Hormones: Maintaining Blood Homeostasis (AQA GCSE Biology Combined Science): Flashcards
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What is homeostasis?
What is homeostasis?
Keeping internal conditions stable and balanced
What are enzymes?
What are enzymes?
Proteins that speed up chemical reactions
Effect of high temperature on enzymes
Effect of high temperature on enzymes
Denatured (change shape and stop working)
Effect of wrong pH on enzymes
Effect of wrong pH on enzymes
Denatured and stop functioning
What 3 conditions does the body automatically control?
What 3 conditions does the body automatically control?
Body temperature, blood glucose, water levels
What is normal body temperature?
What is normal body temperature?
Around 37°C
What is the function of receptors?
What is the function of receptors?
Detect stimuli (changes in environment)
What are examples of coordination centres?
What are examples of coordination centres?
Brain, spinal cord, pancreas
What are effectors?
What are effectors?
Muscles or glands that carry out responses
What is negative feedback?
What is negative feedback?
Body reverses changes to maintain balance