Homeostasis

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Define homeostasis
The maintenance of an internal environment around an optimum value
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What should core temp not remain too low?
Too low would mean enzymes and substrate molecules have insufficient kinetic energy
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Why should core Temp not remain too high?
Proteins denature
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Why is it important that blood ph remains stable?
Maintains a stable rate of enzyme controlled reactions
An acidic pH means the H+ ions would interact with the hydrogen bonds in the tertiary structure of proteins
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Why is it important that blood glucose concentration remains stable?
To maintain a constant blood water potential to prevent osmosis lysis
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What is negative feedback?
Self-regulatory mechanisms return internal environment back to optimum when there are fluctuations
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What is positive feedback?
A fluctuation triggers changes that results in an even greater deviation from the normal level
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Other cards in this set

Card 2

Front

What should core temp not remain too low?

Back

Too low would mean enzymes and substrate molecules have insufficient kinetic energy

Card 3

Front

Why should core Temp not remain too high?

Back

Preview of the front of card 3

Card 4

Front

Why is it important that blood ph remains stable?

Back

Preview of the front of card 4

Card 5

Front

Why is it important that blood glucose concentration remains stable?

Back

Preview of the front of card 5
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