AQA spec link: 5.2.4
Relevant chapter: B12-Homeostasis in action. ( Note: This topic is for BIOLOGY only not for combined science students). AQA Biology third edition textbook-Page 182-183
*The new specification requires students to know the following;
Body temperature is monitored andcontrolled by the thermoregulatory centre in the brain. The thermoregulatory centre contains receptors sensitive to the temperature of the blood. The skin contains temperature receptorsand sends nervous impulses to the thermoregulatory centre.
If the body temperature is too high, blood vessels dilate (vasodilation) and sweat is produced from the sweat glands.Both these mechanisms cause a transfer of energy from the skin to the environment.
If the body temperature is too low, blood vessels constrict (vasoconstriction), sweating stops, and skeletal muscles contract (shiver).
Students should be able to explain how these mechanisms lower or raise body temperature in a given context.
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AQA Biology-SEPARATE topics PAPER 2 ONLY
Separate Sciences B10.4, B10.5 & B10.6 B11.9 & B11.10 B12.1, B12.2, B12.3, B12.4. B12.5 B13.4, B13.5 & B13.6 B14.5 & B14.6 B15.1, B15,2, B15.3 & B15.4
AQA new specification-B12-Homeostasis in action-Complete bundle
This bundle includes the B12 unit-Homeostasis in action. This is a separates/biology ONLY unit. All lessons have been done in accordance to the specification requirements. Videos have been embedded for ease of use (no internet connection required), and printer friendly resources attached. Search the individual lessons for more information on the lesson content. Save 33% by purchasing this bundle :) Lesson 1-Controlling body temperature Lesson 2-Removing waste products Lesson 3-The human kidney (taught this over 2 lessons, both included in this resource pack). Lesson 4-Dialysis-artificial kidney Lesson 5-Kidney transplants
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