AP Biology assist » plant Biology » Photosynthesis » recognize light dependent reaction
Explanation:

Photosynthesis starts with power from light being converted to chemical energy. The just answer explanation correctly explaining this process describes the counter of light energy (photons) come chemical energy (excited electrons).

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Photons current in irradiate strike and excite electron in chlorophyll.

The photons are highly energized irradiate particles, i beg your pardon strike chlorophyll and also excite and free electrons in the chlorophyll molecule. This excited electron pass with the electron deliver chain and their energy is collected to do ATP.


Explanation:

During the light reactions water is split and also the by-product is oxygen. Oxygen is climate released back into the atmosphere. Street are developed during the Calvin cycle and also are not a straight product the the irradiate reactions.


The light reactions the photosynthesis space responsible because that the production of which of the complying with molecules?


Explanation:

The irradiate reactions room the procedures of the photosynthesis that function to convert solar power into chemical energy that deserve to be used throughout the Calvin cycle. The light reactions use solar energy to reduce

*
 to
*
 and to convert
*
 to
*
.


Explanation:

The irradiate reactions the photosynthesis happen in the thylakoid membranes inside of chloroplasts in tree cells. Photosynthesis counts on the buildup the a proton gradient across a membrane to generate ATP. The thylakoid is one organelle current only in plants. The phospholipid bilayer and cell wall surround plant cells, and also are not connected in photosynthesis.


Explanation:

The molecule is reduced due to the fact that when a molecule benefit an electron, that is stated to be reduced. The price oxidized would have been favored if the molecule lost an electron. Plasmolysis has actually nothing to execute with the obtain or loss of one electron, and also the term redoxed does no fit right into this question. Hydrolysis is when a link is damaged using water, so that is incorrect as well.


Explanation:

The irradiate dependent reaction converts solar power to chemical energy, using the photosystem to record light energy, and also ultimately develop ATP and NADPH. Pigment molecule in the photosystem absorb photons the light, which then reach the chlorophyll, interesting electrons in the chlorophyll. The excited electron then is transferred to a primary electron acceptor of the electron carry chain (and is changed by the splitting of water (to develop O2, H+ and also e-)).


During the irradiate dependent reaction, what is the objective of creating a proton gradient in the thylakoid lumen?


To create 

*


To generate 

*


Explanation:

The ATP synthase protein is embedded in the thylakoid membrane. As soon as sunlight is captured by photosystem II in the light dependent reaction, water is split, producing O2 and 2 H+ ions and also 2 electrons. Together the electrons circulation down the electron carry chain, this power is provided to pump hydrogen ion from the stroma right into the optical membrane space, creating a high concentration that hydrogen ion inside the thylakoid lumen. Eventually, the hydrogen ion then circulation from the area of high concentration (in the thylakoid lumen) to an area of low concentration (in the stroma ), through the ATP synthase protein. The motion of the hydrogen ions with this framework combines ADP through phosphate, producing ATP.


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Example inquiry #8 : recognize Light Dependent reactions


Which does no occur during the irradiate dependent reaction?


Possible Answers:

*
 is split, producing H+ ions, oxygen, and electrons


NADPH is produced


carbon permanent is aided through the enzyme Rubisco


ATP is produced


Correct answer:

carbon fixation is aided by the enzyme Rubisco


Explanation:

Carbon fixation, catalytic analysis by Rubisco, occurs during the first step that the irradiate independent reaction.


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Example inquiry #11 : Photosynthesis


What products of the irradiate dependent reaction are essential for the light independent reaction come occur?


Possible Answers:

ADP and also NADP+


ADP and also NADP+


ATP and NAPH


ATP and NADP+


Correct answer:

ATP and NAPH


Explanation:

 ATP and also NADPH are developed during the light dependent reaction, and also are reactants crucial for the light independent reaction (Calvin Cycle) to occur. Throughout the irradiate independent reaction, ATP and also NADPH are provided to transform phosphoglycerate molecules (PGA) come glyceraldehyde-3-phosphate molecule (G3P). G3P is then offered to develop glucose.

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Example question #12 : Photosynthesis


Which is true of light dependent reactions?


Possible Answers:

NADP+ is a product


*
 is a reactant


GTP is a reactant


ATP is a product


Correct answer:

ATP is a product


Explanation:

Light dependency reactions convert solar power to chemical power (in the kind of ATP and NADPH). Sunlight and also H2O room the reactant the the light dependent reaction. The sunshine is captured by photosystem II, and is provided to excite electrons. Dividing of H2O produces hydrogen ions offered to establish the proton gradient, and also electrons created replace the electrons transferred to the main electron acceptor.


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