NegFeedBackBasic/ControlOfHeaterToWinterChill

POINT!

When room temperature is decreased, negative feedback facilitates heater (function).

① Winter came. Room temperature is decreased due to the winter chill. Heater increases room temperature. These are in the opposite direction (blue).

② Since these are in the opposite direction, negative feedback facilitate (red) the heater (function, such as by turning the power on). Because of this control, the room temperature-increasing effect of the heater strengthens, and the decreased room temperature increases (towards that before winter). Namely, the initial change (the decrease in room temperature) decreases (blue downward unfilled arrow disappears).

This simply says, when room temperature is decreased (during winter), heaters are used. In the present "Step-By-Step Study of Life Sciences", let's call such control blue→red negative feedback.

Challenge Quiz

1.

Because of winter chill, room temperature is increased decreased  正解!, and a heater increases decreases  正解! room temperature. Since these are in the same direction opposite direction  正解!, negative feedback inhibits facilitates  正解! the heater (function). With this control, the initial change in room temperature disappears, namely the room temperature increases decreases  正解! (towards the baseline).

2.

When room temperature is decreased, negative feedback inhibits facilitates  正解! heater (function).