Bio 110 Final: Chapter 8

Beschreibung

Biology Quiz am Bio 110 Final: Chapter 8, erstellt von Christina Marshall am 13/12/2017.
Christina Marshall
Quiz von Christina Marshall, aktualisiert more than 1 year ago
Christina Marshall
Erstellt von Christina Marshall vor fast 7 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
The water necessary for photosynthesis
Antworten
  • is split into H2 and O2
  • is directly involved in the synthesis of carbohydrates
  • provides the electrons to replace the lost electrons in photosystem II
  • Provides the H+ needed to synthesize G3P
  • does none of the above

Frage 2

Frage
In PSII, p680 differs from the other pigment molecules in the light-harvesting complex in that it
Antworten
  • is a carotenoid
  • absorbs light energy and transfers that energy to other molecules with out the transfer of electrons
  • transfers an excited electron to the primary electron acceptor
  • does not transfer an excited electron to the primary electron acceptor
  • acts as an ATP synthase to produce ATP

Frage 3

Frage
The cyclic electron flow that occurs via photosystem I produces
Antworten
  • NADPH
  • oxygen
  • ATP
  • all of the above
  • a and c only

Frage 4

Frage
During linear electron flow, the high-energy electron from p680
Antworten
  • eventually moves to NADP+
  • becomes incorporated in water molecules
  • is pumped into the thylakoid space to drive ATP production
  • provides the energy necessary to split water molecules
  • falls back to the low-energy state in photosystem II

Frage 5

Frage
During the first phase of the Calvin Cycle, carbon dioxide is incorporated into ribulose biphosphate (RuBP) by
Antworten
  • oxaloacetate
  • rubisco
  • RuBP
  • quinone
  • G3P

Frage 6

Frage
The NADPH produced during the light reactions is necessary for
Antworten
  • the carbon fixation phase, which incorporates carbon dioxide into an organic molecule of the Calvin Cycle
  • the reduction phase, which produces carbohydrates in the calvin cycle
  • the regeneration of RuBP of the Calvin Cycle
  • all of the above
  • a and b only

Frage 7

Frage
The majority of the G3P produced during the reduction and carbohydrate production phase is used to produce
Antworten
  • glucose
  • ATP
  • RuBP to continue the cycle
  • Rubisco
  • all of the above

Frage 8

Frage
Photorespiration
Antworten
  • is the process where plant use sunlight to make ATP
  • is an inefficient way plants can produce organic molecules and in the process use O2 and release CO2
  • is a process that plants use to convert light energy to NADPH
  • occurs in the thylakoid lumen
  • is the normal process of carbohydrate production in cool, moist environments.

Frage 9

Frage
Photorespiration is avoided in C4 plants because
Antworten
  • these plants separate the formation of a four-carbon molecule from the rest of the Calvin cycle in different cells.
  • these plants carry out only anaerobic respiration.
  • the enzyme PEP caroboxylase functions to maintain high CO2 concentrations in the bundle-sheath cells
  • all of the above
  • a and c only

Frage 10

Frage
Plants commonly found in hot and dry environments that carry out carbon fixation at night are
Antworten
  • oak trees
  • C3 plants
  • CAM plants
  • all of the above
  • a and b only
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