Zadanie 4a
Outline functions of thyroxin in humans.
The temperature-control feedback pathway
Relate thermal sensing, hypothalamic integration, hormonal influences and effectors to maintenance of body temperature.
Tę umiejętność sprawdza 8 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 8 Otwórz w wyszukiwarce z filtrami
Zadanie 21
The graph models exercise interrupted by rest at minutes30–50 and80–100. Which response can contribute to the temperature falls during rest? A. Contraction of skeletal muscles in shivering B. Increased blood flow through vessels near the skin surface C.…
- Materiał graficzny
Zadanie 8
Animals must function under changing environmental temperatures. (a) Explain mechanisms of human thermoregulation. (b) Explain how temperature affects enzyme activity. (c) Distinguish the thermal properties of air and water in relation to animal habitats. One…
Zadanie 21
After body temperature rises above the regulated range, which response and feedback classification are appropriate? A. Negative feedback: increased skin blood flow promotes heat loss B. Positive feedback: shivering reduces heat production C. Negative feedback:…
Zadanie 30
In a simplified physiology case, a person has reduced metabolic heat production, persistent cold intolerance and unusually low energy expenditure. Reduced secretion of which hormone is most consistent with this pattern? A. Epinephrine B. Thyroxin C. Insulin D.…
Zadanie 6
Sensory information from the mouth helps coordinate responses while eating hot food. Outline one type of receptor that provides information in this situation.
Zadanie 6
(a) Explain how temperature influences enzyme activity. (b) Outline how the thyroid gland contributes to regulation of human body temperature. (c) Describe how human activities contribute to a rise in mean surface air temperature.
Zadanie 29
Body temperature varies within a regulated range, as in this model recording. Which hormone can influence temperature by altering metabolic heat production? A. Glucagon as the principal timing signal for sleep B. Thyroxin C. Leptin as the direct trigger of…
- Materiał graficzny