Its concluded in the scientific world virus could be cured rather than a bacteria: True/False
True
False
The Correct Answer is B
Viruses cannot be “cured” in the same way bacterial infections can be treated with antibiotics. Antibiotics target specific structures or processes in bacteria, such as cell walls or protein synthesis, which viruses lack. Viral infections are managed with antiviral medications that inhibit replication or reduce symptoms, but these treatments do not completely eradicate all viruses from the body in many cases. In contrast, bacterial infections can often be fully eliminated with appropriate antibiotics. Vaccines can prevent viral infections, but once a virus has established infection, there is no universal cure comparable to antibiotics for bacteria.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Yeasts are multicellular fungi that reproduce by spore fragmentation: Multicellular fungi, such as molds, have hyphal structures and can reproduce via spore formation or fragmentation of mycelia. Yeasts, however, are unicellular and do not form multicellular hyphae under normal conditions.
B. Yeasts are unicellular fungi that reproduce by budding: Yeasts are single-celled eukaryotic fungi that reproduce primarily through asexual budding, where a new daughter cell forms as an outgrowth from the parent cell. Their unicellular structure and budding reproduction distinguish them from filamentous fungi.
C. Yeasts are prokaryotic organisms that divide by binary fission: Prokaryotic organisms, such as bacteria, lack a nucleus and organelles and reproduce primarily by binary fission. Yeasts are eukaryotic, containing a true nucleus and membrane-bound organelles, and although some yeast species may divide by fission, they are classified as eukaryotes.
D. Yeasts are photosynthetic eukaryotes with chloroplasts: Photosynthesis is carried out by plants and certain protists possessing chloroplasts. Yeasts lack chloroplasts and do not perform photosynthesis; they obtain energy through fermentation or aerobic respiration, depending on environmental conditions.
Correct Answer is B
Explanation
A. Flagella: Flagella are whip-like appendages used for motility and are commonly found in prokaryotic cells such as bacteria. They are anchored in the cell membrane and cell wall and function to propel the cell toward nutrients or away from harmful stimuli. Their presence is consistent with prokaryotic structure and physiology.
B. Nucleus: Prokaryotic cells lack a membrane-bound nucleus. Instead, their genetic material exists as a single circular DNA molecule located in the nucleoid region of the cytoplasm. The absence of a nucleus is a defining feature that differentiates prokaryotes from eukaryotes.
C. Ribosomes: Prokaryotic cells contain ribosomes, typically 70S in size, which are responsible for protein synthesis. These ribosomes are dispersed throughout the cytoplasm and facilitate translation of messenger RNA into functional proteins.
D. Cell wall: Most prokaryotes possess a rigid cell wall that maintains cell shape, provides structural support, and protects against osmotic stress. In bacteria, the cell wall is primarily composed of peptidoglycan, which differs structurally from eukaryotic cell walls.
E. Cell membrane: The plasma membrane is a phospholipid bilayer that encloses the cytoplasm of prokaryotic cells. It regulates the movement of substances in and out of the cell and houses proteins essential for energy production, nutrient transport, and signal transduction.
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