Homeostasis Flashcards
What is homeostasis?
Homeostasis is the process by which living organisms maintain a stable internal environment despite external changes.
True or False: Homeostasis only applies to temperature regulation.
False
Fill in the blank: Homeostasis involves the regulation of factors such as _____, pH, and glucose levels.
temperature
Which organ system is primarily responsible for maintaining homeostasis?
The endocrine system
What role do feedback mechanisms play in homeostasis?
Feedback mechanisms help regulate physiological processes by providing information about changes in the internal environment.
Multiple Choice: Which of the following is a type of feedback mechanism? A) Positive B) Negative C) Both A and B
C) Both A and B
What is the primary function of negative feedback in homeostasis?
To counteract changes and bring the system back to its set point.
True or False: Positive feedback loops enhance or amplify changes.
True
Fill in the blank: The _____ is the control center in the body that regulates temperature.
hypothalamus
What is the set point in homeostatic regulation?
The ideal value or range that the body aims to maintain for a particular variable.
Multiple Choice: Which of the following is an example of homeostasis? A) Sweating when hot B) Shivering when cold C) Both A and B
C) Both A and B
What is the significance of homeostasis in living organisms?
It allows organisms to function optimally and survive in varying environmental conditions.
Fill in the blank: Homeostatic imbalance can lead to _____ in the body.
disease
What is the role of receptors in homeostasis?
Receptors detect changes in the internal or external environment and send this information to the control center.
True or False: All organisms maintain homeostasis in the same way.
False
Multiple Choice: Which variable is NOT typically regulated by homeostasis? A) Blood pressure B) Oxygen levels C) Hair color
C) Hair color
What is the function of effectors in the homeostatic process?
Effectors carry out the response to restore balance to the internal environment.
Fill in the blank: The process of _____ helps maintain glucose levels during fasting.
gluconeogenesis
What is meant by dynamic equilibrium in homeostasis?
It refers to the constant adjustments the body makes to maintain stability while conditions change.
True or False: Homeostasis is important only for humans.
False
