Pronghorns are similar to antelopes and are native to North America. They live in open areas of grasslands. The photograph shows a pronghorn. Scientists measured the mass, resting metabolic rate and pulse rate of five mammals. The table shows the results. When a human exercises, the metabolic rate is increased and heat energy is released. Describe how the body temperature of a human is maintained at $$\(37^{\circ} \mathrm{C}\)$$ during exercise. (3) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................
Exam No：WBI1501-que-20241024 Year：2024 Question No：5(b)(ii)
Answer:
A description that includes three of the following points:
- thermoreceptors detect \{increase/ change\} in temperature / temperature above \(\left.37^{\circ} \mathrm{C}\right\}\) (1)
- impulses to \{thermoregulatory centre / hypothalamus / heat loss centre\} (1)
- (thermoregulatory centre) sends impulses \{via motor neurones / via sympathetic neurons / to correctly named effector\} (1)
- correct response (by effectors) to \{increase heat loss / decrease heat energy gain\} from the body (1)
- thermoreceptors detect \{increase/ change\} in temperature / temperature above \(\left.37^{\circ} \mathrm{C}\right\}\) (1)
- impulses to \{thermoregulatory centre / hypothalamus / heat loss centre\} (1)
- (thermoregulatory centre) sends impulses \{via motor neurones / via sympathetic neurons / to correctly named effector\} (1)
- correct response (by effectors) to \{increase heat loss / decrease heat energy gain\} from the body (1)
Knowledge points:
CH7 – Respiration, Muscles and the Internal Environment
Solution:
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