Podcast
Questions and Answers
What does 'Contains' refer to in cell structure?
What does 'Contains' refer to in cell structure?
- DNA
- Cell wall and cell membrane (correct)
- Cytoplasm
- Nucleus
Prokaryotic cells contain a nucleus.
Prokaryotic cells contain a nucleus.
False (B)
Name three harmful effects of bacteria.
Name three harmful effects of bacteria.
Tooth decay, acne, strep, food poisoning
Name three helpful effects of bacteria.
Name three helpful effects of bacteria.
What is the function of an enzyme?
What is the function of an enzyme?
What shape is referred to as 'Cocci'?
What shape is referred to as 'Cocci'?
What shape does 'Bacilli' represent?
What shape does 'Bacilli' represent?
What shape does 'Spirilla' describe?
What shape does 'Spirilla' describe?
What process is associated with 'They' in relation to bacteria?
What process is associated with 'They' in relation to bacteria?
What are endospores?
What are endospores?
Study Notes
Domain-Prokarya Overview
- Prokaryotic cells possess a cell wall and cell membrane, which are essential for maintaining structure and integrity.
- They lack a nucleus, differentiating them from eukaryotic cells.
Harmful Bacteria
- Certain prokaryotes can cause various harmful conditions, including:
- Tooth decay
- Acne
- Streptococcus infections
- Food poisoning
Beneficial Bacteria
- Prokaryotes play important roles in various beneficial processes:
- Fermentation in food production (e.g., cheese)
- Acting as decomposers in ecosystems
- Production of medicines, such as antibiotics
Bacterial Shapes
- Prokaryotes can be classified by their shapes:
- Cocci: spherical shape; the term "strep" refers to a chain formation of cocci.
- Bacilli: rod-shaped bacteria, commonly involved in various infections.
- Spirilla: spiral-shaped bacteria, known for their unique movements.
Bacterial Processes
- Pasteurization is a method used to eliminate harmful bacteria from food and beverages, ensuring safety.
- Endospores are a robust survival mechanism produced by some bacteria, allowing them to withstand harsh conditions.
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Description
Explore the essential concepts of Prokarya with these flashcards covering key characteristics, harmful and helpful examples, and terminology. Perfect for students looking to solidify their understanding of this domain.
