Homeostasis (2)

Biology

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Homeostasis (2)

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Organs involved in regulation of blood sugar levels

Blood sugar levels are regulated by the endocrine gland, circulatory system and digestive system

Organs involved in regulation of the partial pressure of carbon dioxide in the blood

The partial pressure of carbon dioxide in the blood is regulated by the respiratory system, circulatory system and nervous system

Organs involved in regulation of blood pressure

Blood pressure is regulated by the circulatory system and nervous system

Regulating body temperature (1)

Maintaining the body temperature at a fixed range is important so that cell metabolism reactions that are catalysed by enzymes occur at optimum levels

Regulating body temperature (2)

Temperatures that are too high will denature enzymes

Regulating body temperature (3)

Temperatures that are too low will slow down the metabolic activity of the cell, and prevent it from carrying out cell processes

Regulating body temperature (4)

Changes in body temperature are detected by the thermoreceptors in the skin and the hypothalamus

Regulation of body temperature by effectors through physical methods by erector muscles (1)

Erector muscles are less stimulated so they do not constrict and the fine hair will lower towards the skin surface

Regulation of body temperature by effectors through physical methods by erector muscles (2)

A thin layer of air is trapped between the fine hair

Regulation of body temperature by effectors through physical methods by erector muscles (3)

Heat can be released quickly

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Homeostasis (2)

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