Cells 2nd Vocab Flashcards
Metabolism
The sum of all the building-up and breaking-down activities in the cell.
Respiration
The process in which simple food substances are broken down and energy is released. Takes place in the mitochondria.
Fermentation
Anaerobic respiration. Food is broken down and energy is released without the use of oxygen.
Diffusion
The process by which molecules of a substance move from an area of high or low concentration of that substances.
Osmosis
The diffusion of water into or out of the cell.
Active transport
Energy requiring process that helps “carry” a substance across the cell membrane.
Photosynthesis
Process by which organisms use energy from sunlight to make their own food. Takes place in the chloroplast.