Negative Feedback (Grade 12 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What household device does negative feedback resemble in maintaining body balance?
What household device does negative feedback resemble in maintaining body balance?
A thermostat
What is the role of receptors in negative feedback?
What is the role of receptors in negative feedback?
Detect changes in internal environment
What do effectors do in the negative feedback process?
What do effectors do in the negative feedback process?
Make changes to restore balance
What is homeostasis?
What is homeostasis?
Internal balance
What happens immediately after receptors detect an imbalance?
What happens immediately after receptors detect an imbalance?
Signals sent to control centre
Which variables must homeostasis regulate?
Which variables must homeostasis regulate?
Water, salt, glucose, temperature
Which organs act as effectors for water regulation?
Which organs act as effectors for water regulation?
Kidneys and skin
What is the primary effector for controlling salt levels in blood?
What is the primary effector for controlling salt levels in blood?
Kidneys
Why must the internal environment remain stable?
Why must the internal environment remain stable?
For cells to function properly
How does negative feedback respond to increases?
How does negative feedback respond to increases?
Works to decrease them