Lecture 6

Question 1

Earth’s energy budget

Answer 1

Describes the
balance between the
radiant energy that
reaches Earth from
the sun and the
energy that flows
from Earth back out
to space.
Energy from the sun
is captured by
photosynthesis.

Question 2

Photosynthesis vs Cellular Respiration

Answer 2

Question 3

Light-dependent reaction

Answer 3

Occurs in the thylakoid membrane, located in the stroma of the cloroplast

Question 4

Electron transport chain produces

Answer 4

ATP, NADPH, O2

Question 5

Reaction center of PSII

Answer 5

P680

Question 6

reaction center of PSI

Answer 6

P700

Question 7

Electron transfer chain

Answer 7

The excited electron from PSII is passed down the ETC, continuously reducing molecules of lower energy

Question 8

photolysis

Answer 8

Occurs as water is split into hydrogen(h+) and o2 product.
An electron from this lysis is used to replenish the PSI and PSII

Question 9

Chemiosmosis and ATP synthase

Answer 9

Membrane proteins use the energy dissipated by ETC to pump hydrogen ions into the thylakoid lumen and create an H+ gradient
H+ ions pass through membrane protein ATO synthase and drive the reduction of ADP to ATP

Question 10

Light independent reaction The Calvin-Benson Cycle

Answer 10

The light dependent interactions create energy fuels this cycle, allowing the organism to produce sugars from CO2

Question 11

Artificial Photosynthesis Strategies (APS)

Answer 11

Artificial photosynthesis is a
carbon-neutral, sustainable method for
generating energy by splitting water to
form molecular hydrogen.