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Planctomycetes: Quiz


Question 1: While they don't have a nucleus in the ________ sense, the nuclear material can sometimes be enclosed in a double membrane.

Question 2: Planctomycetes are a phylum of aquatic ________ and are found in field samples of brackish, and marine and fresh water samples.
Gram-negative bacteriaGram-positive bacteriaBacteriaCorynebacterium

Question 3: ________ sequencing shows that the planctomycetes are distantly related to the other bacteria.
RNANon-coding RNASmall interfering RNADNA

Question 4: Murein is an important ________ present in most bacterial cell walls that serves as a protective component in the cell wall skeleton.
Poly(methyl methacrylate)PolystyreneCopolymerGlass transition

Question 5: [1] A number of essential pathways are not organised as ________, which is unusual for bacteria (Glöckner, 2003).
Trp operonOperonTranscription (genetics)DNA

Question 6: ________ has postulated that the Planctomycetes are within the clade Planctobacteria in the larger clade Gracilicutes.
Thomas Cavalier-SmithProtistFungusAnimal

Question 7: The organisms belonging to this group lack murein in their ________.
Cell wallCell envelopeChloroplastBacteria

Question 8: Instead their walls are made up of glycoprotein rich in ________.
DizocilpineGlutamineNitrous oxideGlutamic acid

Question 9: Planctomycetes have internal structures that are more complex than would be typically expected in ________.
ProkaryoteCyanobacteriaGram-positive bacteriaBacteria

Question 10: In addition to this nucleoid, there are two other membrane-separated compartments; the pirellulosome or riboplasm, which contains the ribosome and related ________, and the ribosome-free paryphoplasm (Glockner, 2003).

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