Lecture 2: The Diversity of life Flashcards
1
Q
First 4 characteristics that define life:
A
cellular organisation
reproduction
metabolism
homeostasis
2
Q
Last 4 characteristics that define life:
A
hereditary
response to stimuli
growth and development
adaptation through evolution
3
Q
Scale of nature seen by unaided eye:
A
Human height
length of some nerve and muscle cells
chicken egg
frogs egg
4
Q
Scale of nature seen by light microscopy:
A
Human egg most plans and animal cells nucleus most bacteria mitochondrion
5
Q
Scale of nature seen by super-resolution microscopy:
A
smallest bacteria
viruses
ribosomes
6
Q
Scale of nature seen by an electron microscopy:
A
From plant and animal cells
proteins
lipids
7
Q
1 mm (μm) =
A
1000 μm
8
Q
1 μm (mm)
A
1/1000 mm
9
Q
1 μm (nm)
A
1000 nm
10
Q
Eukaryote cell range
A
10-100 μm
11
Q
Prokaryote cell size
A
less than 5 μm
12
Q
Mitochondria size
A
1-10 μm
13
Q
chloroplasts (size)
A
2-5μm
14
Q
membrane size
A
7-8 nm
15
Q
ribosomes (size)
A
25 nm
