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Bio 1500 - Exam 1 (Mizzou-Bush) Questions And Answers Rated A+ New Update Assured Satisfaction
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characteristics of the net movement of all molecules? - -is predictable -directed from high to low concentration -stops when it reaches equilibrium what is the First Law of Thermodynamics? - energy can neither be created nor destroyed, but can change from one form to another the passive moveme...

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  • August 24, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • Bio 1500 -
  • Bio 1500 -

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Bio 1500 - Exam 1 (Mizzou-Bush)
characteristics of the net movement of all molecules? - -is predictable

-directed from high to low concentration

-stops when it reaches equilibrium



what is the First Law of Thermodynamics? - energy can neither be created nor destroyed, but can
change from one form to another



the passive movement of molecules - diffusion



what type of thermal movements is diffusion driven by? - Brownian



characteristics of individual molecules? - -random, unpredictable motion

-not directed to low concentration

-never stops



how does the diffusion time change with the distance traveled? - diffusion time increases with the
square of the distance



[EXAMPLE] 2x distance equals.... - 4 fold time



[EXAMPLE] 10x distance equals.... - 100 fold time



diffusion works great within what types of cells? except for which cells? - -within cells that
lengthen between 1-100 micrometers

-doesn't work good within axons



the capacity to do work or cause motion - energy

, two types of energy? - kinetic & potential



energy due to motion; includes heat, light, and electricity - kinetic energy



stored energy due to position; includes chemical energy in bonds - potential energy



_______ wavelengths have more energy and ______ have less energy - short; long



which wavelengths can cause cancer? - -gamma rays

-UV rays

-x rays



describe how we perceive colors. - the colors we perceive are based on which wavelengths strike
our eyes.



what happens when light strikes an object? - it can be reflected, transmitted, or absorbed



casting back a light or heat, mirroring or giving back or showing an image - reflection



when energy is transferred to the molecules of the objects - absorption



when something travels over an object to get to its destination - transmission



the process by which light energy is used to make food molecules from CO2 and H2O -
photosynthesis



where does photosynthesis take place? - chloroplasts

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