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Microbial Diversity 1&2 - Statistics
General Stats
- This quiz has been taken 5 times
- The average score is 20 of 31
Answer Stats
| Question | Answer | % Correct |
|---|---|---|
| Carl Woese's 3-domain system split prokaryotes into bacteria & what | Archaea | 100%
|
| The Archaea equivalent of Q19 is | Archaella | 100%
|
| Animals can't digest what component of a plant on their own, and rely on microorganisms to break it down instead | Cellulose | 100%
|
| Spherical bacteria are known as | Coccoid | 100%
|
| In what organism did oxygenic photosynthesis evolve | Cyanobacteria | 100%
|
| What is the most recent organism all life today descended from | LUCA | 100%
|
| DNA in circular strands are a structure that contains extra genes in bacteria, independent from the bacterial genome, what is the name of this structure | Plasmid | 100%
|
| Which clade of Proteobacteria is the closest relative to mitochondria A | Alphaproteobacteria | 75%
|
| An organism which obtains its carbon source from organic substances and its energy source from chemicals falls under which metabolic classification | Chemoheterotroph | 75%
|
| Q22 structure can be shared between cells through which process | Conjugation | 75%
|
| Eukaryotes are 'more simple' than Prokaryotes | False | 75%
|
| Rotating protein filaments driven by a protein motor and used for motility in bacteria is known as | Flagella | 75%
|
| Which genus of Alphaproteobacteria are N-Fixing symbionts of plants | Rhizobium | 75%
|
| How does the metabolism of Acetogens function | Takes in CO2 & Hydrogen, outputs Acetate | 75%
|
| The first photosynthesis didn't produce oxygen (Anoxygenic) | True | 75%
|
| Aerobic respiration is more efficient than anaerobic respiration | True | 75%
|
| The transfer of genetic information during binary fission from the parent cell tothe daughter cells is known as | Vertical transmission | 75%
|
| Two microorganisms, Prochlorococcus & Synechococcus, remove how much Carbon from the atmosphere annually | 10 billion tons | 50%
|
| When did oxygenic photosynthesis evolve | 2.7-3.5 bya | 50%
|
| Which of the 5 kingdoms within the classification of life (Whittaker, 1969) was not part of Haeckel's 1879 classifications | Bacteria | 50%
|
| Diderms have two cytoplasmic membranes as opposed to the one in monoderms, do diderms show up as positive or negative in a Gram test | Gram Negative | 50%
|
| Before oxygenic photosynthesis populated the earths atmosphere with oxygen, what were the two main compounds found in the earths atmosphere | N2 & CO2 | 50%
|
| Which compound WASN'T an input compound used during the first photosynthesis | S2 | 50%
|
| How big is the largest bacterium (Thiomargarita magnifica) | 1 cm | 25%
|
| When was the last universal common ancestor of current cellular life | 3.5-4.2 bya | 25%
|
| When did life first appear on earth | 3.8-4.3 bya | 25%
|
| What % of oxygen we breath is generated by microoragnisms | 50% | 25%
|
| Carbon makes up what % of prokaryote dry weight | 50 | 25%
|
| What organisms can use the molecule N2 found in the atmosphere to make biological molecules | Diazotrophs | 25%
|
| Q28 are all gram-positive | False | 25%
|
| What bacteria group comprises most bacteria used in medical, industrial and agricultural systems | Proteobacteria | 25%
|
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