MBIO 3400 Exam 3 questions n correct
answers A+ rated
Which of the following molecules links with glycolysis with the TCA cycle, and also
serves as a precursor for many biosynthetic products? - correct answer
✔✔Succinate
What proportion of known species of mushrooms are poisonous? - correct answer
✔✔5%
A bacterial phylum is a group of organisms that share a common ancestor that
diverged early from another bacterial, based on - correct answer ✔✔Small-
subunit (16S) rRNA sequences
which of the following is unique to archaea - correct answer
✔✔pseudopeptidoglycan layer
all of the following are characteristics of eukaryotic organisms except - correct
answer ✔✔all types of eukaryotic cells are surrounded by a cell wall
The term "metagenome" refers to - correct answer ✔✔the DNA sequence
obtained directly from a mixture of genomes
Two strains of E.coli were developed, each of which overproduced an amino acid,
either histidine or tryptophan. When grown together in medium with adequate
amino acids, they grew but did not associate with each other. When these strains
were grown tother in medium without histidine and tryptophan, they grew and
, formed ________ in order to _________ - correct answer ✔✔paroxysms; provide
ATP to each other to make the missing amino acids
Which of the following contains protein as high as 25% dry weight and are
excellent source of all the essential dietary amino acids - correct answer
✔✔mushrooms
an ancient _____ is assumed to be in the same lineage as mitochondria - correct
answer ✔✔Rickettsia
Members of order ____ in the human gut may couple with methanogens to
provide the hydrogen gas for methanogenesis - correct answer
✔✔Desulfurcoccales
Which of the following is not a characteristic of fungi? - correct answer
✔✔membrane lipids include ergosterol, an analog of cholesterol
The Calvin Cycle is essentially - correct answer ✔✔started by the oxygen capture
by Rubisco
Few bacteria are edible as isolated organisms because of their high content of -
correct answer ✔✔nucleic acids
a trait that differentiates all Firmicutes from Actinobacteria is - correct answer
✔✔Gram stain character
why do hyperthermophiles tend to be anaerobic - correct answer
✔✔Methanogenesis can only be performed anaerobically
answers A+ rated
Which of the following molecules links with glycolysis with the TCA cycle, and also
serves as a precursor for many biosynthetic products? - correct answer
✔✔Succinate
What proportion of known species of mushrooms are poisonous? - correct answer
✔✔5%
A bacterial phylum is a group of organisms that share a common ancestor that
diverged early from another bacterial, based on - correct answer ✔✔Small-
subunit (16S) rRNA sequences
which of the following is unique to archaea - correct answer
✔✔pseudopeptidoglycan layer
all of the following are characteristics of eukaryotic organisms except - correct
answer ✔✔all types of eukaryotic cells are surrounded by a cell wall
The term "metagenome" refers to - correct answer ✔✔the DNA sequence
obtained directly from a mixture of genomes
Two strains of E.coli were developed, each of which overproduced an amino acid,
either histidine or tryptophan. When grown together in medium with adequate
amino acids, they grew but did not associate with each other. When these strains
were grown tother in medium without histidine and tryptophan, they grew and
, formed ________ in order to _________ - correct answer ✔✔paroxysms; provide
ATP to each other to make the missing amino acids
Which of the following contains protein as high as 25% dry weight and are
excellent source of all the essential dietary amino acids - correct answer
✔✔mushrooms
an ancient _____ is assumed to be in the same lineage as mitochondria - correct
answer ✔✔Rickettsia
Members of order ____ in the human gut may couple with methanogens to
provide the hydrogen gas for methanogenesis - correct answer
✔✔Desulfurcoccales
Which of the following is not a characteristic of fungi? - correct answer
✔✔membrane lipids include ergosterol, an analog of cholesterol
The Calvin Cycle is essentially - correct answer ✔✔started by the oxygen capture
by Rubisco
Few bacteria are edible as isolated organisms because of their high content of -
correct answer ✔✔nucleic acids
a trait that differentiates all Firmicutes from Actinobacteria is - correct answer
✔✔Gram stain character
why do hyperthermophiles tend to be anaerobic - correct answer
✔✔Methanogenesis can only be performed anaerobically
