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46 terms

Test #1 Final Study Questions

STUDY
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If you open a can of chicken noodle soup and immediately examine it microscopically, you will find no microoganisms. If you let the open can sit on the shelf for a few weeks and then examine it, you will find lots of microorganisms. The origin of these microorganisms is most likely:
Airborne microorganisms
Intestinal bacteria are necessary for plant-eating animals to digest:
Cellulose
Which of the following groups contains the smallest living organisms?
Bacteria
When you eat mushrooms on your pizza, you are technically eating the:
Mycelium
Red Tides are caused by:
Dinoflagellates
If an individual was bitten by a tick and develops a Bull's eye rash, which organism could be causing these symptoms?
Borrelia burgodorferi
Paralytic shellfish poisoning occurs when ________ are eaten by humans or marine mammals.
Dinoflagellates
The endosymbiotic hypothesis accounts for the origin of which cell structure?
Chloroplast
What is the second of the two names in an organism's scientific name?
Species
A zygosporangium is produced by:
the union of two haploid hyphae.
Which of the following bacteria/ disease pairs does NOT match?
Borrelia burgodorferi, Diphtheria
Bacteria are useful in all of the following ways, EXCEPT:
They transfer plasmids containing antibiotic resistance genes
What is so significant about the evolution of photosynthesis on Earth?
It allowed aerobic, multicellular organism to evolve.
The body of a fungus is generally composed of:
Hyphae
Most scientists attribute the mass extinction of the dinosaurs to:
Meteorite impact.
Mobile prokaryotes can move around with the help of:
Flagella
All of the following are ways in which anthrax can be contracted, EXCEPT:
Mosquito Bites
RNA molecules that function as enzymes:
are called ribozymes.
Fungal cell walls are different from plant cell walls because fungal walls contain:
chitin, while plant walls have cellulose
Which of the following represents an appropriate scientific name for a human?
Homo sapiens (in all italics)
Dental plaque is an example of:
A biofilm
The importance of fungi to ecosystems is mostly as a(n):
Decomposer.
An organism that decays dead organic matter is called a(n) ____________.
Saprophyte
Kelp and seaweed are types of:
Brown algae
Based on current knowledge about the conditions of the early Earth, the first organisms were most likely:
Anaerobic prokaryotes.
Which of the following is FALSE about the Endosymbiont theory?
It states that an anaerobic predatory cell engulfed an aerobic bacterium which evolved into a chloroplast
The Miller-Urey experiment showed that:
it is possible to create simple biomolecules such as sugars and amino acids by reacting ammonia, water vapor, methane, and hydrogen gas in a chamber filled with electric sparks
Which of the following has no organelles, ribosomes, or cytoplasm?
A virus
Molds easily contaminate foods because fungi:
produce huge numbers of highly mobile, airborne spores.
Who was the Swedish naturalist who established the modern binomial system for classifying organisms?
Linnaeus
Which of the following is NOT a Staph infection?
Necrotizing fasciitis
Which of the following about HIV is FALSE?
it is spread in the same way in which the Polio virus is spread
The scenario of chemical evolution leading to the origin of life on Earth is plausible because:
there was a vast period of time for simple chemicals to evolve into complex cells.
Which branch of biology attempts to reconstruct evolutionary history?
Systematics
Theories on the atmosphere of early Earth indicate that it lacked:
O2
The first multicellular terrestrial organisms were
Plants
Which of the following has pseudopods?
amoeba
Bacterial endospores are used for:
keeping the bacteria alive under harsh conditions
Which of the following can be a bacterial shape?
All of the above
Which of the following is the smallest or least inclusive group?
Family
Bacterial cell walls contain:
Peptidoglycan
Which of the following statements is FALSE:
yeasts are single-celled protists
An organism with a nucleus would be placed in which domain?
Eukarya
Upon entering a cell, a DNA virus:
B and C only
When a zygosporangium germinates, it must undergo ________ before forming a stalked sporangium.
Meiosis
Club fungi produce diploid reproductive structures called:
Basidia