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Exploring the Fundamental Characteristics of Life and Chemical Evolution

This document delves into the core characteristics that define life, analyzing aspects such as solubility barriers, the influence of temperature, concentration, pH, and movement in biological systems. It discusses measurement techniques for observing cellular characteristics and the significance of proteins and water in chemical stability and biological processes. The connection to the origin of life is explored through theories like the RNA world hypothesis and panspermia, providing a comprehensive understanding of the chemical evolution leading to the development of primitive cells.

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Exploring the Fundamental Characteristics of Life and Chemical Evolution

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  1. 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

  2. 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 life RNA world – chemical evolution panspermia

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