Domanda del libro di testo
Compare and contrast bacterial and archaeal cells.
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1. Introduction to Microbiology
Members of the Bacterial World
Scelta multipla
Which of the following statements is correct regarding the domain Bacteria?
A
All bacteria possess a membrane-bound nucleus.
B
Bacteria are exclusively multicellular organisms.
C
Domain Bacteria includes all known archaea.
D
Members of domain Bacteria have peptidoglycan in their cell walls.
Guida verificata passo dopo passo1
Step 1: Understand the characteristics of the domain Bacteria. Bacteria are prokaryotic organisms, meaning they do not have a membrane-bound nucleus.
Step 2: Evaluate the statement about the nucleus. Since bacteria lack a membrane-bound nucleus, the statement 'All bacteria possess a membrane-bound nucleus' is incorrect.
Step 3: Consider the cellular organization. Bacteria are generally unicellular, not exclusively multicellular, so the statement 'Bacteria are exclusively multicellular organisms' is false.
Step 4: Differentiate between domains. Domain Bacteria and domain Archaea are distinct; therefore, 'Domain Bacteria includes all known archaea' is incorrect.
Step 5: Recognize a key feature of bacteria: their cell walls contain peptidoglycan, a polymer unique to bacteria, which supports the statement 'Members of domain Bacteria have peptidoglycan in their cell walls' as correct.
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