Bio 112 Exam 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | saprobes
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| show | Nutrients acquisition via external digestion (they are a fungus that eat decay)
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| show | saprobes
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| show | Nutrients acquisition via external digestion (they are a fungus that eat decay)
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| Why is it more difficult to treat fungal infections than baterial infections in humans | show 🗑
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| show | hyphae
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| Which of these fungal features supports the phylogenetic conclusion that fungi are more closely related to animals than plants | show 🗑
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| show | The cell walls of fungi are made of chitin (similar to beatles)
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| show | pores in crosswalls
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| show | Radioactively labeled sugars produced by plants eventually show up in the fungi with which they are associated
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| t has been hypothesized that fungi and plants have a mutualistic relationship because plants make sugars available for the fungi's use. What is the best evidence in support of this hypothesis? | show 🗑
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| What group of fungi has the ability to penetrate its host's cell wall, thus increasing the efficiency with which materials are passed from fungus to host? | show 🗑
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| show | Arbuscular mycorrhizal fungi
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| Whenpathogenicfungiarefoundgrowingontherootsofvines,farmerssometimesrespondbycoveringthegroundaroundtheirvineswithplasticsheetingandpumpingagaseousfungicideintothesoil. The most important concern of farmers who engage in this practice should be that the | show 🗑
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| Whenpathogenicfungiarefoundgrowingontherootsofvines,farmerssometimesrespondbycoveringthegroundaroundtheirvineswithplasticsheetingandpumpingagaseousfungicideintothesoil. The most important concern of farmers who engage in this practice should be that the | show 🗑
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| show | These enzymes are needed to release nitrogen from dead plant material in colder environments
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| show | These enzymes are needed to release nitrogen from dead plant material in colder environments
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| show | Fungi released fixed carbon back to the environment for other plants and photosynthetic organisms the utilize
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| Among the organisms listed here, which are thought to be the closest relatives of fungi among the Eukaryotes? | show 🗑
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| Studies have shown that in some forest ecosystems carbon can move from one tree to another via mycorrhizal fungi. Which of the following features of fungal biology enables this? | show 🗑
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| Which of the following is an important role for fungi in the carbon cycle? | show 🗑
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| When a mycelium infiltrates an unexploited source of dead organic matter, what are most likely to appear within the food source soon thereafter? | show 🗑
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| Among the organisms listed here, which are thought to be the closest relatives of fungi among the Eukaryotes? | show 🗑
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| show | Fungi secrete extracellular enzymes that can break down large molecules
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| show | The cells of fungal hyphae are connected by pores that allow passage of cytoplasm from cell to cell
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| show | genetic material composed of nucleic acid
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| show | fungal enzymes
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| HIV is inactivated in the laboratory after a few minutes of sitting atroomtemperature,butthefluvirusisstillactiveaftersittingforseveralhours. What are the practical consequences of these findings?what is the function of reverse transcriptase in retrovirus | show 🗑
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| show | Fungi secrete extracellular enzymes that can break down large molecules
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| show | uses viral RNA as a template for DNA synthesis
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| show | genetic material composed of nucleic acid
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| show | interference with viral replication
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| HIV is inactivated in the laboratory after a few minutes of sitting atroomtemperature,butthefluvirusisstillactiveaftersittingforseveralhours. What are the practical consequences of these findings?what is the function of reverse transcriptase in retrovirus | show 🗑
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| show | uses viral RNA as a template for DNA synthesis
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| show | interference with viral replication
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| show | host cells lack enzymes that can replicate the viral genome
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| You just discovered a new virus. This virus infects heart muscle, where it causes inflammation, and has a very high mutation rate. Which of the following is the best strategy for finding a treatment for this virus? | show 🗑
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| what would the result be if a drug that blocks the action of rna polymerase was introduced into a virus-infected organism? | show 🗑
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| Viruses use the host's machinery to make copies of themselves. However, some human viruses require a type of replication that humans do not normally have. For example, humans normally do not have the ability to convert RNA into DNA. How can these types of | show 🗑
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| show | An RNA based lysogenic virus
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| show | Doesnt need to consume energy to survive and unable to replicate without metabolic machinery
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| What is the main structural difference between enveloped and nonenveloped viruses? | show 🗑
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| show | Prevent the formation of active viral protein uses
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| show | Epidemic affects a large number of people within a community, pandemic spreads over multiple countries
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| what is an example of a eukaryote pathogens that infects humans? | show 🗑
