Photo Syn. Light Reactions

Question 1

Heterotrophs

Answer 1

Animals that must get energy from food instead of making their own

Question 2

Biochemical Pathway

Answer 2

Series of chemical reactions where the product of one reaction is consumed in the next reaction

Question 3

Light Reactions

Answer 3

One large stage in photosynthesis where energy is absorbed and is converted into chemical energy which is temporarily stored in ATP and energy intermediates called NADPH

Question 4

6CO2+6H2O▶️C6H12O6+6O2

Answer 4

Equation for photosynthesis

Question 5

What is the chloroplast and its makings?

Answer 5

An organelle of plant cells that absorb light during photosynthesis. Consists of disc-like thylakoids that are in stacks called grana (granum). Stroma is the liquid and the chloroplast is surrounded by an inner and outer membrane

Question 6

Chlorophyl A and B

Answer 6

The pigments located in thylakoids that absorb light. A absorbs more red-orange and B absorbs more blue. Main is A

Question 7

Carotenoids

Answer 7

Secondary pigments that absorb the other colors of the visible spectrum.

Question 8

Step one of Light Reactions

Answer 8

Light energy forces electrons to enter a higher energy level in the two chlorophyll a molecules of photosystem 2. Electrons are called excited. Chlorophyll A molecules have undergone oxidation. Some electrons made replaces the lost one in System 1

Question 9

Step 2 of Light Reactions

Answer 9

Electron is accepted by the primary electron acceptor.

Question 10

Step 3 Of Light Reactions

Answer 10

Primary electron acceptors donate the electrons to the first series of molecules known as the electron transport chain located in the thylakoid membrane. The energy that the electrons lose from being passed on repeatedly is used to power to proton pumps. Pumps H+

Question 11

Step Four of the Light Reactions

Answer 11

Light is absorb in System 1 the same time as System 2. Primary electron acceptor of System 1 donates the electron to a different chain. There it is moved to the stroma and bonds with H+ to make NADPH out of NADP+

Question 12

Last step of Light Reactions

Answer 12

The creation of ATP through chemiosmosis. Enzyme ATP synthase harnesses the great concentration of protons build up in the thylakoid relevant to the stroma. Enzyme adds a phosphate to ADP. Energy provided by proton movement,which is harnessed.

Question 13

Autotrophs

Answer 13

Organisms that uses energy from sunlight or from chemical bonds in inorganic substances to make organic compounds.