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SCI 135 - Fourth Exam Fall 2018
MULTIPLE CHOICE.
On the line to the left, place the letter of the choice
that best answers the question.
Three Points Each. NOTE: "e" answers are never the correct
answer.
1. The middle
step of both aerobic respiration and
photosynthesis involves
_______ a. An electron transport chain
b. Some sort of cycle
c. An acid-base reaction
d. Something with half-glucose molecules
e. Something that’s not at the beginning…or the end…
2.
Cytokinesis happens when
_______ a. Cells divide
b. Cells migrate c. Populations
migrate d. Enzymes activate
e. People who speak Latin name things
3. When a group
almost goes extinct, it can create a
_______ a. Temporal shift
b. Founder effect c. Crossing over
effect d. Bottleneck effect
e. Loss of friends - they’re always complaining!
4. Which works
by lowering activation energy?
_______ a. Chemosynthesis
b. Photosynthesis c. Cofactors
d. Enzymes
e. I’m not sure my energy could get any lower
5.
Embryo cells become tissues
through
_______ a. Mutation
b. Differentiation c.
Fertilization d. Activation
e. A lengthy application process
6. ATP
can do its job by
_______ a. Transferring phosphates onto
molecules b. Being a structural
carbohydrate
c. Absorbing light and reradiating it
d. Converting into APP
e. Asking very politely
7. Which process
is most likely to produce extra copies of genes in offspring?
_______ a. Mosaicism
b. Fusion c. Crossing over
d. Hybrid vigor
e. Ordering more on Amazon
8. In many
chemical reactions, there’s less energy in the products than
was in the reactants.
The “extra” energy
_______ a. Disappears
b. Is recycled c. Is lost as
heat d. Goes back to the reactants
e. Is used for bitcoins
9. How much
more efficient (in terms of ATP production) is the
aerobic part of aerobic respiration,
compared to the anaerobic part (approximately)?
_______ a. 2 times
b. 4 times c. 100 times
d. 17 times e. A bunch
10. Which is
not a critical nutrient for
plants?
_______ a. Minerals
b. Phosphates c. Chlorophyll
d. Nitrates e. Twizzlers
11.
Evolution turns out to be changes over time in
_______ a. Cofactors
b. Metabolic pathway c. Entropy
d. Gene pool e. Popularity
12. The most
productive part (most ATP) of aerobic respiration
is
_______ a. Photosynthesis
b. Electron transport chain c. Krebs
cycle
d. Glycolysis
e. ATP-makin' thingee
SHORT ANSWER.
Answer any eight of the following questions for 4 Points
Each.
Note: if you answer more than eight, only the first eight
will be corrected.
You can get partial credit on these answers.
1. What exactly happens when a protein
denatures?
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| 2. What are two different
body systems that start as mesoderm? |
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| 3. What are two different
nitrogenous wastes? |
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4. During fertilization, what
goes through fusion?
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| 5. What are two different
challenges to living things that were the first moving
from the water to the land? |
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| 6. For oxygen debt - |
In
what type
of tissues?
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What
is it?
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| 7. What two things are
coupled in a coupled reaction? |
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| 8. What happens during
interphase that is - |
MITOSIS
RELATED?
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NOT
MITOSIS
RELATED? |
9. What exactly is a
vitamin?
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| 11. What are two
requirements for a Hardy-Weinberg population?
(not the alleles) |
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| 12. The two different major
uses for carotenoids in plants
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| 13. Give a definition
for each - |
CENTRIOLE -
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CENTROMERE -
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| 14. Living things from
which two types of ecosystems were probably the
first to become land-living species? |
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| 15. The two main uses for
glucose in plants - |
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| 16. For a cell plate - |
Where
& when
would one be found?
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What
is
it?
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LONG ANSWER.
Answer any four of the following questions for Eight Points Each.
Note: if you answer more than four, only the first four
will be corrected.
You can get partial credit on these answers.
1. At the points labeled with the stars, attach the
appropriate labels from this list:
Violet. X-Ray. InfraRed. Red. Blue. Ultraviolet. |
High Frequency \ Visible Range / Low Frequency
* * / * * * \ *
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2.
For each step in the theoretical development of Life on
Earth, put them in chronological order,
from earliest
to latest, 1 - 8 in the boxes to the left. |
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Cambrian
Explosion
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Aerobic
Respiration
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Snowball
Period
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Photosynthesis |
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Movement
onto Land |
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Molecular
Competition
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Primordial
Soup
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3. What are four different ways that
anaerobic organisms
impact humans? |
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4. Below is a graph showing how enzyme activity,
measured through the rate of the reaction catalyzed by the enzyme,
reacts to changes in pH (NOT
temperature!). Fill in: A) The name
given to the pH where the graph peaks; B)
Why the graph peaks there;
C) and D) What's happening to
the enzyme molecules as the rate drops off (C)
below the peak; and (D) above the peak. |
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* A
*
*
*
*
Reaction
C *
* D
Rate
*
*
*
*
*
*
*
*
*****
******
B
pH ---->
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5.
For the four phases of mitosis (so
not the one between),
name the phases in order and give one specific thing for each that happens
particularly in that phase. |
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6. Briefly describe the three different ways that
enzyme
inhibitors can work.
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7. Describe (don’t just give
a term) four different types
of reproductive isolation. |
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8. For the main photosynthesis reactions: |
| Name |
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Exact Materials or Energy Used
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Exact Materials Produced
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Link to
Answer Key
BONUS QUESTIONS.
Answer as many as you are able. Wrong answers will not result in points being
lost from the main exam. You can get partial credit on these answers.
What is the “spindle pull rule”? Three Points.
What is the purpose of a polar body? Three Points.
What part of the sperm cell absolutely is not supposed to
get into the egg cell? Three Points.
The study of what specific diseases led to the discovery of
hybrid vigor? Three Points Each.
What type of organisms have been found to be mechanically
isolated? Three Points.
How do living things “break” (but not really) the second
law of thermodynamics? Three Points.
What sort of substances are often irreversible enzyme
competitors? Three Points.
Why do lipids have so many Calories? Three Points.
What’s the wackier version of panspermia? Three Points.
Where could you go today to find natural examples of the
materials of primordial soup? Three Points Each.
What one topic on the sheet did we not quite get to? Three
Points.
Why will species from the land that are now full-time back
in the water never be able to breathe water? Three Points.
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