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Biology 11, Chapter 1
Cell Structure And Functions - 8
1.
When our eyes see two objects or dots as one?
a) When they are closer together than about 100 cm
b) When they are closer together than about 100 micrometres
c) When they are closer together than about 100 millimetres
d) When they are closer together than about 100 nm
2.
When light beams from two objects or dots fall on the same “detector” cell at the rear of the eyes, we will see these two objects or dots as?
a) One
b) Two answers are correct
c) Two
d) Distinct
3.
When the two dots are farther apart than 100 micrometres, the two beams fall on different cells, only then our eyes resolve them and tell that they are?
a) Two answers are correct
b) Two objects and not one
c) One object and not two
d) Two objects
4.
The increase in the apparent size of an object is called?
a) Modification
b) Magnification
c) Edification
d) Unification
e) Resolution
5.
To make small object seen larger one way to increase resolution is to increase their?
a) Contrast
b) Two answers are correct
c) Magnification
d) Colour
6.
Who was able to see small cell by magnifying?
a) Robert Hooke
b) Robert Hooke
c) Archimedes
d) Rudolf Virchow
7.
In order to be able to see a cell clearly, what is the size limit imposed by the structure of human eye?
a) 100mm
b) 100µm
c) 1000mm
d) 1000µm
8.
If two cells can only be magnified upto 70 µm, the human eye will see them as?
a) Will not be able to distinguished between the two
b) Two answers are correct
c) One
d) Two
9.
A network of lines parallel to each other or crossing each other to form a series of squares or other shapes are called?
a) Scale
b) Grit
c) Clench
d) Grid
10.
It is a photographically produced gird, cemented between two glasses?
a) Scale
b) Graticule
c) Grit
d) Clench
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