2019HSCMultiple choice
Q18
1 mark
Question
The diagram shows the effect of the hormone oxytocin on the uterus during the birth of a mammal.
Which of the following best identifies and explains the feedback loop demonstrated in the diagram?
| Feedback loop | Explanation | |
|---|---|---|
| A. | Negative | The production of oxytocin results in the production of more oxytocin. |
| B. | Positive | The production of oxytocin results in the production of more oxytocin. |
| C. | Negative | The production of oxytocin results in the detection of the contraction by receptors in the cervix. |
| D. | Positive | The production of oxytocin results in the detection of the contraction by receptors in the cervix. |

Syllabus alignment
Module 8 · Non-infectious Disease and Disorders
- HomeostasisConstruct and interpret negative feedback loops for temperature and glucose regulation.