Characteristics of microorganisms Flashcards
What are prokaryotes characterized by?
No true nucleus
Prokaryotes include organisms such as bacteria and archaea.
What distinguishes Archaea from other organisms?
Ribosomal RNA
Archaea are a distinct group of prokaryotes with unique ribosomal RNA sequences.
How are bacteria classified?
By cell wall and different growth requirements
Not all bacteria have a cell wall.
What defines eukaryotes?
True nucleus
Eukaryotes include organisms such as plants, animals, and fungi.
Do animals have cell walls?
No
Animal cells are characterized by the absence of cell walls.
What are plant cell walls composed of?
Cellulose
Cellulose provides structural support to plant cells.
What are the main characteristics of fungi?
Molds, yeasts, cell walls composed of chitin, produces spores
Fungi do not produce endospores.
What distinguishes algae in terms of pigments?
Colorful pigments
Algae can have various pigments that allow for photosynthesis.
What are protozoa classified by?
How they move
Protozoa can be classified based on their locomotion methods, such as flagella or cilia.
Fill in the blank: Plants have cell walls composed of _______.
Cellulose
True or False: All bacteria have a cell wall.
False
Some bacteria, such as mycoplasmas, lack a cell wall.
Fill in the blank: Fungi produce _______ instead of endospores.
Spores
