Podcast
Questions and Answers
Who was the first person to observe and describe microorganisms accurately?
Who was the first person to observe and describe microorganisms accurately?
- Goerg Friedrich Schroder
- Theodore Schwann
- Needham
- Lazzaro Spallanzani (correct)
What did Goerg Friedrich Schroder and Theodore von Dusch observe when air passed through sterile cotton wool in a flask of heat-sterilized medium?
What did Goerg Friedrich Schroder and Theodore von Dusch observe when air passed through sterile cotton wool in a flask of heat-sterilized medium?
- Growth took place
- No growth occurred (correct)
- Bacteria increased
- Heat sterilized the medium
Which concept states that living cells can only rise from preexisting living cells?
Which concept states that living cells can only rise from preexisting living cells?
- Biogenesis (correct)
- The Germ Theory of Disease
- Spontaneous generation
- Tyndallization
Who showed that dust carries germs which contaminate sterile broth?
Who showed that dust carries germs which contaminate sterile broth?
What did Theodore Schwann observe in a flask containing nutrient solution after air passed through a red-hot tube?
What did Theodore Schwann observe in a flask containing nutrient solution after air passed through a red-hot tube?
What is the method of sterilization for three consecutive days known as, demonstrated by John Tyndall?
What is the method of sterilization for three consecutive days known as, demonstrated by John Tyndall?
What is the function of the plasma membrane in prokaryotic cells?
What is the function of the plasma membrane in prokaryotic cells?
Which type of cell has a gram-positive cell wall structure?
Which type of cell has a gram-positive cell wall structure?
What is the primary mode of reproduction in prokaryotic cells with high disruption, resistance to lysozyme, and inhibition by basic dye?
What is the primary mode of reproduction in prokaryotic cells with high disruption, resistance to lysozyme, and inhibition by basic dye?
Which prokaryotes lack a cell wall and instead contain sterols in their cell membrane?
Which prokaryotes lack a cell wall and instead contain sterols in their cell membrane?
What is the function of ribosomes in prokaryotic cells?
What is the function of ribosomes in prokaryotic cells?
Which layer of prokaryotic cells consists of a phospholipid bilayer and functions as an osmotic barrier?
Which layer of prokaryotic cells consists of a phospholipid bilayer and functions as an osmotic barrier?
What is the primary function of Beta-Lactamase?
What is the primary function of Beta-Lactamase?
Which antibiotic acts by inhibiting transpeptidase?
Which antibiotic acts by inhibiting transpeptidase?
What role do penicillin binding proteins (PBPs) play in the presence of Beta-Lactam antibiotics?
What role do penicillin binding proteins (PBPs) play in the presence of Beta-Lactam antibiotics?
What is the significance of having a high therapeutic index for a chemotherapeutic agent?
What is the significance of having a high therapeutic index for a chemotherapeutic agent?
Which molecule is involved in the synthesis of tetrahydrofolic acid (THFA)?
Which molecule is involved in the synthesis of tetrahydrofolic acid (THFA)?
Which biosafety cabinet class provides the highest level of safety to the worker?
Which biosafety cabinet class provides the highest level of safety to the worker?
What type of agents are handled in a Class III biosafety cabinet?
What type of agents are handled in a Class III biosafety cabinet?
Which biosafety cabinet type is known as Laminar flow BSC?
Which biosafety cabinet type is known as Laminar flow BSC?
Which type of biosafety cabinet has a fixed opening with 70% of the air recirculated?
Which type of biosafety cabinet has a fixed opening with 70% of the air recirculated?
What is the main function of a Class IIB biosafety cabinet?
What is the main function of a Class IIB biosafety cabinet?
Which level of biological agents has no known potential for infecting healthy people?
Which level of biological agents has no known potential for infecting healthy people?
Which type of cells contain many membrane-bound organelles such as nucleus, endoplasmic reticulum, and mitochondria?
Which type of cells contain many membrane-bound organelles such as nucleus, endoplasmic reticulum, and mitochondria?
What is a characteristic feature of eukaryotic cells that distinguishes them from prokaryotic cells?
What is a characteristic feature of eukaryotic cells that distinguishes them from prokaryotic cells?
Which organelle is commonly found in eukaryotic cells but usually absent in prokaryotic cells?
Which organelle is commonly found in eukaryotic cells but usually absent in prokaryotic cells?
What is a key difference between the genetic material of prokaryotes and eukaryotes?
What is a key difference between the genetic material of prokaryotes and eukaryotes?
Which type of cell division is primarily associated with prokaryotic cells?
Which type of cell division is primarily associated with prokaryotic cells?
What is the significance of the existence of gas vesicles in prokaryotic cells?
What is the significance of the existence of gas vesicles in prokaryotic cells?
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