NegFeedBackBasic/ControlOfHeaterToSummerHeat

POINT!

When room temperature is increased, negative feedback inhibits heater (function).

① Summer came. Room temperature is increased due to the summer heat. Heater increases room temperature. These are in the same direction (red).

② Since these are in the same direction, negative feedback inhibits (blue) the heater (function, such as by turning the power off). Because of this, the room temperature-increasing effect of the heater weakens, and the increased room temperature decreases (towards that before summer). Namely, the initial change (the increase in room temperature due to the summer heat) decreases (red upward unfilled arrow disappears).

This simply says, when room temperature is increased (during summer), heaters are not used. In the present "Step-By-Step Study of Life Sciences", let's call such control red→blue negative feedback.

Challenge Quiz

1.

Because of summer heat, 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 increased, negative feedback inhibits facilitates  正解! heater (function).