Homeostatic systems comprise components such as sensors, effectors and variables - VCE - SSCE Biology - Question 16 - 2007 - Paper 1
Question 16
Homeostatic systems comprise components such as sensors, effectors and variables.
In such systems, the component being kept relatively constant is
A. the variable.
B... show full transcript
Worked Solution & Example Answer:Homeostatic systems comprise components such as sensors, effectors and variables - VCE - SSCE Biology - Question 16 - 2007 - Paper 1
Step 1
A. the variable.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
In a homeostatic system, the primary goal is to maintain balance within the internal environment of an organism. The component that is regulated to stay relatively constant is known as the variable, such as temperature, pH, or glucose levels. This variable is monitored and adjusted by the system to ensure stability and proper functioning.
Step 2
B. input to the sensor.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
While the input to the sensor is important for the detection of changes in the variable, it does not represent the component being kept constant. The sensor measures changes in the variable, allowing the system to respond.
Step 3
C. input to the effectors.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The input to the effectors is a response made to alter the variable; however, it is not the variable itself. Effectors work to bring about changes based on the information provided by the sensors.
Step 4
D. output from the effectors.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The output from the effectors is the action taken to affect the variable but is also not the component being regulated. This output is the system's response aimed at correcting deviations from the set point.
