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Questions and Answers
What is the primary composition of prions?
What is the primary composition of prions?
- Lipids
- Nucleic acids
- Carbohydrates
- Proteins (correct)
Which of the following structures is NOT typically found in prokaryotic cells?
Which of the following structures is NOT typically found in prokaryotic cells?
- Cell wall
- Ribosomes
- Nucleus (correct)
- Cell membrane
What process do prokaryotes use for reproduction?
What process do prokaryotes use for reproduction?
- Mitosis
- Binary fission (correct)
- Meiosis
- Sexual reproduction
Which organelle is responsible for energy production in eukaryotic cells?
Which organelle is responsible for energy production in eukaryotic cells?
Which of the following is a disease caused by prions?
Which of the following is a disease caused by prions?
Flashcards
What are Prions?
What are Prions?
Infectious agents composed only of protein, affecting mammalian brain tissue.
What are Prokaryotes?
What are Prokaryotes?
Single-celled organisms lacking membrane-bound organelles.
What is Binary Fission?
What is Binary Fission?
Asexual reproduction in bacteria: cell divides into two identical cells.
What are Endospores?
What are Endospores?
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What are Eukaryotes?
What are Eukaryotes?
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Study Notes
Prions
- Composed solely of protein.
- Capable of infecting mammalian brain tissue.
- Responsible for diseases such as mad cow disease, also known as BSE.
Cellular Microbes
Prokaryotes (Bacteria)
- Possess a simple structure including a cell membrane, cytoplasm, ribosomes, and DNA.
- May have additional features like a cell wall, pili, flagella, and glycocalyx.
- Reproduce through binary fission.
- Can form endospores to ensure survival.
- DNA can be shared through conjugation.
Eukaryotes
- Characterized by a complex structure containing membrane-bound organelles.
- Key organelles include:
- Nucleus: This contains DNA.
- Mitochondria: Responsible for energy production.
- Endoplasmic reticulum: Involved in protein synthesis.
- Golgi apparatus: Functions in protein processing.
- Lysosomes: Responsible for cellular cleanup.
- Capable of reproducing sexually or asexually.
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