Cells and microorganisms Flashcards
1
Q
What are the seven essential life processes?
A
- Movement
- Respiration
- Sensitivity
- Growth
- Reproduction
- Excretion
- Nutrition
2
Q
What does stimuli mean? Give an example.
A
Anything that can make a physiological response in an organism. An example: Pupil contracts from brightness
3
Q
What are the three principles that underpin cell theory
A
- all living organisms consist of one or more cells
- all cells come from pre-existing cells through cell division
- the cell is the fundamental building block of life
4
Q
Prokaryotic cells are…
A
simple cells (bacteria) that do not have membrane-bound organelles, as well as circular DNA
5
Q
Eukaryotic cells are…
A
complex cells that have membrane-bound organelles and nucleus, as well as linear DNA
