Biology 11, Chapter 1Cell Structure And Functions - 12

Biology 11, Chapter 1
Cell Structure And Functions - 12

1. The resolution of an electron microscope is about?

a) 0.5 nm
b) 0.5 mm
c) 0.05 nm
d) 0.5 cm

2. The resolution of an electron microscope is about ______ in practice, compared with _______ for light microscope?

a) 0.5 nm, 200 nm
b) 200 nm, 0.5 nm
c) 0.5 nm, 400 nm
d) 0.05 nm, 200 nm

3. 20 Angstroms are equal to?

a) 1.5 Nanometre
b) 1 Nanometre
c) .01 Nanometre
d) 0.5 Nanometre

4. 10 Angstroms are equal to?

a) 1 Nanometre
b) 1.5 Nanometre
c) .01 Nanometre
d) 0.5 Nanometre

5. The most powerful modern electron microscope can distinguish objects as small as?

a) 0.5 nanometre
b) 0.04 nanometre
c) 0.02 nanometre
d) 0.2 nanometre

6. Most powerful modern electron microscope can distinguish objects as small as 0.2 nanometre as compared with 200 nm for light microscope. This is a _______ fold improvements over the light microscope?

a) 1000
b) 10000
c) 100
d) 10

7. Most powerful modern electron microscope can distinguish objects as small as 0.2 nanometre as compared with 200 nm for light microscope. How this is a thousand fold improvements over the light microscope?

a) 0.2/200
b) 0.2 x 200
c) 200/0.2
d) 200 x 0.2

8. One nm is equal to?

a) 1/100000 cm
b) 1/10000 m
c) 1/10000 mm
d) 1/1000000 mm

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