The examples of negative feedback from the options provided are:

a. The use of sweating and shivering to bring body temperature back to the correct set point (37°C)
c. Regulation of blood glucose levels by production of insulin and glucagon.
d. Regulation of blood salinity by production of ADH to adjust level of water retention by kidneys.

Explanation:

Negative feedback mechanisms work to return the body to its normal state (homeostasis) when there are deviations.

a. Sweating and shivering are mechanisms the body uses to regulate temperature. When the body is too hot, it sweats to cool down. When it's too cold, it shivers to generate heat. Both actions aim to bring the body temperature back to the normal set point.

c. The regulation of blood glucose levels is another example of negative feedback. When blood glucose levels are high, the pancreas produces insulin to help cells absorb glucose and lower blood sugar levels. When blood glucose levels are low, the pancreas produces glucagon to stimulate the release of stored glucose, raising blood sugar levels.

d. The regulation of blood salinity (salt concentration) by the production of ADH (antidiuretic hormone) is also a negative feedback mechanism. When blood salinity is high, the pituitary gland releases ADH, which signals the kidneys to retain water, diluting the blood and reducing salinity. When blood salinity is low, less ADH is produced, and the kidneys excrete more water, increasing salinity.

Option b and e are examples of positive feedback mechanisms, not negative feedback. Positive feedback mechanisms amplify changes rather than reversing them. In option b, platelets attract more platelets to a wound to form a clot, which is an amplification of the initial response. In option e, the release of oxytocin stimulates uterine contractions during childbirth, which become stronger and more frequent - again, an amplification.

Question

The examples of negative feedback from the options provided are:

a. The use of sweating and shivering to bring body temperature back to the correct set point (37°C)
c. Regulation of blood glucose levels by production of insulin and glucagon.
d. Regulation of blood salinity by production of ADH to adjust level of water retention by kidneys.

Explanation:

Negative feedback mechanisms work to return the body to its normal state (homeostasis) when there are deviations.

a. Sweating and shivering are mechanisms the body uses to regulate temperature. When the body is too hot, it sweats to cool down. When it's too cold, it shivers to generate heat. Both actions aim to bring the body temperature back to the normal set point.

c. The regulation of blood glucose levels is another example of negative feedback. When blood glucose levels are high, the pancreas produces insulin to help cells absorb glucose and lower blood sugar levels. When blood glucose levels are low, the pancreas produces glucagon to stimulate the release of stored glucose, raising blood sugar levels.

d. The regulation of blood salinity (salt concentration) by the production of ADH (antidiuretic hormone) is also a negative feedback mechanism. When blood salinity is high, the pituitary gland releases ADH, which signals the kidneys to retain water, diluting the blood and reducing salinity. When blood salinity is low, less ADH is produced, and the kidneys excrete more water, increasing salinity.

Option b and e are examples of positive feedback mechanisms, not negative feedback. Positive feedback mechanisms amplify changes rather than reversing them. In option b, platelets attract more platelets to a wound to form a clot, which is an amplification of the initial response. In option e, the release of oxytocin stimulates uterine contractions during childbirth, which become stronger and more frequent - again, an amplification.

Knowee AI · Accepted Answer

The examples of negative feedback from the options provided are:

a. The use of sweating and shivering to bring body temperature back to the correct set point (37°C)
c. Regulation of blood glucose levels by production of insulin and glucagon.
d. Regulation of blood salinity by production of ADH to adjust level of water retention by kidneys.

Explanation:

Negative feedback mechanisms work to return the body to its normal state (homeostasis) when there are deviations.

a. Sweating and shivering are mechanisms the body uses to regulate temperature. When the body is too hot, it sweats to cool down. When it's too cold, it shivers to generate heat. Both actions aim to bring the body temperature back to the normal set point.

c. The regulation of blood glucose levels is another example of negative feedback. When blood glucose levels are high, the pancreas produces insulin to help cells absorb glucose and lower blood sugar levels. When blood glucose levels are low, the pancreas produces glucagon to stimulate the release of stored glucose, raising blood sugar levels.

d. The regulation of blood salinity (salt concentration) by the production of ADH (antidiuretic hormone) is also a negative feedback mechanism. When blood salinity is high, the pituitary gland releases ADH, which signals the kidneys to retain water, diluting the blood and reducing salinity. When blood salinity is low, less ADH is produced, and the kidneys excrete more water, increasing salinity.

Option b and e are examples of positive feedback mechanisms, not negative feedback. Positive feedback mechanisms amplify changes rather than reversing them. In option b, platelets attract more platelets to a wound to form a clot, which is an amplification of the initial response. In option e, the release of oxytocin stimulates uterine contractions during childbirth, which become stronger and more frequent - again, an amplification.

Question

Solution

Similar Questions

Upgrade your grade with Knowee