Photosynthesis - PowerPoint PPT Presentation

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Photosynthesis

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  1. Photosynthesis

  2. Do Now 11/22/13 Auto- makes its own food from sunlight Hetero – must ingest its food • 1) What is the difference between an autotroph and heterotroph • 2) Plants store ____________________ as cellulose in their plant cells. • 3) Photosynthesis: • _______________+ _______________+ _____________________ =______________________ + _____________ glucose sunlight water CO2 O2 glucose

  3. Do Now 11/25/13 wavelength • 1) The _________________________ of light determines its color. • 2) Chemicals that absorb light are called ______________. • 3) Chloroplasts contain an abundance of saclike photosynthetic membranes called _____________________. pigments thylakoids

  4. Do Now 11/26/13 • 1) What is the chemical formula for photosynthesis? • 2)Name the 2 main components inside the chloroplast that assist with photosynthesis • 3) What is the main difference between ADP& ATP? CO2 + water + sunlight glucose + O2 Stroma, thylakoid ADP – not charged with energy, only has 2 phosphates ATP – charged with energy and has 3 phosphates

  5. Do Now 11/27/13 • 1) Why do trees shed their leaves? • 2) Draw a water molecule • 3) What shape does water freeze?

  6. Do Now 11/27/13 • 1) Why do trees shed their leaves? • 2) Draw a water molecule • 3) What shape does water freeze?

  7. Do Now 12/2/13 • 1) What are the 2 different types of reactions in photosynthesis? • 2) What products are created in light reactions? • 3) What is the product of the Calvin Cycle? Light reactions, Calvin Cycle ATP, NADPH Sugars (glucose and other compounds)

  8. Do Now 12/3/13 – Test Photosynthesis Mon 12/9 • 1) Name 3 substances that are produced when water molecules are broken down • 2) What is the splitting of water important to the continuation of the light reactions? • 3) What product is created from chemiosmosis? Protons (H+), electrons (e-), oxygen (O2) To keep the proton concentration gradient up ATP

  9. Do Now 12/4/13 • 1) Name the part of the chloroplast that the Calvin cycle takes place in • 2) What happens to the 3 carbon molecules made in the Calvin cycle • 3) Distinguish the differences between the C4 and CAM Plants Stroma of the chloroplast 1 Makes glucose, the rest are used to continually be used in the Calvin cycle to produce glucose C4 –tropical climates stoma closed during hot part of day CAM – dry climates, stoma closed during day open at night

  10. Do Now 12/5/13 • 1) Small pores in leaves: • 2) stack of thylakoids • 3) a series of enzyme- assisted chemical reactions that produces a three-carbon sugar molecule • 4) The energy used to establish proton gradient across the thylakoid membrane comes from : stomata granum Calvin Cycle Splitting of water

  11. Do Now 12/6/13 • 1) What are accessory pigments? • 2)Why does the rate of photosynthesis peak and then decrease as temp increases? • 3) The Calvin cycle begins with what 5 carbon sugar? Carotenoids, pigments that absorb the light not absorbed by chlorophyll a & b It is effected by rate of evaporation RuBP