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16 Cards in this Set
- Front
- Back
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describe the distribution of water in the body
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- abt 35% EC fluid
-abt 7% intravascular or blood -abt 28% IC or interstitial -abt 65% intracellular fluid |
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functions of water are divided into 2 broad areas...
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metabolism and temp regulation
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in the metabolism area of the function of water..the functions are..
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solvent
medium for transport diltent lubricant component of bio reactions |
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in the temp regulation section...
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specific heat
heat of vaporization thermal conductivity blood-mvt of substances lungs-large surface area |
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___= amt of energy/heat required to raise the temp of 1 g of a substance 1 degree centigrade
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specific heat
-water has high specific heat meaning can absorb a large quantity of heat with little change in temp |
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__= amt of energy/heat required to convert 1 g of liquid into vapor
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heat of vaporization
-sweating, panting-help rid the body of heat |
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__= water bathing the cells (IC water) provides an important medium for heat transfer; important to remove heat from deep regions of the body and move it towards the surface
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thermal conductivity
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sources of water..
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external- drinking water, feed sources
internal- water from oxidation of nutrients- metabolic water water from condensation reactions water associated with tissue catabolized |
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how does an animal lose water?
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loss at all times- urine
feces insensible (changes in phys state) conditions that increase loss- heat stress (sweating, panting) production ( lactation, egg laying, exercise) disease ( diarhhea, vomiting) |
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factors affecting requirements of water
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dietary
environemtnal phys state or production |
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generalization of expected consumption of water intake?
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abt 2.5g water/g DM intake
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Which of the following is not a function of water?
Choose one answer. a. solvent b. lubricant c. temperature regulation d. buffer e. component of biological reactions |
d
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The nutrient that produces the most metabolic water per g oxidized is:
Choose one answer. a. carbohydrate b. fat c. protein d. vitamins |
b
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The largest percentage of total body water is contained in what area?
Choose one answer. a. blood b. intercellular fluid c. intracellular fluid d. transcellular fluid |
c
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Which of the following would tend to increase an animals water requirement to the greatest extent?
Choose one answer. a. dry matter intake decreases and increased protein intake b. increased protein intake and increased salt intake c. lactations ends and increased salt intake d. lactation ends and dry matter intake decreases . |
b
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what adaptations does the camel have to overcome water needs?
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it has a hump and physiological adaptations to withstand dehydration and can lose water equivalents up to 25% of its body weight
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