Christina Marshall
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Biology Quiz sobre Bio 110 Final: Chapter 8, criado por Christina Marshall em 13-12-2017.

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Bio 110 Final: Chapter 8

Questão 1 de 10

1

The water necessary for photosynthesis

Selecione uma das seguintes:

  • 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

Explicação

Questão 2 de 10

1

In PSII, p680 differs from the other pigment molecules in the light-harvesting complex in that it

Selecione uma das seguintes:

  • 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

Explicação

Questão 3 de 10

1

The cyclic electron flow that occurs via photosystem I produces

Selecione uma das seguintes:

  • NADPH

  • oxygen

  • ATP

  • all of the above

  • a and c only

Explicação

Questão 4 de 10

1

During linear electron flow, the high-energy electron from p680

Selecione uma das seguintes:

  • 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

Explicação

Questão 5 de 10

1

During the first phase of the Calvin Cycle, carbon dioxide is incorporated into ribulose biphosphate (RuBP) by

Selecione uma das seguintes:

  • oxaloacetate

  • rubisco

  • RuBP

  • quinone

  • G3P

Explicação

Questão 6 de 10

1

The NADPH produced during the light reactions is necessary for

Selecione uma das seguintes:

  • 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

Explicação

Questão 7 de 10

1

The majority of the G3P produced during the reduction and carbohydrate production phase is used to produce

Selecione uma das seguintes:

  • glucose

  • ATP

  • RuBP to continue the cycle

  • Rubisco

  • all of the above

Explicação

Questão 8 de 10

1

Photorespiration

Selecione uma das seguintes:

  • 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.

Explicação

Questão 9 de 10

1

Photorespiration is avoided in C4 plants because

Selecione uma das seguintes:

  • 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

Explicação

Questão 10 de 10

1

Plants commonly found in hot and dry environments that carry out carbon fixation at night are

Selecione uma das seguintes:

  • oak trees

  • C3 plants

  • CAM plants

  • all of the above

  • a and b only

Explicação