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Block 3 Questions to Consider. Definition/ Illustration Shows some activity of “life” Barrier to solvent (spectrum of solubilty ) Influencing (IV) factors ( quantified) Heat Proportion, concentration(water amt ) pH Shake, stir, swirl (also time of same) - PowerPoint PPT Presentation
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Block 3 Questions to Consider
• Definition/Illustration– Shows some activity of “life”– Barrier to solvent (spectrum of solubilty)
• Influencing (IV) factors (quantified)– Heat Proportion, concentration(water amt)– pH – Shake, stir, swirl (also time of same)
• Things to measure/observe (DV)– number/frequency– Absolute size (ref measure/clear plastic ruler)– Concentration/density of “cells”– Trace movement/uptake of substances– shape
• Chemical explanation– Protein in solution – unstable chemically– Dehydration of components/role of water– Colloidal properties/why?
• Connection to origin of life question– Primative cells may have been like this– Chemical evolution
Notes from Prelab
Characteristics of Life/Cell Theory recollections
metabolism (catabolism,anabolism) – energy
ability to reproduce organism/cells (growth and repair)
Self movement/reaction to stimulus
Theories as to origin of lifeRNA world – chemical evolutionpanspermia