18 Questions
What process helps the kidneys expel more salt?
Chemiosmosis
In the human body, which molecule acts as the final electron acceptor in the electron transport chain?
Oxygen
Which process occurs in the mitochondria and produces ATP?
Citric acid cycle
What is the main function of ATP synthase in cellular respiration?
Synthesize ATP
Which process involves a feedback loop that helps control human body temperature?
Negative feedback mechanism
During which step of metabolism is Acetyl CoA produced?
Lactate Coz
What is the purpose of a feedback mechanism in the human body?
To maintain stability and regulate internal conditions
In the context of body temperature regulation, which type of feedback system is described as a 'negative feedback loop'?
A system where the output decreases the disturbance in temperature
Which best describes the role of a sensor in a feedback mechanism?
To detect changes or disturbances and signal the corrective response
Why is negative feedback important in maintaining homeostasis?
To counteract changes and regulate internal conditions
In the context of blood pressure regulation, which best describes a positive feedback mechanism?
A mechanism that increases blood pressure further when it rises
How does a negative feedback loop in temperature regulation differ from a positive feedback loop?
Negative feedback counteracts temperature changes, while positive feedback intensifies them.
What is the main purpose of negative feedback mechanisms in the human body?
To maintain stability despite physiological changes
In the context of body temperature regulation, what is the role of the effectors when the temperature rises above 37°C?
To initiate sweating to cool down the body
Which brain region plays a critical role in controlling body temperature through negative feedback mechanisms?
Hypothalamus
What is the function of positive feedback mechanisms in the human body?
To amplify responses and reinforce changes
How does the body respond to dehydration according to the text?
By increasing water intake
What happens when osmolality of plasma increases in the body?
Kidneys reduce water reabsorption
Test your knowledge on feedback mechanisms, including concepts such as inverting amplifier, blood clotting, and childbirth. Explore how systems respond to stimuli and maintain stability through feedback loops.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
