Cell Transport and Energy

Front

What is exocytosis?

Back

Exocytosis is the process by which large molecules are transported out of the cell using energy from ATP.

Front

What is the role of ATP in cellular processes?

Back

ATP (adenosine triphosphate) is the energy currency of the cell, providing energy for various cellular activities, including active transport.

Front

What is passive transport?

Back

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

Front

What is active transport?

Back

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

Front

What are chloroplasts?

Back

Chloroplasts are organelles found in plant cells that conduct photosynthesis, converting light energy into chemical energy.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the cell membrane?

Back

The cell membrane is a protective barrier that surrounds the cell, controlling what enters and leaves the cell.

Front

What is the difference between diffusion and osmosis?

Back

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

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others, maintaining the cell's internal environment.

Front

What is the function of proteins in active transport?

Back

Proteins in active transport act as pumps that help move substances across the cell membrane against their concentration gradient.