cell theory Flashcards
recall the four fundamental tenets of cell theory
1
Q
original form of cell theory?
A
- all living things are composed of cells
- the cell is the basic functional unit of life
- cells arise only from preexisting cells
2
Q
what is the additional tenet that has been added to the cell theory?
A
cells garry genetic information in the form of DNA, this information is passed on from parent to daughter cell
3
Q
____________ are small structures that contain genetic material, but are unable to reproduce on their own
A
viruses
4
Q
virions can only replicate by invading other organisms and they may use _____________ as their genetic information
A
RNA
5
Q
are viruses considered living organisms?
A
no! their inability to reproduce on their own violates the 3rd and 4th tenet of the cell theory
6
Q
A
