Feedback - AP Biology
Card 1 of 30
Which feedback type is primarily used in the endocrine system to regulate hormones?
Which feedback type is primarily used in the endocrine system to regulate hormones?
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Negative feedback. Hormone levels inhibit their own further release.
Negative feedback. Hormone levels inhibit their own further release.
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Identify the feedback type: Maintenance of blood pH through bicarbonate buffer system.
Identify the feedback type: Maintenance of blood pH through bicarbonate buffer system.
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Negative feedback. Buffers oppose pH changes to maintain acid-base balance.
Negative feedback. Buffers oppose pH changes to maintain acid-base balance.
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Which hormone is involved in positive feedback during childbirth?
Which hormone is involved in positive feedback during childbirth?
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Oxytocin. It stimulates stronger uterine contractions during labor.
Oxytocin. It stimulates stronger uterine contractions during labor.
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Identify the feedback type: Increased body temperature triggers cooling mechanisms.
Identify the feedback type: Increased body temperature triggers cooling mechanisms.
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Negative feedback. Heat activates cooling mechanisms like sweating.
Negative feedback. Heat activates cooling mechanisms like sweating.
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Identify the feedback mechanism: Sweating to reduce body temperature.
Identify the feedback mechanism: Sweating to reduce body temperature.
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Negative feedback. Evaporative cooling opposes temperature increase.
Negative feedback. Evaporative cooling opposes temperature increase.
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Identify the feedback type: Blood vessels constrict when cold to conserve heat.
Identify the feedback type: Blood vessels constrict when cold to conserve heat.
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Negative feedback. Vasoconstriction reduces heat loss from the body surface.
Negative feedback. Vasoconstriction reduces heat loss from the body surface.
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What feedback type is used in the regulation of blood pressure?
What feedback type is used in the regulation of blood pressure?
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Negative feedback. Baroreceptors detect changes and trigger opposing responses.
Negative feedback. Baroreceptors detect changes and trigger opposing responses.
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Identify the feedback type: Maintenance of blood pH through bicarbonate buffer system.
Identify the feedback type: Maintenance of blood pH through bicarbonate buffer system.
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Negative feedback. Buffers oppose pH changes to maintain acid-base balance.
Negative feedback. Buffers oppose pH changes to maintain acid-base balance.
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What type of feedback mechanism is involved in blood glucose regulation?
What type of feedback mechanism is involved in blood glucose regulation?
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Negative feedback. Insulin and glucagon oppose each other to maintain balance.
Negative feedback. Insulin and glucagon oppose each other to maintain balance.
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What feedback type occurs during an immune response to infection?
What feedback type occurs during an immune response to infection?
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Positive feedback. Inflammation amplifies to recruit more immune cells.
Positive feedback. Inflammation amplifies to recruit more immune cells.
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What is the primary effect of positive feedback on system stability?
What is the primary effect of positive feedback on system stability?
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It destabilizes the system by amplifying changes. It accelerates change until completion or external stop.
It destabilizes the system by amplifying changes. It accelerates change until completion or external stop.
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Identify the feedback mechanism: Withdrawal reflex from a hot surface.
Identify the feedback mechanism: Withdrawal reflex from a hot surface.
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Negative feedback. Pain signals trigger immediate protective muscle response.
Negative feedback. Pain signals trigger immediate protective muscle response.
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Identify the feedback type: Contractions increase during childbirth due to hormone release.
Identify the feedback type: Contractions increase during childbirth due to hormone release.
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Positive feedback. Oxytocin release increases as contractions strengthen.
Positive feedback. Oxytocin release increases as contractions strengthen.
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Identify the feedback type: Increased blood CO2 levels trigger breathing rate increase.
Identify the feedback type: Increased blood CO2 levels trigger breathing rate increase.
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Negative feedback. Higher CO2 stimulates breathing to restore normal levels.
Negative feedback. Higher CO2 stimulates breathing to restore normal levels.
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What feedback type is involved in the regulation of calcium levels in the blood?
