
Understanding Homeostasis and Feedback Mechanisms
Quiz
•
Science
•
12th Grade
•
Practice Problem
•
Hard
Tammy Reynolds
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is homeostasis?
The process of amplifying physiological changes
The maintenance of a constant internal environment within physiological tolerance limits
The tendency to disrupt internal equilibrium
The process of increasing blood glucose levels
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a negative feedback mechanism?
Blood clotting
Childbirth contractions
Regulation of blood glucose levels
Amplification of a stimulus
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What hormone is responsible for lowering blood glucose levels?
Glucagon
Adrenaline
Insulin
Thyroxin
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of diabetes is characterised by the destruction of beta cells?
Type 1 Diabetes
Type 2 Diabetes
Gestational Diabetes
Pre-diabetes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of melatonin in circadian rhythms?
To increase heart rate
To regulate sleep patterns
To control blood glucose levels
To stimulate digestion
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a cooling mechanism in thermoregulation?
Vasoconstriction
Shivering
Piloerection
Sweating
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers the release of adrenaline from the adrenal glands?
Low blood glucose levels
The amygdala sending stress signals to the hypothalamus
High melatonin levels
Low body temperature
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