C) a cell is undergoing aerobic respiration, because oxygen is being used. This leads you to hypothesize that, 44) Transcription in eukaryotes occurs in the. D) the most common cause of death due to infectious disease worldwide, although it can be controlled by reducing the population of the mosquito vector and prevented or treated with chloroquine. 17) The small size of prokaryotic cells limits their ability to respond to spatial gradients of a chemical. Without a start signal (codon) to indicate which nucleotide to start reading the three letter codons from, the frame could be shifted. The Fourteenth Edition and MasteringMicrobiology will provide a better teaching and learning experience—for you and your students. 6) DNA replication is bidirectional in prokaryotes with circular chromosomes.
Chapter 06 . B) One regulator will likely control the transcription of one section of the operon, whereas the other regulator will control the other component. 11) What are the primary regulator units that control endospore formation? Bloom’s Taxonomy: 5-6: Evaluating/Creating. 36) How does the proton motive force lead to production of ATP? Separation of sewage from water used for washing, swimming, and drinking would disrupt the cycle and prevent the exposure of humans to the miracidia and the reinfection of snails from urine and feces.
39) A bacterium running low on NADPH could ________ to generate more of this coenzyme.
B) ethanol or lactate; ATP is a waste product. 8) In a given chemical reaction, if the free energy of formation is known for all of the reactants and each of the products, the change in free energy can be calculated for the reaction. A) required to transform all reactants into their reactive state. 7) Explain the function of the helicases and why they are necessary. 17) Speculate why the half-life of mRNA is short, while the half-lives of rRNA and tRNA are long. These two factors restrict malaria to tropical and subtropical climates where significant human populations live next to or create standing water for the Anopheles mosquito to survive and multiply in. 30) Which intermediate compound(s) in the citric acid cycle is/are often used for biosynthetic pathways as well as carbon catabolism? 7) Many fungi produce ________ that can cause significant disease. Contact your Pearson rep for access information and instructions if you donât have a Mastering account. What is this piece of DNA and how is it related to the other genetic elements found in prokaryotic cells? Water should be filtered and disinfected with iodine or chlorine OR should be filtered and boiled. Another issue is that the universal genetic code does have exceptions. 4) Prior to DNA replication, both strands of the chromosome are methylated on the ________ residue of the sequence-GATC-. 16) Explain how Escherichia coli can grow with a doubling time of 20 minutes when chromosome replication takes 40 minutes. In the example of chemotaxis, an attractant or repellantʹs presence results in a change in activity of pre-existing flagella. A) The inducer combines with the repressor and activates the pathway. 40) Which of the following is NOT a function of DnaA in Caulobacter? Students benefit from self-paced tutorials that feature personalized wrong-answer feedback and hints that emulate the office-hour experience and help keep students on track. What precautions should you take before drinking the water and why? 3) PopZ plays a critical role in localizing proteins to the cell poles.
Conversely, CtrA-P represses the synthesis of the protein CcrA and so inhibits the initiation of DNA replication in swarmer cells by binding to and blocking the origin of replication. B) less ATP is consumed during the first stage of aerobic catabolism.
The test bank is a guidebook-manual for testing and examinations. 23) Differential gene expression occurs in each of the following bacterium EXCEPT. 10) A bacterium that lacks the mreB gene will have a ________ shape. D) The strong gradient from very high to low nutrient bioavailability induces production of the blue metabolite. A high activity of the enzyme adenylate cyclase which makes cAMP is suggestive of catabolite repression. When a large inoculum is transferred to a nutrient rich agar plate, it also appears blue. C) the strands of DNA are parallel and are copied in the same direction simultaneously. Inside the snail, the miracidia transform in cercaria that are released into the environment. B) endergonic and requires the input of energy. 18) Speculate on why it can be problematic to copy and express genes from Bacteria into Eukarya. 29) The rising of bread dough is the result of. D) Translocation of three to four protons drives the F0component of ATPase which in turn phosphorylates one ADP into ATP. B) function to transfer the correct amino acids to the ribosome during translation.
It holds plenty of questions with their appropriate answers related to an academic textbook. What is the most likely function of the DNA sequence that you changed? C) both OH-and H+accumulate on the inside of the membrane. Answer: Once an organism has successfully responded to a stimulus, it must stop responding and reset the sensory system until a further signal is received.
Answer: The RNA polymerase holoenzyme initiates transcription without the need for a primer.
11) Explain the difference between an intrinsic terminator and a Rho-dependent termination site. C) contain codons that bind to ribosomes during translation. 37) A mutation in the gene encoding the lactose repressor (lacI) that prevents lactose from binding to the LacI protein would result in. A) It is a hydrophobic alcohol that transports peptidoglycan precursors across the cytoplasmic membrane. B) elevated levels of transcripts for maltose and sucrose catabolism, C) relatively low intracellular cyclic AMP levels, D) RNA polymerase bound to biosynthetic promoter sequences. 24) When environmental levels of amino acids become limited, synthesis of mRNA, rRNA, and tRNA increases immediately. 15) The major trigger of endospore formation in Bacillus is nutrient deprivation. C) nucleotide. learn more. 9) All fungal infections can broadly be termed, 11) Giardia cysts are unusual because they are capable of withstanding, 12) The microorganism Cryptosporidium parvum is a, 13) Cryptosporidium parvum oocysts are highly resistant to, 14) The treatment regimen for people with normal immunity recovering from cryptosporidiosis includes, 15) An untreated Entamoeba histolytica infection can invade the, 16) A common method used in the diagnosis of giardiasis is detection of Giardia. In cells where the gene is expressed, and the tagged FtsZ proteins are produced, GFP is produced at the same time. 3) DNA-binding proteins interact predominantly within which portion of a double-stranded DNA helix? With a wide range of interactive, engaging, and assignable activities, students are encouraged to actively learn and retain tough course concepts.
A researcher noticed that this never happens when very small colonies are grown on low nutrient agar plates, however.