
Unit 4 Quiz
Authored by Justin T Jones
Science
11th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary goal of the physiological process known as homeostasis?
To increase the body's overall size and mass.
To generate energy for cellular respiration.
To maintain a relatively stable internal environment despite changes in the external environment.
To produce specialized cells for growth and repair.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main characteristic of a negative feedback loop?
It amplifies an initial stimulus to drive a process to completion.
It works to counteract an initial change to return a condition to its normal range.
It is the body's first response to any external threat or change.
It is the only type of feedback loop that involves hormones.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When you get too cold, your body shivers to generate heat. This is an example of a feedback loop that works to counteract the initial change and return the body to its normal temperature. What type of feedback loop is this?
Metabolic feedback loop
Positive feedback loop
Negative feedback loop
Internal feedback loop
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a physiological process that uses a positive feedback loop?
Blood sugar regulation
Childbirth contractions
Body temperature regulation
Blood pressure control
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following scenarios is an example of a negative feedback loop?
A baby's head pressing on the cervix during childbirth, which causes stronger contractions.
Your blood pressure increasing, which causes the heart rate to slow down.
The release of clotting factors after a cut, leading to more clotting factors being released.
A rise in body temperature causing shivering to generate more heat.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main characteristic of a positive feedback loop?
It works to bring a physiological condition back to its set point.
It slows down a process to prevent it from overshooting its target.
It amplifies an initial stimulus to drive a process to completion.
It is used to maintain the body's core temperature.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following describes a positive feedback loop?
The body's response is to counteract the initial change.
It is primarily used to maintain a constant internal temperature.
The body's response is to amplify the initial change.
It is the most common type of feedback loop in the human body.
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