Tutorial

iGCSE Biology: Understand Homeostasis

Learn about homeostasis for iGCSE Biology, including negative feedback, blood glucose regulation with insulin and glucagon, and body temperature control.
A dramatic, close-up photograph of a human hand delicately balancing a single, perfect droplet of water on a fingertip. In the softly blurred background, intricate, subtle patterns resembling neural networks or vascular systems are faintly visible, emphasizing the body's precise internal regulation and equilibrium.

Management & Tools

Deck Contents

33 Cards
Lesson#1
In this deck, we'll explore homeostasis, the vital process your body uses to keep its internal environment stable and constant. We'll cover how it controls your blood sugar and body temperature using a clever system called negative feedback.
Lesson#2
Homeostasis is defined as the maintenance of a constant internal environment. Think of it like your body's internal control centre, constantly making adjustments to keep factors like temperature and glucose concentration within a narrow, safe range.
Quiz#3
What is the biological term for the maintenance of a constant internal environment?

homeostasis

Lesson#4
The main way your body achieves homeostasis is through negative feedback. This is a control system where, if a condition deviates from its normal level, or 'set point', the body triggers a response to reverse the change and bring it back to that set point.
Quiz#5
What is the name of the control mechanism that reverses a change to bring a condition back to its set point?

negative feedback

Quiz#6
In a negative feedback system, what is the term for the ideal level that the system aims to maintain?

set point

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