W1 what is a cell Flashcards
1
Q
what is endocytosis
A
transport into cells
2
Q
what are the 5 things all cells need to do
A
- reproduce
- respire
- harness energy
- grow
- respond to stimuli
3
Q
what is pinocytosis
A
cell drinking
4
Q
what is phagocytosis
A
cell eating
5
Q
approximately how many cell types in the human body
A
210
6
Q
what are cells
A
- small units bound by plasma membrane
- contain cytoplasm
- have genetic material in nucleoid/nucleus
- can synthesise ribosomes
7
Q
what is hyperplasia
A
- increase in size of organ due to change in stimuli
- not cancer as controlled
8
Q
what is hypertrophy
A
increase size of the cell but not number of cells
9
Q
how is hypertrophy associated with disease
A
- can lead to cardiomyopathy
- bigger atriums in the heart
10
Q
what was pivotal to cell development
A
microscopy
11
Q
what is the most common microscopy technique
A
fluorescence probes and specific antibodies
12
Q
what is a confocal microscope
A
a fluorescent microscope that gives 3D images
