Name ______

Autotroph vs. Heterotroph:

Photosynthesis: Converting ______from the ______into ______, which they then store primarily as ______.

Biochemical pathway:

Some energy that is released by cells in another biochemical pathway is known as ______.

Heterotrophs and autotrophs perform ______.

Only ______perform photosynthesis.

The waste products of ______, ______and water, are the reactants of ______.

LIGHT

  • Travels in ______
  • White light ----a combo of ______.
  • Visible Spectrum-
  • Measured in ______.
  • Pigments absorb colors and ______what we see.
  • Pigment-______.

CHLOROPLAST---label and list functions.

PIGMENTS: ---______

  • Chlorophyll a:
  • Chlorophyll b:
  • ______: pigments that aid in light capture……absorb different wavelengths that chlorophyll a b….makes light capture more efficient…
  • Carotenoids=
  • Xanthopyll= yellow greens
  • Chlorophylls are most abundant and mask the other pigments. Other pigments show up in ______&______of trees. In the ______plants lose their ______and the accessory pigments then are able to show up.

PHOTOSYNTHESIS occurs in 2 reactions….the ______and DARK reactions.

THE LIGHT REACTION!!!! (2 parts)

  • Needed to fuel the Dark reaction (biochemical pathway)
  1. Light capture: 1st step in photosynthesis. Light E is the fuel.
  2. Accessory pigments and chlorophyll a
  3. Occurs in the ______(organelle)
  1. Electron Transport Chain (2 steps—photosystem I and II)
  2. This occurs because ______molecules split and allows electrons to be free.
  1. Photosystem I
  2. Chlorophyll a absorbs ______energy. Electrons become ______.
  3. Because electrons are excited they have more energy. They move to a higher Energy level….by leaving chlorophyll a (______reaction)
  4. PEA (primary electron acceptor) accepts the electrons –(______).
  5. PEA donates the electrons the ______.
  6. Electrons combine with ______and NADP
  7. Result= --______.
  1. Photosystem II
  • Chlorophyll a continues to capture______. And replace lost ______. This allows reactions to continue.
  • This continues to allow ______to split which produces free electrons and ______.
  • Electrons combine with ______to form ATP.
  • Chemiosmosis--

THE DARK REACTION AKA ______

  • Remember: Hydrogen protons building up in the ______from the ______and pumped to the ______(active transport)….this creates a ______.
  • Ultimate goal of photosynthesis is to capture ______atoms from ______and use them to make ______(glucose).
  • Formula for glucose=
  • ______-incorporation of ______into organic compunds.

CALVIN CYCLE

  • Powered by ______and ______from the ______.
  • Goal of Calvin Cycle is to create ______from ______.

STEPS:

  1. ______diffuses into the ______from the ______.
  2. ______, a 3 carbon molecule, is converted into ______, another 3 carbon molecule, ______, ______, and ______are also produced.
  3. RuBP made.

**For every turn of the Calvin Cycle the following is produced:

…..One ______molecule

……1 PGAL (3 turns)

**Each turn uses:

  • 2 ______molecule
  • 2 ______molecules

Photosynthesis Equation:

Rate of Photosynthesis affected by:

  1. ______--increase in L.I. increases the rate initially then levels off.
  2. Carbon Dioxide: increases rate initially
  3. ______: increase in ______accelerates the chemical reactions increasing the photosynthetic rate. Although if it is too high it stops photosynthesis by causing the ______to close which would not allow carbon dioxide in.