characteristics of life Flashcards
what are characteristics of life?
composed of cells, excrete waste, reproduces, has energy, grow and have a lifetime, and respond to stimuli 
What is the cell theory?
- all organisms are composed of one or more cells
-All cells come from pre-existing cells - The cell is the basic unit of life
what are the kingdoms of life?
Archaea eubacteria (prokaryotes)
Prostista fungi plantae animelia (eukaryotes)
What is an organelle?
A specialized structure within a cell
What is a cell?
The basic structural and functional unit of living organisms
What is tissue?
Group of similar cells combine to perform a common function 
What is an organ and organ system?
an organ is a combination of two or more different tissues perform a common function, and the system is a group of related organisms working together
What is the population?
A group of organisms of the same species, occupying a certain area and sharing a common gene pool
What is a community?
an as-semblance of species interacting with one another within the same environment
what is an ecosystem?
Biological community together with the associated abiotic environmental; characterized by a flow of energy and a cycling of inorganic nutrients 
What is a biosphere?
A zone of air, land, and water, at the surface of the Earth, in which living organisms are found
what is the photosynthesis equation?
6CO2 + 6H2O —> 6O2 + C6H12O6
carbon dioxide + water —> oxygen+ glucose
where does photosynthesis occur in a eukaryote? 
found in chloroplasts
where does photosynthesis occur in a prokaryote?
found in the cytoplasm 
What is cellular respiration?
metabolism of food molecules in cells that generate ATP (adenosine triphosphate)