1.1 intro to cells Flashcards
what is cell theory?
- all organism are made up of cells
- cells are the smallest unit of life capable of survival
- all cells come from pre-existing cells
can components of cells survive individually?
no they cannot
what experiment showe that cells come from pre-existing cells
Pasteurs experiment showed that only the flask open to the environment grew bacterial cultures
why is striated muscles fibre and exception to cell theory?
they contain multiple nuclei
why is giant algae an exception to cell theory?
because they can grow very large but are only once cell
why is aseptate fungi an exception to cell theory?
they are not compartmentalized and contain many nuclei
what are the 7 functions of life?
Metabolism
Response
Homeostasis
Growth
Reproduction
Excretion
Nutrition
why are viruses not living?
because they do not carry out the functions of life and they must use cells to reproduce
what a paramecium?
a unicellular organism from the kingdom Protista
What is chlorella?
single-celled organism with a large chloroplast inside?
