HOMEOSTASIS
This process helps maintain a stable internal environment.
What is homeostasis?
The movement of molecules from high concentration to low concentration.
What is diffusion?
The organelle where most cellular respiration occurs.
What is the mitochondria?
This system transports oxygen, nutrients, and wastes throughout the body.
What is the circulatory system?
A statement that can be tested through an investigation.
What is a hypothesis?
When body temperature rises, this response helps cool the body.
What is sweating?
The movement of water across a selectively permeable membrane.
What is osmosis?
The two reactants needed for cellular respiration.
What are glucose and oxygen?
This system increases breathing rate when oxygen levels are low.
What is the respiratory system?
In the exercise experiment, this variable was measured in beats per minute.
What is heart rate (pulse rate)?
A feedback loop that reverses a change and restores balance.
What is negative feedback?
Diffusion continues until molecules reach this condition.
What is equilibrium?
The high-energy molecule produced by cellular respiration.
What is ATP?
When oxygen demand increases, this organ beats faster.
What is the heart?
Yeast produces this gas during cellular respiration.
What is carbon dioxide?
Body temperature regulation is an example of this type of feedback loop.
What is negative feedback?
If red blood cells are placed in a hypertonic solution, they will do this.
What is shrink?
When muscle cells run out of oxygen, they switch to this process.
What is lactic acid fermentation?
Tiny air sacs in the lungs where gas exchange occurs.
What are alveoli?
Evidence + scientific explanation used to support a claim.
What is reasoning in a CER?
Childbirth contractions increase as oxytocin is released. This is an example of this type of feedback.
What is positive feedback?
The process that allows oxygen and carbon dioxide to move between alveoli and blood vessels.
What is diffusion?
Athletes training at high altitudes increase production of these cells.
What are red blood cells?
The circulatory and respiratory systems work together to provide these two substances to cells
What are oxygen and nutrients?
Athletes train at high altitudes because extra red blood cells help deliver more of this molecule to tissues.
What is oxygen?