Bio 1500 Mizzou Schul TEST 2 Questions With Answers Graded A+ Assured Success
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Course
Bio 1500 Mizzou Schul
Institution
Bio 1500 Mizzou Schul
Fitness - the genetic contribution of an individual to the next generation's gene pool relative to
the average for the population, usually measured by the number of offspring or close kin that survive to
reproductive age.
Memorize the four postulates of natural selection. - 1. Individuals vary t...
Bio 1500 Mizzou Schul TEST 2
Fitness - the genetic contribution of an individual to the next generation's gene pool relative to
the average for the population, usually measured by the number of offspring or close kin that survive to
reproductive age.
Memorize the four postulates of natural selection. - 1. Individuals vary their traits
2. Some of the variation is heritable and is passed to offspring
3. More offspring are produced than survive to reproduce
4. Survival and reproduction are non-random; those with favorable traits reproduce most and pass their
genes to the next generation
Know the differences between prokaryotic and eukaryotic cells - Prokaryotes: unicellular,
nucleoid, no membrane bound organelles, small
Eukaryotes: uni or multicellular, nucleus, membrane bound organelles, large
Categorize different energy forms as 'kinetic' or 'potential' - Kinetic energy: the energy of
movement
□ Includes heat, light, electricity
Potential energy: stored energy
□ Includes chemical energy
□ You can store energy in chemical bonds
Apply the First Law of Thermodynamics - Energy is never created or destroyed, but it can change
form
Describe the mechanism of diffusion at the level of single particles - particles move from high to
low concentration
Describe the pattern observed due to diffusion and the level of many particles - random
, Explain how the behavior of single particles explains the observed pattern at the many particles level -
probability
Identify the wavelengths (i.e. colors) of light absorbed by chlorophyll - red, blue and violet light
The main transport form and immediate source of energy in cells - ATP
Describe the chemical and energetic changes that occur as ADP cycles to ATP and back again to ADP -
E leaves ATP which makes ADP
Recall the processes that lead to the Great Oxygen Event & how earth looked before and after this event
- Cyanobacteria evolved photosynthesis which created O2 as a side effect which lead to Great
Oxygen Event
Before: all organisms heterotrophic prokaryotes
After: Set the stage for geology and biology as we know it today
Assess the different outcomes of the great oxygen revolution regarding their consequences for life on
earth and for earth's geology and atmosphere. - Minerals formed
□ Banded iron ore
Ozone layer formed
□ Protection from UV-light
Free O2 is toxic to cells
□ Led to global mass extinction
O2 reacted with Methane (greenhouse gas), removing it from the atmosphere
□ Led to snowball ice age (2.4-2.1 bya)
Some prokaryotes evolved ways to use O2
□ Leading to evolution of cellular respiration
(later) Eukaryotes with chloroplasts
□ More effective photosynthesis
□ Even higher O2 levels
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