Homeostasis Review

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy. It relies on the concentration gradient, moving substances from areas of higher concentration to areas of lower concentration.

Front

What molecule makes water acidic?

Back

Carbon Dioxide is the molecule that makes water acidic when it dissolves in water, forming carbonic acid.

Front

Define deforestation.

Back

Deforestation is the removal of trees faster than forests can replace themselves, leading to loss of biodiversity and disruption of ecosystems.

Front

What regulates what can enter and leave a cell?

Back

The Cell Membrane regulates what can enter and leave the cell, acting as a selective barrier.

Front

True or False: In active transport, energy is required.

Back

True. Active transport requires energy to move molecules against their concentration gradient.

Front

What is homeostasis?

Back

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

Front

What is the role of the cell membrane?

Back

The cell membrane protects the cell and controls the movement of substances in and out of the cell.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane using energy, typically against their concentration gradient.

Front

What is an example of passive transport?

Back

Diffusion of oxygen and carbon dioxide across the cell membrane is an example of passive transport.

Front

What happens during osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.