Photosynthesis

Question 1

Autotroph

Answer 1

An organism capable of converting sunlight energy into chemical energy

Question 2

heterotroph

Answer 2

an organism that gets chemical energy by consuming another organism

Question 3

chemoautotroph

Answer 3

an organism extract energy from inorganic compound

Question 4

photosynthesis stages

Answer 4

1 - capture sunlight energy
2- uses energy for ATP and reduction of NADP+ to NADPH
3- using ATP and NADPH to make organic molecules from CO2

Question 5

Photon

Answer 5

A particle of light, and acts as though it is discrete bundle of energy

Question 6

Shorter wavelength

Answer 6

higher energy content

Question 7

Photosystem II

Answer 7

The reaction center of PSII absorbs
photons to excite electrons. PSII is
oxidized and excited electrons are then
transferred to the primary electron
acceptor, then along the ETC to PSI. The missing electrons are replenished by splitting water and taking electrons
from water molecules. This creates O2
in the process

Question 8

Photosystem I

Answer 8

By the time electrons make it to PSI,
they have lost energy and need to be
re-energized. PSI absorbs another
photon to do so. The energy is
transferred to the reaction center
(P700) and then used to reduce an
NADP+ into NADPH. The NADPH is
then used in the Calvin Cycle.

Question 9

*calvin cycle

Answer 9

consists of the
light-independent reactions of
photosynthesis, synthesizing
carbohydrates from atmospheric
CO2
by using the ATP and NADPH
produced by earlier reactions.
➔ It has three basic stages: carbo