Exam (elaborations)
IB 150 Final Test Review With Complete Solutions Latest Update
- Course
- IB 150
- Institution
- University Of Illinois - Urbana-Champaign
IB 150 Final Test Review With Complete Solutions Latest Update
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Solution 2024/2025Pepper
IB 150 Final Test Review With Complete
Solutions Latest Update
The following sequence indicates the flow of energy (indicated by the
arrows) from the sun to the energy required to move a protein within a cell.
Which of the following best completes this?
sunlight → photosynthesis → ________ → ________ → ________ →
phosphorylation → protein movement
A) oxygen, ATP, carbon dioxide
B) carbon dioxide, glucose, water
C) ATP, cellular respiration, glucose
D) glucose, cellular respiration, ATP
E) cellular respiration, glucose, fermentation ANS✔✔ D) glucose, cellular
respiration, ATP
The light-capturing reactions of photosynthesis _________.
A) convert light energy to chemical energy in ATP
B) convert light energy to chemical energy in glucose (or G3P)
C) use light energy to transfer chemical energy in ATP to chemical energy in
glucose (or G3P)
D) use light energy to transfer chemical energy in glucose (or G3P) to
chemical energy in ATP ANS✔✔ A) convert light energy to chemical energy
in ATP
, Solution 2024/2025
Pepper
What does it mean to say that CO₂ becomes fixed?
A) it is buried underground as fossil fuel
B) it is oxidized in an exergonic reaction
C) it is released as a gas during cellular respiration
D) it is released as a gas by the burning of fossil fuel
E) it becomes bonded into an organic compound ANS✔✔ E) it becomes
bonded into an organic compound
Why does chlorophyll appear green?
A) Only green light is absorbed because green light contains more energy
for photosynthesis than any other wavelength.
B) Green light is reflected because the energy of a green photon is NOT
ENOUGH to excite an electron in a chlorophyll molecule to a higher state.
C) Green light is reflected because the energy of a green photon is TOO
GREAT, and causes an excited electron to be ejected from the chlorophyll
molecule.
D) Only green light is absorbed because the energy of a green photon
excites an electron EXACTLY ONE energy state higher, where it is stable and
remains in equilibrium.
E) Green light is reflected because the energy of a green photon is MORE
THAN NEEDED to excite an electron of a chlorophull molecule one energy
state higher, but NOT ENOUGH to excite it two energy states higher. ANS✔✔
E) Green light is reflected because the energy of a green photon is MORE
THAN NEEDED to excite an electron of a chlorophull molecule one energy
state higher, but NOT ENOUGH to excite it two energy states higher.
, Solution 2024/2025
Pepper
Which of the following is most directly responsible for converting the energy
from a photon of light to chemical energy?
A) the Calvin Cycle
B) the release of energy due to fluorescence
C) reflection of certain wavelengths of light energy
D) the transfer of an electron to an organic compound by the reaction
center
E) the transfer of energy between chlorophyll molecules in the antenna
complex ANS✔✔ D) the transfer of an electron to an organic compound by
the reaction center
How does the OVERALL reaction (i.e. the major inputs and outputs) of
photosynthesis compare to that of cellular respiration?
A) identical inputs, but different outputs
B) identical outputs, but different inputs
C) same basic reaction, but plants use light, and animals use glucose
D) most inputs of one reaction are the outputs of the other, and vice versa
E) cellular respiration is virtually identical to the Calvin Cycle; the light-
capturing reactions are unique to plants ANS✔✔ D) most inputs of one
reaction are the outputs of the other, and vice versa
True or false? Oxygen (O₂) is an input of the light-capturing reactions of
photosynthesis.
, Solution 2024/2025
Pepper
A) True
B) False ANS✔✔ B) False
True or false? Oxygen (O₂) is an input of aerobic cellular respiration.
A) True
B) False ANS✔✔ A) True
True or false? ATP is an output of the light-capturing reactions of
photosynthesis.
A) True
B) False ANS✔✔ A) True
True or false? Carbon dioxide (CO₂) is an output of aerobic cellular
respiration.
A) True
B) False ANS✔✔ A) True
True or false? ATP is an output of the Calvin Cycle.
A) True
B) False ANS✔✔ B) False
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