BIO 1500 LAB- MICROSCOPY AND PROTISTS QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
Types of microscopes Ans✓✓✓1. dissecting- looks at overall structure
of an organism
2. compound- for organisms organelles, cells, etc.
3. inverted- looks at bacterium
Know the parts of the microscope Ans✓✓✓
At 100x we must always Ans✓✓✓use oil immersion
Total magnification= Ans✓✓✓ocular lens (10x) x objective lens
microscope image always appears Ans✓✓✓upside down and reversed
(inverted)
How do you move the specimen on the microscope?
Ans✓✓✓ALWAYS move the slide in the opposite direction to what you
see
proper care and use of microscopes: right/wrong Ans✓✓✓Right
1. always carry microscope using 2 hands (one under base and one on
the arm)
, 2. always start at lowest magnification, focus on object, then increase
3. use coarse focus knob ONLY with lowest scanning objective
4. store scope with cord wrapped around hanger/base, with scanning
objective in place and stage fully lowered
Wrong
1. DO NOT use oil immersion lens without oil
2. DO NOT use anything other than lens paper to clean lens
locomotion Ans✓✓✓movement (flagella, cilia, pseudopodia)
supergroup is the same thing as Ans✓✓✓clade
protists are NOT Ans✓✓✓monophyletic (do not share a common
ancestor)
Protists are Ans✓✓✓Eukaryotes
- they can be unicellular, multicellular, or colonial
- they can also be autotrophic, heterotrophic, mixotrophic, parasitic
- either sexually or asexually reproduce
unicellular Ans✓✓✓A single celled organism
AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
Types of microscopes Ans✓✓✓1. dissecting- looks at overall structure
of an organism
2. compound- for organisms organelles, cells, etc.
3. inverted- looks at bacterium
Know the parts of the microscope Ans✓✓✓
At 100x we must always Ans✓✓✓use oil immersion
Total magnification= Ans✓✓✓ocular lens (10x) x objective lens
microscope image always appears Ans✓✓✓upside down and reversed
(inverted)
How do you move the specimen on the microscope?
Ans✓✓✓ALWAYS move the slide in the opposite direction to what you
see
proper care and use of microscopes: right/wrong Ans✓✓✓Right
1. always carry microscope using 2 hands (one under base and one on
the arm)
, 2. always start at lowest magnification, focus on object, then increase
3. use coarse focus knob ONLY with lowest scanning objective
4. store scope with cord wrapped around hanger/base, with scanning
objective in place and stage fully lowered
Wrong
1. DO NOT use oil immersion lens without oil
2. DO NOT use anything other than lens paper to clean lens
locomotion Ans✓✓✓movement (flagella, cilia, pseudopodia)
supergroup is the same thing as Ans✓✓✓clade
protists are NOT Ans✓✓✓monophyletic (do not share a common
ancestor)
Protists are Ans✓✓✓Eukaryotes
- they can be unicellular, multicellular, or colonial
- they can also be autotrophic, heterotrophic, mixotrophic, parasitic
- either sexually or asexually reproduce
unicellular Ans✓✓✓A single celled organism
