Iris diaphragm Study guides, Class notes & Summaries
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![BIO 171 - Exam 3](/docpics/3569705/651fdc9422ac3_3569705_121_171.jpeg)
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BIO 171 - Exam 3
- Exam (elaborations) • 39 pages • 2023
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A nanometer is defined as: 
A. 10-3 
B. 10-6 
C.10-9 
D. 10-12 C. A nanometer is defined as one-billionth of a meter. 
2. True or False: A nanometeris longer than a micrometer. False. A nanometer is 1,000 times 
smaller than a micrometer. 
1. Resolution and contrast are two critical factors that influence your ability to see an object. Explain 
each. Resolution refers to the distance between two objects at which the objects still can be 
seen as separate. Poor or low resolution means two (or mor...
![MMBIO 222 -- Quiz 1 questions with Complete Solutions](/docpics/5359688/6649e3782667e_5359688_121_171.jpeg)
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MMBIO 222 -- Quiz 1 questions with Complete Solutions
- Exam (elaborations) • 5 pages • 2024
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Antonie Van Leeuwenhoek Correct Answer-Dutch merchant, microbiologist. Discovered the microbial world. Called microbes, "animacules". Constructed over 250 microscopes that could magnify up to 300 times. 
 
Condenser Correct Answer-Focuses light through specimen. 
 
Iris diaphragm Correct Answer-Controls the amount of light entering the condenser. 
 
Resolving Power Correct Answer--Ability of a microscope to differentiate two closely spaced objects as being distinct from one another. 
-Can dist...
![BIOD 171 Microbiology Exam 3 Portage learning 2024](/docpics/4726214/65f02e73c6943_4726214_121_171.jpeg)
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BIOD 171 Microbiology Exam 3 Portage learning 2024
- Exam (elaborations) • 9 pages • 2024
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micrometer one millionth of a meter, 10^ -6 
2. nanometer one billionth of a meter, 10^-9 
3. Resolution the distance between two objects at which 
the objects still can be seen as separate 
4. What happens if the resolution 
is poor? 
Poor or low resolution means two (or more) 
objects may appear as one. 
5. Contrast the difference in light absorbance between 
two objects. 
6. What happens if there is poor 
contrast? 
gives a high background and makes the 
visualization of multiple objects diff...
![CSMLS QUESTIONS AND ANSWERS ALREADY PASSED](/docpics/4973974/6617abfc7e496_4973974_121_171.jpeg)
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CSMLS QUESTIONS AND ANSWERS ALREADY PASSED
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CSMLS QUESTIONS AND ANSWERS 
 
ALREADY PASSED 
 
Which of the following actions should be taken first when a new co-worker consistently fails to 
replenish analyzer reagents at the end of their shift? Discuss the concern with the co-worker 
directly 
 
What is the term for the moral obligation a health care professional has to keep patient health 
information private? Not privacy lmao 
 
Pale cytoplasmic staining w/ H&E or lacks three distinct shades of pink Acidify eosin w/ 
acetic ā or check ...
![Microbiology LAB Exam 1 with Complete Solutions](/docpics/4219871/65a30657c31df_4219871_121_171.jpeg)
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Microbiology LAB Exam 1 with Complete Solutions
- Exam (elaborations) • 22 pages • 2024
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Microbiology LAB Exam 1 with Complete Solutions Microscope- The Condenser focuses the light ging into the objective lens 
Microscope- The Iris Diaphragm adjusts the amount of light going into the objective lens 
Microscope- Nosepiece holds the objective lenses and rotates to change from one objective to another 
Microscope- Coarse Objective Knob moves the stage larger distances to help get the object in focus 
Microscope- Fine Adjustment Knob moves the stage smaler increments to help get the obj...
![Bio 253 Practical 1 All Answers Correct](/docpics/5060549/66241ddbe39e8_5060549_121_171.jpeg)
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Bio 253 Practical 1 All Answers Correct
- Exam (elaborations) • 31 pages • 2024
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Bio 253 Practical 1 All Answers Correct 
Mitochondria is the site of ATP production/powerhouse 1 
Protein synthesis is formed in the the ribosomes 2 (dots on the rough ER) 
Brainpower 
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lipid synthesis is conducted in the smooth endoplasmic reticulum 6 
The nucleus is thecontrol center containing DNA 4 
The nucleolus is responsible for the production of ribosomes located inside the nucleus 8 
centrioles makes spindle fibers for cell division 5 
Cell membrane controls what ente...
![BIOS 242 Lab 3: Microscopy- Observation of Cells](/docpics/3809578/654e2301262f2_3809578_121_171.jpeg)
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BIOS 242 Lab 3: Microscopy- Observation of Cells
- Other • 11 pages • 2023
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Lab 3: Microscopy- Observation of Cells 
Learning Objectives: 
 Use the compound light microscope for observation of cells. 
 Identify different types of bacteria based on their shapes. 
 Identify a variety of eukaryotic cells. 
VIDEOS: 
a) How to Use a Compound Microscope (Elon TLT) 
b) Parts of the Compound Microscope (Tami Guy) 
Introduction: 
Microbiology is the study of organisms, which cannot be seen with naked eye. You will need help of a microscope to 
observe these “tiny anim...
![CSMLS QUESTIONS AND ANSWERS ALREADY PASSED](/docpics/4973989/6617acb4743a1_4973989_121_171.jpeg)
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CSMLS QUESTIONS AND ANSWERS ALREADY PASSED
- Exam (elaborations) • 25 pages • 2024
- Available in package deal
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CSMLS QUESTIONS AND ANSWERS 
 
ALREADY PASSED 
 
Which of the following actions should be taken first when a new co-worker consistently fails to 
replenish analyzer reagents at the end of their shift? Discuss the concern with the co-worker 
directly 
 
What is the term for the moral obligation a health care professional has to keep patient health 
information private? Not privacy lmao 
 
Pale cytoplasmic staining w/ H&E or lacks three distinct shades of pink Acidify eosin w/ 
acetic ā or check ...
![BIOD 171 MODULE 3 EXAM Questions and Answers with Complete Solutions rated A+](/docpics/4968086/6616c9ce8ae0e_4968086_121_171.jpeg)
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BIOD 171 MODULE 3 EXAM Questions and Answers with Complete Solutions rated A+
- Exam (elaborations) • 8 pages • 2024
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Available in package deal
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- $9.99
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BIOD 171 MODULE 3 EXAM Questions and Answers with Complete Solutions rated A+ 
A nanometer is defined as: - 10 -9 or one-billionth of a meter 
True or False: A nanometer is longer than a micrometer - False 
A nanometer is 1000x smaller than a micrometer 
Resolution and contrast are two critical factors that influence your ability to see an object. Explain each. - Resolution refers to the distance between two objects at which the objects can still be seen as separate. Poor or low resolution means...
![AMT MT Practice Exam 2023 with 100% correct answers](/docpics/3680490/6536b95a563b1_3680490_121_171.jpeg)
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AMT MT Practice Exam 2023 with 100% correct answers
- Exam (elaborations) • 15 pages • 2023
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In terms of solution concentration, which of the following terms would be applied to the representation below? 
m = moles/kg of solvent - correct answer molality 
 
The parts of a binocular bright-field microscope would include all of the following: - correct answer Body tube, Light Base, Eyepiece Diopter adjustment, Interpupillary distance adjustment, Revolving nosepiece, Objectives, Stage with side clips, Condenser and iris diaphragm, Light, Arm, Coarse adjustment knob,, Fine adjustment ...
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