Light dependent reactions

Question 1

There are two sets of reactions..

Answer 1

Light dependant reaction

Light indépendant reaction

Question 2

Light dependant reaction requires

Answer 2

Light energy and Water

Question 3

Light dependant reaction products

Answer 3

ATP, NADPH, Oxygen

Question 4

Light Independent reaction requires

Answer 4

ATP, CO2, NADPH, RuBP

Question 5

Light independent reaction products

Answer 5

PGAL (Also known as G3P)

Question 6

In light dependant reactions, what is trapped and used to generate 2 high-energy compounds ____ & ____

Answer 6

Traps solar energy and produces ATP and NADPH

Question 7

In light dependant reactions, the energy of ATP and the reducing power of NADPH are used to..

Answer 7

Reduce carbon dioxide and make glucose

Question 8

The main purpose of the light dependant reaction is to..

Answer 8

Synthesize ATP and NADPH in the Stroma

Question 9

The synthesization of ATP and NADPH in the Stroma releases..

Answer 9

Oxygen

Question 10

Light energy splits..

Answer 10

Water molecule in the Thylakoid during the process of photosynthesis

Question 11

The first process of light dependent reaction..

Answer 11

Light energy splits water in thylakoid

Question 12

The second process of light dependent reaction..

Answer 12

PSI II accepts an electron from the water. Solar energy strikes the PSI II and the electron causing it to be “excited”.

Question 13

The third process of light dependent reaction..

Answer 13

The electron reaches the electron accepter of PSI II and is passed down

Question 14

The electron gets passed down a series of other molecules embedded in the thylakoid membrane known as..

Answer 14

Electron transport change

Question 15

The forth process of light dependent reaction..

Answer 15

A small amount of energy is released and this pushes H from the Stroma, across the Thylakoid membrane and into the Thylakoid space

Question 16

The fifth process of light dependent reaction..

Answer 16

H ion concentration becomes higher in the thylakoid creating a concentration gradient

Question 17

The sixth process of light dependent reaction..

Answer 17

Light is absorbed by Photosystem I where the electron becomes excited and is passed to an electron acceptor

Question 18

The seventh process of light dependent reaction..

Answer 18

The election is combined with NADP to form NADPH with the help of NADP reductase (enzyme)

Question 19

When Hydrogen ions are forced from the Stroma to the Thylakoid space, they can’t diffuse back because..

Answer 19

The membrane is impermeable (not allowing fluid to pass) to these ions

Question 20

ATP synthase allow..

Answer 20

Allows hydrogen ions to move down their gradient and try to reach the equilibrium

Question 21

The energy is used to convert ADP + P –> ATP in a process called..

Answer 21

Chemiosmosis