L2 : Page 27-42 Flashcards

(31 cards)

1
Q

2 kinds of photophosphorylation

A

Cyclic and non-cyclic ph”””

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2
Q

If photophosphorylation is on plants, what do u call to the animal ones

A

Oxidative phosphorylation

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3
Q

What is the electron donor and acceptor of oxidative phosphorylation? which forms ____ on the end and is part on electron transport chain

A

Electron donor : NADPH
Acceptor : Oxygen

Forms water

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4
Q

If knina is ung sa oxidation phosphorylation, what abt the electron donor and acceptor of photophosphorylation

A

Vice versa

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5
Q

is found in chloroplasts which mediates electron transfer and contains an iron- sulfur cluster.

A

Ferredoxin - Ferredoxin (Fd)

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6
Q

Ferredoxin - Ferredoxin (Fd) contains?

A

iron- sulfur cluster

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7
Q

It is involved in the photosynthesis process where its iron atoms accept or discharge electrons when they are being oxidized or reduced

A

Ferredoxin - Ferredoxin (Fd)

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8
Q

is a 10 kD blue copper protein which is located in the lumen of the thylakoid where it functions as a mobile electron carrier shuttling electrons from Cytochrome b6f to P700 in Photosystem I.

A

Plastocyanin

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9
Q

Plastocyanin is a _______ which is located in the lumen of the thylakoid where it functions as a mobile electron carrier shuttling electrons from Cytochrome b6f to P700 in Photosystem I.

A

10 kD blue copper protein

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10
Q

are two important prenylquinones functioning as electron transporters in plants.

A

Plastoquinone (PQ) and ubiquinone (UQ)

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11
Q

They are involved in photophosphorylation and oxidative phosphorylation located in chloroplast thylakoids and mitochondrial inner membrane, respectively.

A

Plastoquinone (PQ) and ubiquinone (UQ)

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12
Q

The _____ provides the electronic connection between the photosystem I and photosystem II reaction centers of oxygenic photosynthesis and generates a transmembrane electrochemical proton gradient for adenosine triphosphate synthesis.

A

cytochrome b6f complex

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13
Q

generates a transmembrane electrochemical proton gradient for adenosine triphosphate synthesis.

A

cytochrome b6f complex

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14
Q

The cytochrome b6f complex provides the electronic connection between the photosystem I and photosystem II reaction centers of oxygenic photosynthesis and generates a _________________ for adenosine triphosphate synthesis.

A

transmembrane electrochemical proton gradient

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15
Q

___ is the last enzyme in the transfer of electrons during photosynthesis from photosystem I to NADPH. The NADPH is then used as a reducing equivalent in the reactions of the Calvin cycle

A

NADP+ reductase

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16
Q

used as a reducing equivalent in the reactions of the Calvin cycle

17
Q

After the energy from the sun is converted and packaged into (2)_________, the cell has the fuel needed to build food in the form of _______

A

ATP and NADPH.

carbohydrate molecules

18
Q

The carbohydrate molecules made will have a backbone of _____. Where does the carbon come from? The carbon atoms used to build carbohydrate molecules comes from _______, the gas that animals exhale with each breath

A

carbon atoms
carbon dioxide

19
Q

The ____ is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules.

20
Q

In plants, carbon dioxide (CO2) enters the chloroplast through the _____ and diffuses into the ____ of the chloroplast-the site of the Calvin cycle reactions where sugar is synthesized. The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle. Others call it the _______ to include the name of another scientist involved in its discovery

A

stomata. stroma

Calvin-Benson cycle

21
Q

site of the Calvin cycle reactions where sugar is synthesized.

22
Q

The Calvin cycle is a part of _____, the process plants and other autotrophs use to create nutrients from sunlight and carbon dioxide. The process was first identified by __________ in ____
1957.

A

photosynthesis.
U.S. biochemist Dr. Melvin Calvin.

23
Q

The Calvin cycle reactions can be organized into three basic stages:

A

fixation, reduction, and regeneration

24
Q

In the stroma, in addition to CO2, two other chemicals are present to initiate the Calvin cycle:

A

an enzyme abbreviated RuBisCO, and the molecule ribulose bisphosphate (RuBP).

25
has five atoms of carbon and a phosphate group on each end.
RuBP
26
____ catalyzes a reaction between CO2 and RuBP, which forms a six-carbon compound (what is that 6 carbon compound?) that is immediately converted into ________-what do u call to that one?
RuBisCO. 6CO2 (6-6) two three-carbon compounds 3-phosphoglycerate or 3-PGA (12-3)
27
In the stroma, in addition to CO2, two other chemicals are present to initiate the Calvin cycle: an enzyme abbreviated RuBisCO, and the molecule ribulose bisphosphate (RuBP). RuBP has five atoms of carbon and a phosphate group on each end. RuBisCO catalyzes a reaction between CO2 and RuBP, which forms a six- carbon compound that is immediately converted into two three-carbon compounds. This process is called _____, because CO2 is "____" from its inorganic form into organic molecules.
carbon fixation, fixed
28
ATP and NADPH use their stored energy to convert the three-carbon compound, 3- PGA, into another three-carbon compound called G3P. This type of reaction is called a ______, because it involves the gain of electrons. A _____ is the gain of an electron by an atom or molecule
reduction reaction. reduction
29
ATP and NADPH use their stored energy to convert the three-carbon compound, 3- PGA, into another three-carbon compound called ___(acronym and full name)
G3P or Glyceraldehyde 3-Phosphate
30
The molecules of ADP and NAD+, resulting from the reduction reaction, return to the ____ to be re- energized.
light-dependent reactions
31
One of the G3P molecules leaves the Calvin cycle to contribute to the formation of the ______, which is commonly ______. Because the carbohydrate molecule has ________, it takes ____ turns of the Calvin cycle to make one carbohydrate molecule (one for each carbon dioxide molecule fixed)
carbohydrate molecule, glucose (C6H1206). six carbon atoms, six. 2 G3P nilalabas bale one carbon na yon. 6 total from each 3 carbon sa G3P