Gram-negative Solution – Bacteria
Über den Vortrag
Der Vortrag „Gram-negative Solution – Bacteria “ von Vincent Racaniello, PhD ist Bestandteil des Kurses „Year 2 - Spring Semester: Microbes and Infectious Diseases“.
Quiz zum Vortrag
Which of the following is NOT a characteristic of Gram-negative bacteria that permits them to take in external particles?
- The hydrophobic thick murein peptidoglycan layer allows molecules to diffuse freely.
- The outer membrane has pores that allow small hydrophilic compounds to diffuse through.
- Large compounds get moved through specific transport complexes that are embedded in the membrane.
- Periplasmic spaces contain enzymes that can digest material as it comes through the outer membrane.
- The inner cell membrane has transport mechanisms that allow any materials that have been moved inside to get into the cytosol of the bacteria.
Which of the following is a structural difference in the murein of Gram-negative bacteria compared to Gram-positive bacteria?
- In Gram-negative bacteria, the murein is thinner.
- In Gram-negative bacteria, the murein is thicker.
- In Gram-negative bacteria, the murein has fewer teichoic acids.
- In Gram-negative bacteria, the murein has more teichoic acids.
- In Gram-negative bacteria, the murein is impermeable.
The cell membrane of which of the following is composed of lipopolysaccharides?
- Gram-negative bacteria
- Viruses
- Human cells
- Canine cells
- Fungi
Which of the following is also referred to as an endotoxin?
- Lipid A
- Murein
- Teichoic acid
- Lipoteichoic acid
- Lipid B
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Dozent des Vortrages Gram-negative Solution – Bacteria
Vincent Racaniello, PhD
Dr. Vincent Racaniello is a Higgins Professor of Microbiology and Immunology at Columbia University, in New York, USA.
He obtained his PhD at Mount Sinai School of Medicine, in New York City, in 1979 and joined the faculty of Columbia University in 1982.
Because of his achievements, he has received several awards, including the Irma T. Hirschl, Searle Scholars Program, Eli Lilly, and NIH Merit Awards. Dr. Racaniello is interested in using new media for medical education; he writes on his virology blog and hosts and produces several podcasts.
Within Lecturio, Dr. Racaniello teaches courses on Microbiology.
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