BIOL 1406 Lab Practical 1 Review 2016.pptx - BIOL 1406 Lab...

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Chemistry for Today: General, Organic, and Biochemistry
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Chapter 20 / Exercise 20.23
Chemistry for Today: General, Organic, and Biochemistry
Seager/Slabaugh
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EnzymesPhotosynthesisFermentation and RespirationBIOL 1406 Lab Practical One ReviewLabs 1 - 6Scientific InvestigationMicroscope and CellDiffusion and Osmosis1
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Chemistry for Today: General, Organic, and Biochemistry
The document you are viewing contains questions related to this textbook.
Chapter 20 / Exercise 20.23
Chemistry for Today: General, Organic, and Biochemistry
Seager/Slabaugh
Expert Verified
Scientific InvestigationLab One2
Laboratory Objectives1.Describe the components of good experimental design2.Analyze the design of example experiments3.Design your own experiment.Rework the pre-lab questions.Rework the post-lab questions3
Questions and HypothesesDescribe the typical steps when performing an experiment using the scientific?Not all scientific investigations are experiments. What other types of investigations are there?Explain why we examine the results of a scientific investigation to determine if the results are consistent or inconsistent with the hypothesis.Distinguish between an observation and an inference.Distinguish between qualitative and quantitative data.4
Designing ExperimentsUnderstand and be able to identify in an experiment:HypothesisIndependent variable (manipulated)Dependent variable (changes in response to manipulation)Constant variableSample SizeRepeated Measure (replication)Positive controlsNegative controlsPredictions5
Scientific MethodIndependent and Dependent Variables:Be able to identify these!Controlled variables (or constants)Replication and repetitionExperimental group(s) and control groupValue of communicating results and conclusionsDesign the experiment to test how light affects plant growth. What is the hypothesis? What is the independent variable? Dependent variable(s)? Controlled variables? Experimental group? Control group?6
GraphingWhich variable (independent or dependent) is on the X axis and which is on the Y? Variables held constant?7
Microscope and CellsLab Two8
Laboratory Objectives1.Identify the parts and functions of the compound and stereoscopic microscope2.Demonstrate proper technique of carrying and focusing a microscope3.Prepare a wet mount4.Determine total magnification5.Recognize the difference between a compound and stereoscopic microscope6.Identify cell structures and organelles from figures and models and state the functions of each.9
Microscope Identify the parts of compound and stereoscopic (dissecting) microscopes and be proficient in their correct use. Know in detail the differences between the compound and stereoscopic (dissecting) microscope.Be able to estimate the size of a specimen viewed in a compound microscope.10
Principles of MicroscopyMagnificationresults from what?Contrasthow do we manipulate this?Resolutionresults from what?how do we manipulate this?11
The Compound Light Microscope12
Basic Microscope Techniques:Stereoscopic (Dissecting) Light MicroscopeHow does a stereoscopic microscope differ from a compound light microscope?

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