Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 41, Problem 8RQ
The osmolarity of body fluids is maintained at ___________ .
- 100 mOsm
- 300 mOsm
- 1000 mOsm
- it is not constantly maintained
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The osmolarity of body fluids is maintained at ________. a. 100 mOsm b. 300 mOsm c. 1000 mOsm d. it is not constantly maintained
In which system is osmolarity significant?
endocrine system
immune system
nervous system
urinary system
If a person was severely dehydrated and the osmolarity of their blood and tissue fluids was at 500 mOsm/L while their intracellular osmolarity was 300 mOsm/L; explain what would happen via osmosis.
Chapter 41 Solutions
Biology 2e
Ch. 41 - Figure 41.5 Which of the following statements...Ch. 41 - Figure 41.6 Which of the following statements...Ch. 41 - Figure 41.8 Loop diuretics are drugs sometimes...Ch. 41 - When a dehydrated human patient needs to be given...Ch. 41 - The sodium ion is at the highest concentration in:...Ch. 41 - Cells in a hypertonic solution tend to: shrink due...Ch. 41 - The macula densa is/are: present in the renal...Ch. 41 - The osmolarity of body fluids is maintained at...Ch. 41 - The gland located at the top of the kidney is the...Ch. 41 - Active transport of K+ in Malpighian tubules...
Ch. 41 - Contractile vacuoles in microorganisms:...Ch. 41 - Flame cells are primitive excretory organs found...Ch. 41 - BUN is. blood urea nitrogen blood uric acid...Ch. 41 - Human beings accumulate ____before____ excreting...Ch. 41 - Renin is made by. granular cells of the...Ch. 41 - Patients with Addison's disease retain water...Ch. 41 - Which hormone elicits the 'fight or flight”...Ch. 41 - Why is excretion important in order to achieve...Ch. 41 - Why do electrolyte ions move across membranes by...Ch. 41 - Why are the loop of Henle and vasa recta important...Ch. 41 - Describe the structure of the kidney.Ch. 41 - Why might specialized organs have evolved for...Ch. 41 - Explain two different excretory systems other than...Ch. 41 - In terms of evolution, why might the urea cycle...Ch. 41 - Compare and contrast the formation of urea and...Ch. 41 - Describe how hormones regulate blood pressure,...Ch. 41 - How does the renin-angiotensin-aldosterone...
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- Solutes tend to diffuse from a region where they are _______ more/less concentrated to an adjacent region where they are ________ more/less concentrated.arrow_forwardThe major cation in extracellular fluid is ________.a. sodiumb. potassiumc. chlorided. bicarbonatearrow_forwardWhen a person becomes dehydrated, the amount of water in extracellular fluids such as blood decreases, causing the solute concentration of these fluids to increase. State whether osmosis results in water entering or leaving cells.arrow_forward
- Osmolarity is the measure of __________concentration of _________ particles. total; water partial; water total; solute partial; solute none of the abovearrow_forwardThe major anion in extracellular fluid is ________.a. sodiumb. potassiumc. chlorided. bicarbonatearrow_forwardHow is osmolality different from molarity and what will be the osmolality of the body fluids.? How fluids may be shifted from the extracellular compartment into the intracellular compartment.arrow_forward
- A cell with intracellular osmolarity of 280 mOsm/L is placed into three different containers varying in osmolarity. Which solution from the list would cause the cell to lose water and shrink? 280 mOsm/L 240 mOsm/L 340 mOsm/L NONE of the abovearrow_forwardThe fluid regulation of the body is through___________.arrow_forwardwhich of the following is a hypertonic solution (relative to body fluids)? Note: this can occur during a state of dehydration- 500mOsm, 100mOsm, or 300mOsm.arrow_forward
- how the fluid balancing maintain fluid homeostasisarrow_forwardWater intoxication is caused by Group of answer choices hypertonic intracellular fluid. hypotonic intracellular fluid. hypotonic extracellular fluid. isotonic intracellular fluid. hypertonic extracellular fluid.arrow_forwardOsmometric neurons fire ________ when you don’t have a lot of water in your body compared to when you are well hydrated. More Less The same amountarrow_forward
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