(a)
Introduction: Osmolarity refers to the number of particles in solution. It is a property of every solution, and a person can be compared with the osmolarities of different solutions as long as with the concentrations that are expressed in the same units.
(b)
To determine: Whether the cell volume of the body will decrease or increase or remain unchanged after sweat loss.
Introduction: The term tonicity is used to describe a solution and how that solution would affect the cell volume.
(c)
To determine: The volume and osmolarity of the cell after the sweat loss.
Introduction: Osmolarity describes the number of osmotically active particles (ions or molecules) per liter of solution. It is expressed in osmoles per liter or for very dilute solutions, milliosmoles per liter.
To determine: Whether the result for change in cell volume and osmolarity of the body matches with the above answers.
Introduction: Osmolarity and cell volume are interrelated. If the osmolarity of the cell increases, there is loss of water from the cell which decreases the cell volume.
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Chapter 5 Solutions
HUMAN PHYSIOLOGY: AN INTEG ACCESS C
- 2. Drug quantification from plasma is commonly performed by using techniques such as HPLC or LC/MS. However, these methods do have limitations, and investigators may choose to use a radiolabeled analog of a drug instead. Radioligands are molecules that contain radioactive isotopes, commonly 3H or 14C. This technique allows investigators to quantify drug concentration from radiation measurements. The following measurements were made in 250 g rats following oral administration of 18.2 µCi of a 14C-labeled drug of interest: Time (min) Plasma Radiation Levels (µCi/L) 0 0.0 2 9.7 4 19.2 7 25.3 9 37.8 12 39.6 14 45.8 17 48.8 20 52.0 25 56.4 30 59.2 35 60.1 40 61.1 45 62.1 50 62.8 60 63.1 70 62.1 80 60.1 90 57.3 100 55.5 110 53.7 120 52.2 150 48.0 180 45.0 240 39.0 Note that a µCi is a measure of the amount of radioactivity and hence is a measure of the amount of drug present. Given that the oral bioavailability of this drug is known to be essentially 100%, estimate the following from this…arrow_forwardThe current nutrition labelling regulation in Hong Kong requires food manufacturer to list E+7 information on the package of pre-packaged food products. Do you think that more nutrients, such as calcium and cholesterol, shall be included?arrow_forwardView History Bookmarks Window Help Quarter cements ents ons (17) YouTube Which amino acids would you expect to find marked on the alpha helix? canvas.ucsc.edu ucsc Complaint and Grievance Process - Academic Personnel pach orations | | | | | | | | | | | | | | | | 000000 000000000 | | | | | | | | | | | | | | | | | | | | | | 00000000 scope vious De 48 12.415 KATPM FEB 3 F1 F2 80 F3 a F4 F5 2 # 3 $ 85 % tv N A の Mon Feb 3 10:24 PM Lipid bilayer Submit Assignment Next > ZOOM < Å DII 8 བ བ F6 16 F7 F8 F9 F10 34 F11 F12 & * ( 6 7 8 9 0 + 11 WERTY U { 0 } P deletearrow_forward
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- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
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