BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 5, Problem 10RQ
What problem is faced by organisms that live in fresh water?
- Their bodies tend to take in too much water
- They have no way of controlling their tonicity
- Only salt water poses problems for animals that live in it
- Their bodies tend to lose too much water to their environment.
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Why does adding salt to water decrease its freezing point?
Group of answer choices
Salt has a lower freezing point and will therefore increase the freezing point of water
Salt creates openings in the dense structure of cooling ice, which prevents the molecules from becoming so dense that they turn into ice
Sodium and chloride bond with the water molecules which disrupts the formation of ice crystals
Adding salt increases the energy available and movement of the water molecules which will slow down the freezing process
The relationship between water temperature and its oxygen solubility is that
when:
oxygen solubiity remains stable regardless of water temperature or salinity
water temperature is low, oxygen solubilityis high
water temperature is low, oxygen solubility is low
Chapter 5 Solutions
BIOLOGY 2E
Ch. 5 - Figure 5.12 A doctor injects a patient with what...Ch. 5 - Figure 5.16 Injecting a potassium solution into a...Ch. 5 - Figure 5.19 If the pH outside the cell decreases,...Ch. 5 - Which plasma membrane component can be either...Ch. 5 - Which characteristic of a phospholipid contributes...Ch. 5 - What is the primary function of carbohydrates...Ch. 5 - A scientist compares the plasma membrane...Ch. 5 - Water moves via osmosis. throughout the cytoplasm...Ch. 5 - The principal force driving movement in diffusion...Ch. 5 - What problem is faced by organisms that live in...
Ch. 5 - In which situation would passive transport not use...Ch. 5 - Active transport must function continuously...Ch. 5 - How does the sodium-potassium pump make the...Ch. 5 - What is the combination of an electrical gradient...Ch. 5 - What happens to the membrane of a vesicle after...Ch. 5 - Which transport mechanism can bring whole cells...Ch. 5 - In what important way does receptor-mediated...Ch. 5 - Many viruses enter host cells through receptor-...Ch. 5 - Which of the following organelles relies on...Ch. 5 - Imagine a cell can perform exocytosis, but only...Ch. 5 - Why is it advantageous for the cell membrane to be...Ch. 5 - Why do phospholipids rend to spontaneously orient...Ch. 5 - How can a cell use an extracellular peripheral...Ch. 5 - Discuss why the following affect the rate of...Ch. 5 - Why does water move through a membrane?Ch. 5 - Both of the regular intravenous solutions...Ch. 5 - Describe two ways that decreasing temperature...Ch. 5 - A cell develops a mutation in its potassium...Ch. 5 - Where does the cell get energy for active...Ch. 5 - How does the sodium-potassium pump contribute to...Ch. 5 - Glucose from digested food enters intestinal...Ch. 5 - The sodium/calcium exchanger (NCX) transports...Ch. 5 - Why is it important that there are different types...Ch. 5 - Why do ions have a difficult time getting through...
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- Figure 5.16 Injecting a potassium solution into a person’s blood is lethal. Capital punishment and euthanasia utilize this method in their subjects. Why do you think a potassium solution injection is lethal?arrow_forwardHow does increasing solute concentration affect water potential? (a) water potential becomes more positive (b) water potential becomes more negative (c) water potential becomes more positive under certain conditions and more negative under other conditions (d) water potential is not affected by solute concentration (e) water potential is always zero when solutes are dissolved in waterarrow_forwardWhy is water measure in pharmaceutical products essential? answer at your own words and answer should be to the point, not any irrelevant wordsarrow_forward
- please see attachedarrow_forwardIncreasing ventilation to remove accumulating CO2 in the blood will Increase the concentration of H+ Raise pH Shift the transport of CO2 to primarily the dissolved state Lower pHarrow_forwardCrenation can result from a change in which of the following? osmotic pressure hydrostatic pressure pH temperaturearrow_forward
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