Term
| Part of Brain that Monitors Temperature |
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Definition
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Term
| The pancreas monitors ... |
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Definition
| blood glucose concentration |
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Term
| Insulin is the hormone to... |
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Definition
| Reduce blood glucose levels |
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Term
| Insufficient insulin can cause ... |
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Definition
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Term
| Why should waste products be removed from the body? |
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Definition
| If they are not, they will increase in concentration and may interfere with chemical reactions or damage cells. |
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Term
| Example of waste product in body |
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Definition
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Term
| Another example of waste product in body |
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Definition
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Term
| How does the body produce and remove the waste product Carbon Dioxide? |
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Definition
| Produced as a result of aerobic respiration and removed via exhaling |
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Term
| How does the body produce and remove the waste product urea? |
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Definition
| Produced in the liver when excess amino acids are broken down. The kidneys remove it from the blood and make urine, which is stored in the bladder temporarily |
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Term
| The pancreas produces the hormone... |
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Definition
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Term
| Insulin works in lowering blood-glucose content because |
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Definition
| Insulin causes glucose to move from the blood into cells |
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Term
| Experiment by Frederick Banting and Charles Best took place in what year? |
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Definition
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Term
| Banting and Best took a part of what organ tissue for examinataion |
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Definition
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Term
| Banting and Best found that ... |
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Definition
| the pancreas had anti-diabetic properties |
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Term
| B&B first tested their findings on ___ before moving onto completing successful human trials in____ |
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Definition
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Term
| One treatment for diabetes (thought /consideration) |
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Definition
| Careful monitoring of food intake, with particular care taken over carbohydrates - which are digested into glucose. |
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Term
| One treatment for diabetes (action) |
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Definition
| Injecting insulin into the blood before meals. The extra insulin causes glucose to be taken up by the liver and other tissues. Cells get the glucose they need for respiration, and the blood glucose concentration stays normal. |
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Term
| Temperture receptors occur... (2 places) |
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Definition
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Term
| As well as water, what other ions are lost via sweating? |
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Definition
| Ions such as sodium ions and chloride ions are also lost when we sweat. |
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Term
| How does the body react to a increase in body temperature (2) |
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Definition
Sweat glands in the skin release more sweat. This evaporates, removing heat energy from the skin.
AND
Blood vessels leading to the skin capillaries become wider - they dilate - allowing more blood to flow through the skin, and more heat to be lost. |
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Term
| How does the body react to a decrease in body temperature? |
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Definition
Muscles contract rapidly - we shiver. These contractions need energy from respiration, and some of this is released as heat.
AND
Blood vessels leading to the skin capillaries become narrower - they constrict - letting less blood flow through the skin and conserving heat in the body. |
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Term
| How do 'goosepimples' help keep the body warmer? |
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Definition
| The hairs trap a layer of air above the skin, which helps to insulate the skin against heat loss. |
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Term
| Do capillaries move up and down inside of the skin? |
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Definition
| Capillaries do not move up and down inside the skin. Temperature is regulated by controlling the amount of blood which flows through the capillaries. |
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