Surfactants
work best against Gram-negative bacteria
dissolve membrane lipids
may also be called detergents
All of the above
The Correct Answer is D
A. Work best against Gram-negative bacteria: Surfactants disrupt membranes, and Gram-negative bacteria have an outer lipid membrane that is particularly susceptible.
B. Dissolve membrane lipids: Surfactants break down lipid layers in membranes, leading to cell lysis and death.
C. May also be called detergents: Surfactants are often referred to as detergents because of their ability to reduce surface tension and emulsify lipids.
D. All of the above: Surfactants perform all these actions, making this choice the most comprehensive description.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. It is a structural component of ribosomes: That describes rRNA rather than mRNA.
B. It carries genetic information from DNA for the purpose of synthesizing a polypeptide (protein): Messenger RNA conveys the coding sequence from DNA to the ribosome where it directs polypeptide assembly.
C. It contains an anticodon: Anticodons are features of tRNA that pair with mRNA codons; mRNA contains codons, not anticodons.
D. The ribose of its nucleotides is missing an oxygen: Missing an oxygen on the 2′ carbon describes deoxyribose in DNA nucleotides; RNA nucleotides (including mRNA) have ribose with the 2′ oxygen present.
Correct Answer is C
Explanation
A. Mitosis: Mitosis is a mode of nuclear division characteristic of eukaryotic cells that have a defined nucleus and mitotic spindle; prokaryotes lack a nucleus and do not undergo mitosis.
B. Meiosis: Meiosis is a form of reductive nuclear division associated with sexual reproduction in eukaryotes; prokaryotes do not perform meiosis.
C. Binary fission: Binary fission is the asexual division process used by most prokaryotes, where the cell duplicates its DNA and divides into two genetically similar daughter cells.
D. All of the above: This would imply prokaryotes use mitosis and meiosis as well as binary fission; because mitosis and meiosis are eukaryotic processes, this option is not accurate.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.