Ch 4 Flashcards
colonial
Describes a living thing that is composed of a
group of similar cells living together, each cell being capable of living individually
tissue
A group of similar cells that work together to
perform a specific function
organ
A group of tissues that work together to perform a specific function
organ system
A group of organs that work together
to perform a life function
producer
An organism that manufactures its own
food (energy source), such as plants and algae
consumer
An organism that obtains food by eating other organisms
cellular respiration
The breakdown of a food source such as a sugar to release usable energy for a cell
ATP
(adenosine triphosphate) The molecule that serves as a usable form of energy for the cell
aerobic cellular respiration
The process by which cells
use oxygen to obtain usable energy from an energy source
anaerobic cellular respiration
The process by which cells obtain usable energy from an energy source without using oxygen
photosynthesis
The process producers use to form simple sugars from carbon dioxide and water, using light energy and chlorophyll
chlorophyll
The green pigment found in the chloroplasts of plant cells that captures the light energy necessary for photosynthesis