fertile gamete-producing cells surrounded by sterile cells.

Detailed explanation-3: -Downy mildew is a type of oomycetes or water mold. Once considered a fungal disease, it is now classified in the family Peronosporaceae. There are thousands of different types of water molds, most of which are called downy mildew. Most specialize in a particular species or a group of plants.

Detailed explanation-4: -Especially in protozoa (single-celled eukaryotic organisms), vacuoles are essential cytoplasmic organs (organelles), performing functions such as storage, ingestion, digestion, excretion, and expulsion of excess water.

Detailed explanation-5: -What might happen if a protist was missing its flagellum? It wouldn’t be able to digest food.