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| Why are protists and bacteria grouped into different domains? | show 🗑
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| Why are protists considered to be a paraphyletic group? | show 🗑
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| show | They include some but not all descendants of their most recent common ancestor
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| Why might encouraging the growth (via nutrient fertilization) of photosynthetic protists in marine environments help reduce global warming? | show 🗑
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| show | The chloroplast only have three to four membranes
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| Which major eukaryotic lineages form the Bikonta, a monophyletic group characterized by two flagella as a synapomorphy? | show 🗑
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| According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the engulfed cell alive, rather than digesting it as food? | show 🗑
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| According to the endosymbiosis theory of the origin of eukaryotic cells, how did mitochondria originate? | show 🗑
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| show | Chloroplast
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| show | The nucleus was formed through in folding of the plasma membrane
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| What are some of the organelles or cellular structures that all protists share?What are some of the organelles or cellular structures that all protists share? | show 🗑
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| show | spatial separation of transcription and translation
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| What places in eukaryotic cell contain genomes? | show 🗑
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| show | Direct sequencing of environmental samples
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| show | Loss of chloroplast
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| show | Phagocytosis
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| What is the leading hypothesis on the origin of the nucleus? | show 🗑
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| Are all protists unicellular? | show 🗑
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| Transcriptional regulation in eukaryotes includes processes such as alternative splicing that are not observed in bacteria or archaea. What changes occurred in the eukaryotic cell to make alternative splicing possible? | show 🗑
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| show | Photosynthetic protists fix atmospheric carbon dioxide, decreasing atmospheric carbon dioxide levels
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| show | Direct sequencing of environmental samples
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| which traits do archaea and bacteria share | show 🗑
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| among protists what term describes feeding by engulfing then digesting prey? | show 🗑
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| what organisms are most numerous on earth? | show 🗑
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| Are all protists unicellular? | show 🗑
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| To establish a link between a specific bacterium and a skin disease, researchers have shown that the bacterium was present in sick persons but not in healthy individuals. They isolated the bacterium in a pure culture and demonstrated that experimental hea | show 🗑
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| show | Photosynthetic protists fix atmospheric carbon dioxide, decreasing atmospheric carbon dioxide levels
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| show |
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| which traits do archaea and bacteria share | show 🗑
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| prokaryotes are classifies as belonging to two different domains. What are the domains? | show 🗑
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| show | prokaryotes
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| what is the goal of bioremediation? | show 🗑
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| show | isolate bacterium from an infected sick animal and demonstrate that it is the same bacterium as the one used for infection
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| show | seeding
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| show | antibiotics
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| show | Gram-positive shows blue or purple stain. Gram-negative shows as pink or red
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| show | Autotrophs gain energy from inorganic sources. Heterotroph gain energy from other organisms
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| show | Genetic characteristics such as ribosomal RNA sequences
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| microbiologist use the gram stain to aid in identification of bacteria. What is the major difference between gram-positive and gram-negative bacteria? | show 🗑
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| among the bacteria, plantlike photosynthesis that releases oxygen (O2) occurs in? | show 🗑
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| biologist sometimes divide living organisms into two groups: autotrophs and heterotrophs, How do these two groups differ? | show 🗑
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| show |
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| Carl Woese and collaborators identified two major branches of prokaryotic evolution. What was the basis for dividing prokaryotes into two domains? | show 🗑
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| show |
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| you might be interested to know how many different types of bacteria live on the shower curtain in your bathroom. What is the most efficient method for finding out? | show 🗑
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| a prokaryote that obtains energy from light is a | show 🗑
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| show |
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| among the bacteria, plantlike photosynthesis that releases oxygen (O2) occurs in? | show 🗑
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| show |
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| show |
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| show |
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| show |
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| A water sample from a hot thermal vent contained a single-celled organism that had a cell wall but lacked a nucleus. What is its most likely classification? | show 🗑
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| Which of the following describes all existing bacteria? | show 🗑
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| show |
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