BIO P2 COGNITO
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6 Terms
1
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Describe what is meant by the term **excretion** (2)
the **removal** of **waste products** from **metabolic reactions, toxic materials and substances in excess of requirements**
2
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Explain the role of the sweat gland in a very warm environment (3)
* releases sweat
* sweat evaporates
* cooling and heat loss
* sweat evaporates
* cooling and heat loss
3
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Explain the role of blood vessels in a very warm environment (3)
* vasodilation
* more blood to skin surface
* cooling and heat loss
* more blood to skin surface
* cooling and heat loss
4
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Explain the role of insulin in homeostasis (2)
* lowers blood glucose
* converts blood glucose to glycogen stored in the liver
* converts blood glucose to glycogen stored in the liver
5
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Explain the role of ADH in homeostasis (3)
* control osmoregulation
* by the permeability of collecting duct
* reabsorbs water to form more concentrated urine
* by the permeability of collecting duct
* reabsorbs water to form more concentrated urine
6
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