BLOCK 2 Questions to consider

BLOCK 2 Questions to consider

• Definition/Illustration– Spectrum of solubilty, insoluble but if shaken, emulsifies=droplets

in solvent• Influencing (IV) factors

– Heat– Type charge on chemical– Concentration of chemical/amount of water– Acidity/alkalinty (in baseline/guided expt)– Mixing/shaking/swirling etc.

• Things to measure/observe (DV)– Number/frequency– density– Size in microscope FOV

• Chemical explanation– Interaction between +/- charges (diagram) complex– Reduction of hydration around colloidal particles (research the

terms) simple– ? About role of water

• Connection to origin of life question– Shows a model for possible genesis– Share feature with present and original “cells”

Notes from Prelab

Characteristics of Life/Cell Theory recollections• Cells come from cells• Cells are the smallest unit of life• Metabolizing (respiring, growth, energy

transfer via enzymes)• Reproducing • Self-movement as a response to a stimulus

____________________________Theories as to origin of life• Panspermia- came from across the universe

(evidence: amino acids, fossils)• Chemical evolution- primordial soup (requiring:

energy transfer, polymerization, reproduction, information molecule)