Bio 1500 Final Exam Mizzou 1 Questions
With Correct Answers.
Recognize dragonflies as formidable aerial and aquatic predators - answerDragonflies live in
water for the first two years of their life. After this adult dragonflies hunt other flying insects
while they are flying themselves; they ca...
Bio 1500 Final Exam Mizzou 1 Questions
With Correct Answers.
Recognize dragonflies as formidable aerial and aquatic predators - answer✔✔Dragonflies live in
water for the first two years of their life. After this adult dragonflies hunt other flying insects
while they are flying themselves; they cannot feed while walking or sitting.
Identify dragonflies as ancient insects (when, what, why) - answer✔✔Carboniferious, meganura,
first insects to fly, selection pressures
Develop more than one hypothesis for why dragonflies were so big - answer✔✔atmospheric
PO2, and the lack of aerial predators
Rank the importance of team-working skills, content knowledge, communication skills, learning
skills, ... for employers and graduate school admission - answer✔✔1. team work -last is content
knowledge
Memorize the dates of major milestones in the history of life on earth, as indicated in the online
learning module - answer✔✔1. universe formed- 13.7 bya
2. earth formed- 4.5 bya
3. moon formed- bya
4. oldest rocks formed- 3.8-4bya
5. oldest fossils (or signs of life) 3.5-3.8bya
6. Cyanobacteria- 2500 mya
7. Eukaryotes- 2000 mya
algae- 1200 mya
"snowball" ice ages- 750-600 mya
8. first animals 590 mya
9. Cambrian explosion 545-520 mya
10 carboniferous- 360-330 mya
11. first dinosaurs- 230 mya
12. birds 150 mya
13. dinosaur extinction 65 mya
14. modern humans 200,000 years ago
Recall environmental characteristics of the Carboniferous time - answer✔✔lots of greenery,
atmospheric PO2 was 35%
Relate the changes of O2 levels in the atmosphere to biological events in the history of life. -
answer✔✔photosynthesis evolved because of cyanobacteria, at first the rocks oxidized and used
up all the oxygen. Once they reached a certain point, life exploded on earth because of the
available oxygen. Great oxygenation event caused the ozone to form, mass extinction because
excess O2. O2 reacted with methane- eventually caused snowball ice age
Recognize that the geology of earth has been dramatically changed by biology - answer✔✔the
development of photosynthesis and the ricks used up free O2
Describe the mechanism of diffusion at the level of single particles - answer✔✔random
movement
Describe the pattern observed due to diffusion and the level of many particles - answer✔✔high
to low concentration
Explain how the behavior of single particles explains the observed pattern at the many particles
level - answer✔✔they continue to move from high to low concentration until the gradient no
longer exists (reaches equilibrium)
Explain the relationship between distance and time during diffusion and recall the important
consequence for transport in organisms by diffusion - answer✔✔Diffusion is only efficient over
short distances; this limits the maximum size of the organism because of its limitation of O2
transportation
Determine whether a particular set of data would be best depicted using a scatterplot, bar graph,
or line graph - answer✔✔categorical= bar graph, change over time= line graph, correlation in
events= scatter
Describe the situations in which a logarithmic axis is preferable to a linear axis -
answer✔✔typically, a log axis is helpful when you have a large range of data
Recognize how graphs can be used to mislead people - answer✔✔the scales on the graphs can be
manipulated to look like there is a large difference between different variable when there really
is not
Formulate a hypothesis about the factors that allowed insects to be so big, based on the findings
of Clapham and Karr - answer✔✔PO2 of the atmosphere and predation
Describe and interpret Figure one of Clapham and Karr - answer✔✔The y axis on the top part is
the length of the insects' wings in millimeters. The y-axis on the bottom graph shows the
atmospheric environmental oxygen concentrations. The x-axis on the top labels the species as
well as the time periods, while the x-axis on the bottom shows the age in million years. The
black bars represent more than 50 measurements that occurred in that "bubble," this is to indicate
that a lot of measurements were taken without crowding the graph. The top and bottom graphs
are displaying the correlation of atmospheric PO2 and the wingspan length over time.
Describe the evidence that supports Clapham and Karr's conclusions - answer✔✔They measured
temperature, atmospheric PO2, and surrounding predators through fossils
Identify the wavelengths (i.e. colors) of light absorbed by chlorophyll - answer✔✔red and blue
Recall the basic function, inputs, and outputs of the light dependent and light independent
reactions of photosynthesis. Explain why O2 is a by-product of photosynthesis - answer✔✔light
dependent-ATP is Synthesized
NADPH is made
H2O splits and O2 is the by product
light independent- Calvin cycle
uses the energy from ATP and NADPH to generate even more ATP, the protons are used as
Energy and complex 1 & 2 are used to break down CO2 to create G3P. G3P is used to make
glucose molecules
identify ATP as the main transport form and immediate source of energy in cells - answer✔✔the
purpose of photosynthesis is to generate ATP for the cells to use as energy
Describe the chemical and energetic changes that occur as ADP cycles to ATP and back again to
ADP - answer✔✔The bond between the 2nd and 3rd phosphate provide energy because As
bonds are broken, energy is released. the opposite is the same, the molecules need energy to form
the phosphate bonds back together to get ATP from ADP.
Recall the processes that lead to the Great Oxygen Event & how earth looked before and after
this event - answer✔✔the evolution of cyanobacteria
Assess the different outcomes of the oxygen revolution regarding their consequences for life on
earth and for earth's geology and atmosphere - answer✔✔(O2 reacted with minerals first) the
free O2 reacted with methane in the atmosphere and created the Ozone layer. Because of this,
there is now excess O2 in the atmosphere that was harmful to life on earth causing a mass
extinction
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