Maintaining Homeostasis Practice

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

Why is energy important for maintaining homeostasis?

Back

Energy is required for various cellular processes, including active transport, which helps maintain the balance of substances inside and outside the cell.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient (from low to high concentration) using energy.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically from high to low concentration.

Front

What happens to a freshwater plant in saltwater?

Back

The cells of the freshwater plant will shrink because water will move out of them due to osmosis.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the role of toxins in cells?

Back

Toxins can disrupt cellular processes, so it is important to rid the cell of toxins to maintain homeostasis.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of substances during diffusion and active transport.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is the difference between diffusion and active transport?

Back

Diffusion is the movement of molecules from high to low concentration without energy, while active transport moves molecules from low to high concentration using energy.