Introductory lecture Flashcards
1
Q
Leeuwenhoek
A
examined pondwater teeming with ‘animalcules’, also observed bacteria
2
Q
schweiden and schwann
A
all organisms composed 1 or more cells
cell is the structural unit of life
but thought cells could arise from non-cellular materials
3
Q
virchow
A
cells can arise from division of pre-existing cell
4
Q
where do cellular processes take place in bacteria
A
in the cytoplasm
5
Q
where can you find dna in eukaryotes
A
nucleus, mitochondria, chloroplast
6
Q
function of cells
A
possess a genetic program capable of producing more of themselves acquire and utilise energy carry out chemical reactions engage in lots of mechanical activities respond to stimuli- make changes dependent on conditions
7
Q
what happens with cancer
A
changes in cell signalling pathways
cells divide uncontrollably
8
Q
1mm in m, um, nm
A
10^3 m
10^6 um
10^9 nm