What feedback type is involved in the regulation of calcium levels in the blood?
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Negative feedback. PTH and calcitonin maintain proper calcium balance.
Negative feedback. PTH and calcitonin maintain proper calcium balance.
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Identify the feedback type: Regulation of blood osmolarity by ADH.
Identify the feedback type: Regulation of blood osmolarity by ADH.
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Negative feedback. ADH release responds to blood concentration changes.
Negative feedback. ADH release responds to blood concentration changes.
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What is the feedback type: Inflammatory response amplifies to fight infection?
What is the feedback type: Inflammatory response amplifies to fight infection?
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Positive feedback. More immune cells recruit additional inflammatory responses.
Positive feedback. More immune cells recruit additional inflammatory responses.
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What feedback type helps to restore a system to its set point after a disturbance?
What feedback type helps to restore a system to its set point after a disturbance?
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Negative feedback. The response opposes the deviation from normal.
Negative feedback. The response opposes the deviation from normal.
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What feedback type is involved in the process of labor and delivery?
What feedback type is involved in the process of labor and delivery?
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Positive feedback. Contractions intensify through oxytocin release cycles.
Positive feedback. Contractions intensify through oxytocin release cycles.
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State the feedback type: Amplification of a signal leads to increased response.
State the feedback type: Amplification of a signal leads to increased response.
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Positive feedback. The response enhances rather than opposes the stimulus.
Positive feedback. The response enhances rather than opposes the stimulus.
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State the feedback type: Blood clotting involves a cascade of reactions.
State the feedback type: Blood clotting involves a cascade of reactions.
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Positive feedback. Each clotting factor activates the next in sequence.
Positive feedback. Each clotting factor activates the next in sequence.
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Which feedback type is more likely to lead to a runaway process?
Which feedback type is more likely to lead to a runaway process?
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Positive feedback. It continues accelerating until external factors intervene.
Positive feedback. It continues accelerating until external factors intervene.
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What term describes the process where feedback reduces the deviation from a set point?
What term describes the process where feedback reduces the deviation from a set point?
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Negative feedback. The response opposes the initial change from normal.
Negative feedback. The response opposes the initial change from normal.
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Which feedback type acts as a self-regulating mechanism?
Which feedback type acts as a self-regulating mechanism?
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Negative feedback. It automatically opposes deviations without external control.
Negative feedback. It automatically opposes deviations without external control.
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What feedback type occurs when a system moves away from equilibrium?
What feedback type occurs when a system moves away from equilibrium?
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Positive feedback. The response amplifies rather than stabilizes the change.
Positive feedback. The response amplifies rather than stabilizes the change.
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Identify an example of negative feedback in human physiology.
Identify an example of negative feedback in human physiology.
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Body temperature regulation via thermoregulation. Heat production/loss mechanisms maintain constant core temperature.
Body temperature regulation via thermoregulation. Heat production/loss mechanisms maintain constant core temperature.
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What feedback type is involved in lactation after childbirth?
What feedback type is involved in lactation after childbirth?
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Positive feedback. Suckling stimulates more milk production and release.
Positive feedback. Suckling stimulates more milk production and release.
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Which feedback mechanism is primarily responsible for maintaining homeostasis?
Which feedback mechanism is primarily responsible for maintaining homeostasis?
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Negative feedback. It counteracts changes to maintain stable internal conditions.
Negative feedback. It counteracts changes to maintain stable internal conditions.
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What feedback type involves a stimulus that initiates reactions that reduce the stimulus?
What feedback type involves a stimulus that initiates reactions that reduce the stimulus?
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Negative feedback. The response counteracts and reduces the original stimulus.
Negative feedback. The response counteracts and reduces the original stimulus.
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What is the definition of negative feedback in biological systems?
What is the definition of negative feedback in biological systems?
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Negative feedback reduces output to stabilize the system. This maintains homeostasis by counteracting deviations.
Negative feedback reduces output to stabilize the system. This maintains homeostasis by counteracting deviations.
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