Term
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Definition
| The maintenace of a constant internal environment within living organisms irrespective of external conditions. |
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Term
| What is negative feedback used for? |
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Definition
| To return the body to the set point |
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Term
| What is negative feedback? |
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Definition
| A receptor detects any deviation from s set point. Information is sent to a control center which coordinates a response to return levels back to the set point. |
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Term
| What is positive feedback? |
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Definition
| An effector increases a change |
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Term
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Definition
| Stimulates the contraction of the uterus at the end of pregnancy. |
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Term
| What does the contractions by oxytocin do? |
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Definition
| Stimulate the production of more oxytocin, which increases the stimulus |
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Term
| How are more platelets attracted to the cut surface? |
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Definition
| They secrete signalling molecules |
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Term
| What is thermoregulation? |
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Definition
| Restoration of the core body temperature back to norm |
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Term
| Where is the control centre of thermoregulation? |
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Definition
| Hypothalamus in the brain |
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Term
| What happens to the amino acids that cannot be stored? |
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Definition
| Deaminated by the mammalian liver |
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Term
| How does deamination happen? |
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Definition
1. Amine group is removed
2. The removed amine group is converted to ammonia
3. Add CO2, less toxic urea is formed and transported in the blood plasma to kidneys
4. Urea is removed by the kidneys and excreted in the urine |
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