Section 3.3 - Photosynthesis Photosynthesis uses __________________________________ from the sun to fix ________________________ into _______________________________ (namely glucose). The captured radiant energy is stored within the _______________ of the carbohydrate as chemical energy Photosynthesis is used by many autotrophs to make their own food o egs. vascular plants, algae, cyanobacteria Write the net equation for photosynthesis below in words and in chemical formulas (pg. 83 of your text) Photosynthesis and Cellular Respiration appear to be ___________________________________ , but they use very different - ______________________________. The processes are similar in that both use: 1. _______________________________________________ 2. _______________________________________________ 3. _______________________________________________ Plants are made of various types of tissues o egs. Stem, leaves, roots, reproductive organs The main site of photosynthesis is the ____________, although chloroplasts are found in all green plant parts Stamata (singular =stomate) are pores on the underside of leaves which allow for gas exchange. To conserve water, these can be opened and closed Opening the Stomata Closing the Stomata
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Section 3.3 - Photosynthesis Photosynthesis uses __________________________________ from the sun to fix
________________________ into _______________________________ (namely glucose).
The captured radiant energy is stored within the _______________ of the carbohydrate as chemical energy
Photosynthesis is used by many autotrophs to make their own foodo egs. vascular plants, algae, cyanobacteria
Write the net equation for photosynthesis below in words and in chemical formulas (pg. 83 of your text)
Photosynthesis and Cellular Respiration appear to be ___________________________________ , but they use very different ______________________________.
The processes are similar in that both use:1. _______________________________________________
Plants are made of various types of tissueso egs. Stem, leaves, roots, reproductive organs
The main site of photosynthesis is the ____________, although chloroplasts are found in all green plant parts
Stamata (singular =stomate) are pores on the underside of leaves which allow for gas exchange. To conserve water, these can be opened and closed
Opening the Stomata Closing the Stomata
Chloroplast Pore
Guard Cells
The Structure of the Chloroplasts
Zoomed in on Granna:
Stages of PhotosynthesisPhotosynthesis is divided into two stages:
1. Light dependent reactions (light reactions) 2. Light independent reactions (dark reactions)Uses sun’s energy to produce: Uses stored chemical energy to produce
Don’t be fooled!!!
The Electromagnetic Spectrum
The full range of wavelengths of light emitted from the sun is known as the electromagnetic spectrumVisible light is between ______________________.Light has properties of both waves and particles
Light travels in bundles of energy called ___________.The energy from photons is used to initiate photosynthesis.
Photosynthetic pigments absorb light Each pigment can absorb light (photons) within a specific range of _________________________ Wavelengths that are not absorbed are said to be ____________________ or reflected
◦ This is the light we see determines what colour we see The most common pigments in plants are ________________________ and _________________________
◦ What colours are absorbed? ______________________ (optimal @ 400-450nm) What colours are reflected? ______________________ (optimal @650-700nm) _________________________________
PhotosystemsWhere do the light dependent reactions take place? ____________________________________________________________________________________________ Groups of molecules responsible for the light dependent reactions are called photosystems
Each photosystem has:1. _______________________________________