What is the maximum magnification of a scanning electron microscope?
Answer
x500 000
x50 000
x5 000
x0.5
Question 2
Question
What is the maximum resolution of a transmission electron microscope?
Answer
0.5nm
50nm
5nm
500nm
Question 3
Question
To calculate magnification, you must multiply actual size by image size.
Answer
True
False
Question 4
Question
Why is staining used in microscopy?
Answer
To visualise cells and cell components
To increase contrast between different components
To make the cells appear nicer
To view artificial colour when images are black and white
Question 5
Question
Mitochondrion are found in [blank_start]all[blank_end] cells.
Chloroplasts and a cellulose cell wall are found in [blank_start]plant[blank_end] cells.
Centrioles are found in [blank_start]animal[blank_end] cells.
Ribosomes are found in [blank_start]all[blank_end] cells.
Answer
all
plant
animal
bacterial
all
animal
plant
bacterial
all
animal
plant
bacterial
all
animal
plant
bacterial
Question 6
Question
Prokaryotes have [blank_start]circular[blank_end] DNA, eukaryotes have [blank_start]linear[blank_end] DNA.
Prokaryotes have [blank_start]no nucleus - free DNA[blank_end], eukaryotes have [blank_start]nucleus - contained DNA[blank_end].
Answer
circular
Linear
Free
linear
no nucleus - free DNA
nucleus - contained DNA
Question 7
Question
Which organelles are involved in the production of proteins?