Hormones: Maintaining Blood Homeostasis (AQA GCSE Biology Combined Science): Flashcards
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What is homeostasis?
What is homeostasis?
Maintenance of a constant internal environment
Why is homeostasis needed?
Why is homeostasis needed?
For enzyme action and all cell functions
Three things controlled by homeostasis in humans
Three things controlled by homeostasis in humans
Blood glucose concentration, body temperature, water levels
Types of communication in automatic control systems
Types of communication in automatic control systems
Nervous and hormonal communication
Role of receptors in homeostasis
Role of receptors in homeostasis
Detect stimuli (changes in the environment)
Role of coordination centres
Role of coordination centres
Process information received from receptors
Examples of coordination centres
Examples of coordination centres
Brain, spinal cord, and pancreas
Role of effectors in homeostasis
Role of effectors in homeostasis
Bring about responses to restore optimum conditions
Examples of effectors
Examples of effectors
Muscles or glands
What are stimuli?
What are stimuli?
Changes in the environment