1 / 10

Exploring Bacteria and Protists: Classification, Movement, and Impact on Life

This lesson delves into the fascinating world of bacteria and protists, two essential groups of microbes. Bacteria are classified by their shapes—spiral (spirillum), rod (bacillus), and spherical (coccus)—and can be both helpful, by producing antibiotics and vitamin K, and harmful, as disease-causing agents. Protists, primarily single-celled organisms residing in moist environments, are categorized by movement: Euglena moves with flagella, Paramecium uses cilia, and Amoeba relies on pseudopods. Both groups play significant roles in ecosystems, food production, and human health.

kimberly
Télécharger la présentation

Exploring Bacteria and Protists: Classification, Movement, and Impact on Life

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Observing Protists and Bacteria

  2. Bacteria • Classification: by the shape of the cell • Spirillum: bacterium that has a spiral shape • Bacillus: a rod-shaped bacterium • Coccus: a round or spherical bacterium

  3. Bacteria • Helpful: • Produce antibiotics • Produce vitamin K (live in your intestines) • Harmful: • Can cause disease • Produce toxins (poison)

  4. Protists • Classification: by how they move and get food • Most are single-celled and live in moist environments

  5. Euglena • A single-celled protist that uses one or more flagella to move • Flagella: a whip-like structure that moves back and forth to push a euglena through water • Have chloroplasts and can photosynthesize • Can also get food by eating other organisms

  6. Paramecium • A single-celled protist that uses cilia to move • Cilia: tiny hair-like structures on the outside of the paramecium cell • Uses cilia to get food and to move

  7. Amoeba • Single-celled protistthat uses pseudopods to move and to trap food • Pseudopods: a temporary, finger-like structure that is an extension of the cell

  8. Protists • Helpful: • Help produce toothpaste, pudding, ice cream • In fertilizers • Harmful: • Can cause malaria • Can cause potato blight

  9. Lesson Essential Questions • What are some of the differences between the cells of the two groups of microbes? • Bacteria: single-celled, classified by shape • Protists: live in moist environments, classified by how they move and obtain food

  10. Lesson Essential Questions • How do the different protists move and obtain energy? • Euglena: move with flagella; photosynthesize or consume other organisms • Paramecium: move with cilia; use cilia to help consume other organisms • Amoeba: move with pseudopods; use pseudopods to consume other organisms

More Related