Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 9, Problem 34CTQ
What characteristics make yeasts a good model for learning about signaling in humans?
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Chapter 9 Solutions
Biology 2e
Ch. 9 - Figure 9.8 HER2 is a receptor tyrosine kinase. In...Ch. 9 - Figure 9.10 In certain cancers, the GTPase...Ch. 9 - Figure 9.17 Which of the following statements...Ch. 9 - Figure 9.18 What advantage might biofilm...Ch. 9 - What property prevents the ligands of cell-surface...Ch. 9 - The secretion of hormones by the pituitary gland...Ch. 9 - Why are ion channels necessary to transport ions...Ch. 9 - Endocrine signals are transmitted more slowly than...Ch. 9 - A scientist notices that when she adds a small,...Ch. 9 - Where do DAG and IP3 originate? They are formed by...
Ch. 9 - What property enables the residues of the amino...Ch. 9 - Histamine binds to the H1 G-protein-linked...Ch. 9 - A scientist observes a mutation in the...Ch. 9 - What is the function of a phosphatase? A...Ch. 9 - How does NF-kB induce gene expression? A small,...Ch. 9 - Apoptosis can occur in a cell when the cell is...Ch. 9 - What is the effect of an inhibitor binding an...Ch. 9 - How does PKC’s signaling role change in response...Ch. 9 - A scientist notices that a cancer cell line fails...Ch. 9 - Which type of molecule acts as a signaling...Ch. 9 - Quorum sensing is triggered to begin when...Ch. 9 - A doctor is researching new ways to treat biofilms...Ch. 9 - What is the difference between intracellular...Ch. 9 - How are the effects of paracrine signaling limited...Ch. 9 - What are the differences between internal...Ch. 9 - Cells grown in the laboratory are mixed with a dye...Ch. 9 - Insulin is a hormone that regulates blood sugar by...Ch. 9 - The same second messengers are used in many...Ch. 9 - What would happen if the intracellular domain of a...Ch. 9 - If a cell developed a mutation in its MAP2K1 gene...Ch. 9 - What is a possible result of a mutation in a...Ch. 9 - How does the extracellular matrix control the...Ch. 9 - A scientist notices that a cancer cell line shows...Ch. 9 - What characteristics make yeasts a good model for...Ch. 9 - Why is signaling in multicellular organisms more...Ch. 9 - Pseudomonas infections are very common in hospital...
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- The enzyme Ste11 participates in several distinct MAP kinase signaling pathways in the budding yeast S. cerevisiae. What is the substrate for Ste11 in the mating factor signaling pathway?arrow_forwardHow is the purpose of cell signaling different in unicellular organisms vs. multicellular organisms? Provide an example of each.arrow_forwardWhat is an explanation for the similarities between genes in yeasts,nematodes, and mammals that control apoptosis?arrow_forward
- What is the benefit of using second messangers and phosphorylation cascades during the transduction step of cell signaling?arrow_forwardWhich describes an enzymatic activity/biochemical function of importin-beta? facilitate release of nuclear proteins after transport through the nuclear pore complex interact with/bind to nuclear localization sequences INLSs) interact with/bind to importin-alpha hydrolyze GTP to GDP + Piarrow_forwardWhat are the two components that give their nameto the signal transduction system in prokaryotic cells?What is the function of each of the components?arrow_forward
- What key role does signal transduction play in the signaling process?arrow_forwardSpecific inhibitors of dyneins have yet to be discovered. When they are discovered, how would they most likely affect cells? Reduce retrograde transport of endosomes Decrease pseudopod formation in amoeboid cells Increase cell size Decrease contraction of skeletal musclearrow_forwardWhich type of molecule acts as a signaling molecule in yeasts? a. steroid b. autoinducer c. mating factor d. second messengerarrow_forward
- Eukaryotic signal transduction pathways often involve multiple proteins transmitting a signal from the cell surface to the nucleus. What advantage is gained through the use of multiple steps? Many signal transduction pathways are used in different cell types for entirely different purposes, leading to the transcription of different genes. How might different cell types be able to use a single signal transduction pathway to bring about such different results?arrow_forwardHow is an extracellular signal converted to an intracellular signal in signal transduction? Give a specific example.arrow_forwardWhat role does quorum sensing play in cell signaling and how does it impact microbial communities?arrow_forward
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