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3 years ago

How does the electron transport chain transfer light energy in photosynthesis

1 answer:

6 0

Electron Transport Chain or ETC is a series of compounds which transfer electrons to electron transfer from electron donors thru a redox reaction which in turn, couples this electron transfer with the proton transfer (H+ ions) through the membrane.
<span>The negatively charge particles that chlorophyll loses to the transport chain or ETC are replinished by the molecules of water. Water is divided and electrons from it are used to replace the electron found in the chrlorophyll pigment.</span>

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What force keeps the notebook from floating in the air?

Minchanka [31]

Answer:

gravity

Explanation:

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gravity pulls us towards the ground, towards the center of the earth (inner core)

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3 years ago

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What would be the main problem with reproduction if meiosis did not take place to form sex cells?

shtirl [24]

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What is homologous series?

PIT_PIT [208]

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4 years ago

What average speed, most nearly, is required to run a 4 minute mile? (1 mile = 1.609 km), (1 min = 60 seconds), (Av Speed = Dist

Rasek [7]

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3 years ago

Indicate whether each of the following occurs mainly in G1 phase (G), S phase (S), or G2 phase (H) of the cell cycle. Your answe

Ronch [10]

Answer:

Correct choice should be:

"SGSG"

Explanation:

The cell cycle consists of G1, S, G2 and M phase. The former three phases include the interphase and M phase is the dividing phase of cell . G1 prepares cell for DNA synthesis. S phase is the phase where DNA replication takes place. G2 phase prepares cell for cell division or M phase.

G1 phase preceeds replication or S phase and G1 phase licences DNA replication.

During other phases of cell cycle, ORC complex masks origin of replication. ORC phosphorylation takes place at S phase, which removes this omplex and unmasks origin of repication site so that replication machinery can bind to it.

DNA helicase activation: S phase

DNA helicase deposition on DNA at the replication origins: G phase (actually G1)

ORC phosphorylation: S phase

Licensing of replication origins : G phase (actually G1)

Hence correct choice should be:

SGSG

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4 years ago