Which statement is NOT TRUE regarding homeostasis?

Structure and Function of the Human Body

Homeostasis Quiz

Question 1 Which statement is NOT TRUE regarding homeostasis?

Select one:

a.A positive feedback loop reverses the initial stimulus to return it back into the set point range

b.Both negative and positive feedback loops are important to maintain homeostasis

c.Negative feedback loops are the most common type of feedback loops found in the human body

d.Homeostasis is dependent upon effectors that always amplify the initial change to maintain health

Question 2Feedback loops contain which of the following components?

Select one:

a.Set point, effectors, and receptors

b.Set point, metabolism, and effectors

c.Metabolism, effectors, and receptors

d.Metabolism, set point, and receptors

Question 3After a papercut, activated platelets release chemical signals to activate more platelets. In this example, the chemical signal is the _______ of a feedback loop.

Select one:

a.Set point

b.Effector

c.Receptor

d.Metabolism

Question 4Which of the following is an example of a positive feedback loop?

Select one:

a.Thyroid hormone signaling the hypothalamus to stop producing TRH

b.Uterine contractions to expel a fetus during labor

c.Increasing respirations to affect blood oxygen levels

d.Increasing heart rate to compensate for low cardiac output

Question 5Resting respiration rate is controlled by a positive feedback loop.

Select one:

True

False

Question 6A positive feedback loop reverses or opposes the initial stimulus to return it back into the set point range.

Select one:

True

False

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