Iris diaphragm Study guides, Class notes & Summaries

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...

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...

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 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 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 Mitochondria is the site of ATP production/powerhouse 1 Protein synthesis is formed in the the ribosomes 2 (dots on the rough ER) Brainpower Read More 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...

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 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+ 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...

What are the 6 I's of culturing microbes? - Answer-Inoculation Incubation Isolation Inspection Information Gathering Identification What is the function of the condenser on a microscope? - Answer-Focuses the light waves through the iris What is the function of the oculars on a microscope? - Answer-To observe the specimen on the slide and enlarge it What is the function of the objective lens on a microscope? - Answer-To focus and enlarge the specimen What is the function of the ...