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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

Block 3 Questions to Consider

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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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Page 1: Block 3 Questions to Consider

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

Page 2: Block 3 Questions to Consider

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

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