Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 5, Problem 9TYU
FOCUS ON EVOLUTION
Paramecium and other unicellular eukaryotes that live in hypotonic environments have cell membranes that limit water uptake, while those living in isotonic environments have membranes that are more permeable to water. Describe what water regulation adaptations might have evolved in unicellular eukaryotes in hypertonic habitats such as the Great Salt Lake and in habitats with changing salt concentration.
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Chapter 5 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 5.1 - Plasma membrane proteins have carbohydrates...Ch. 5.1 - WHAT IF? How would the membrane lipid composition...Ch. 5.2 - What property allows O2 and CO2, to cross a lipid...Ch. 5.2 - Why is a transport protein needed to move many...Ch. 5.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 5.3 - How do you think a cell performing cellular...Ch. 5.3 - WHAT IF? If a Paramecium caudatum cell swims from...Ch. 5.4 - Sodium-potassium pumps help nerve cells establish...Ch. 5.4 - Prob. 2CCCh. 5.4 - MAKE CONNECTIONS Review the characteristics of the...
Ch. 5.5 - As a cell grows, its plasma membrane expands. Does...Ch. 5.5 - Prob. 2CCCh. 5.5 - MAKE CONNECTIONS In Concept 4.7, you learned that...Ch. 5.6 - During an epinephrine-initiated signal in liver...Ch. 5.6 - When a signal transduction pathway involves a...Ch. 5.6 - WHAT IF? How can a target cells response to a...Ch. 5 - In what way do the membranes of a eukaryotic cell...Ch. 5 - Which of the following factors would tend to...Ch. 5 - Phosphorylation cascades involving a series of...Ch. 5 - Lipid-soluble signaling molecules, such as...Ch. 5 - Which of the following processes includes all the...Ch. 5 - Based on Figure 5.17.which of these experimental...Ch. 5 - Prob. 7TYUCh. 5 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 5 - FOCUS ON EVOLUTION Paramecium and other...Ch. 5 - FOCUS ON INTERACTIONS A human pancreatic cell...Ch. 5 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
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- Which of the following membrane-crossing mechanisms requires energy? Active transport Facilitated diffusion Simple diffusion Passive transport Turgorarrow_forwardInvestigating 2 newly discovered unicellular species. Species 1 was isolated from the hot springs with an average water temperature of 92 degrees Celsius. Species 2 was isolated with an average water temperature of 8 degrees Celsius. You extract and measure the amount of desaturase protein from both species. State what you expect to observe with regards to desaturase levels in Species 2 compared to Species 1. (Refer to membrane fluidity and include an explanation of the differences in the structure of fatty acid chains).arrow_forwardIn which situation would passive transport not use a transport protein for entry into a cell? water flowing into a heypertonic environment an ion flowing into a nerve cell to create an electrical potential glucose being absorbed from the blood oxygen moving into a cell after oxygen deprivationarrow_forward
- You said that " However, if the salinity level is too extreme or the exposure is prolonged, it could lead to cellular damage and potentially death. In summary, while marine mussels are adapted to live in a hypertonic environment and are osmoregulators, exposure to extremely high salinity levels could still be harmful to them." Where are you finding this I can't seem to find this on the internet do you have a research paper to show this. Thank you for your help and timearrow_forwardWhich of the following is true of the flagellum in eukaryotes? It is a long, thin extracellular (exterior) structure, with a basal motor embedded in the cell membrane/cell wall. It is identical to the archaeal flagellum (archaellum) in composition and structure, but very different in composition and structure from bacterial flagella. It is a long, thin structure containing bundles of microtubules and motor proteins, all within the plasma membrane. Eukaryotic cells do not possess flagella.arrow_forwardDraw one elodea cell (freshwater plant) after being in saltwater. Label its choloroplast, cell wall, plasma membrane, nucleus, and central vacuole. Which ones are present? 1b) Based on this drawing, which structure is keeping the elodea from going through osmotic lysis in its habitat?arrow_forward
- Paramecia live mostly in freshwater and move with the use of structures called cilia. They utilize contractile vacuoles to expel water that enters the cell by osmosis. Euglena are unicellular organisms that use flagella for movement and chloroplasts for photosynthesis. They are found in freshwater and saltwater. Scientists have determined that Paramecia and Euglena are eukaryotes and not prokaryotes because they havearrow_forwardThe pre-cell (before the appearance of life) formed during Chemical Evolution has an outer membrane that is a phospholipid bilayer. Given the properties of the water in the prebiotic ocean. One would expect that H2O and ions would: A) move through the fatty acid layer of the phospholipid bilayer out of the pre-cell, B) be unable to move through the bilayer, C) move through the phosphate groups in the pre cell phospholipid bilayer and move into cell, D) dissolve the bilayer, E) transport proteins into the pre cell.arrow_forwardWhat Osmotic conditions would be favored by Plant and Animal cells? Why? Explain what is meant by the Fluid Mosaic Model of Membrane Structure. What are the various functions of membrane proteins? Explain the different forms of membrane transport: Passive, Facilitated, Active. Describe the bulk transport mechanisms of Endocytosis and Exocytosis.arrow_forward
- A cell is moved from its normal environment in a freshwater river and is suddenly placed into the ocean. What would be the effect of this change in environment on the cell? O 1) It would shrivel because it would lose water. O 2) It would shrivel because it is responding to a hypotonic environment. O 3) It would swell because it is experiencing a hypertonic environment. O 4) It would swell because it would gain water. O 5) Nothing would happen to the cell.arrow_forwardWhen an animal cell is placed on an isotonic solution, water molecules will A) Move out of the cell, resulting in shrinkage B) move into the cell until it bursts C) move into and out of the cell at equal rates D) stop moving need help for this, thanksarrow_forwardquick answers to mc pleasearrow_forward
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