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AIM: How is Autotrophic Nutrition carried out?

AIM: How is Autotrophic Nutrition carried out?. DO NOW: Compare and contrast Heterotrophic and Autotrohpic Nutrition. Photosynthesis. Process in which light energy converts inorganic compounds into chemical energy of organic compounds (food). Form of autotrophic nutrition. Equation.

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AIM: How is Autotrophic Nutrition carried out?

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  1. AIM: How is Autotrophic Nutrition carried out? DO NOW: Compare and contrast Heterotrophic and Autotrohpic Nutrition.

  2. Photosynthesis Process in which light energy converts inorganic compounds into chemical energy of organic compounds (food)

  3. Form of autotrophic nutrition

  4. Equation light water + oxygen Carbon + dioxide water glucose + Chlorophyll (wastes) light 6CO2 + 12H2O C6H12O6 + 6H2O + 6O2 Chlorophyll http://www.kscience.co.uk/animations/photosynthesis.swf

  5. Where does Photosynthesis occur? Cells of leaves

  6. Cells that contain chloroplast which contains chlorophyll a green pigment that absorbs light

  7. THE BASICS: • Autotrophs perform photosynthesis. • Include most plants, some bacteria & protists (algae) • Capable of synthesizing organicmaterials from inorganicraw materials • Ultimate source of energy = Sun (d) Cyanobacteria (c) Euglena (b) Kelp (a) Mosses, ferns, and flowering plants

  8. THE BASICS: • Organelle: Occurs in the CHLOROPLAST • Raw materials: Carbon dioxide & Water • Products: Glucose & Oxygen gas • Plants use some Glucose for their own energy– and store excess as STARCH

  9. Review

  10. video Products Raw materials/ reactants

  11. Leaf is the photosynthetic organ of the plant

  12. What happensduring photosynthesis?

  13. 2 PARTS 1. Light dependent reactions Photochemical reactions

  14. Chlorophyll traps light causing Water to split into H and O H2O  H2 + O

  15. Oxygen (waste) exits through stomata Hydrogen = used for next part Oxygen (air) H2O  H2 + O

  16. 2. Light – Independent reactions Dark reactions Carbon fixation No light needed

  17. Glucose (C6H12O6) CO2 and H combine to form glucose CO2+ H

  18. What are the gas bubbles produced by the plant?Which of the 2 reactions produced these bubbles, the light or the dark?

  19. Best color light for photosynthesis Blue & red Easily absorbed

  20. Least effective = green (reflected)

  21. Glucose What is the glucose used for? Respiration (making energy) ATP

  22. Stored as starch

  23. Do plants carry out respiration? • Yes in order to produce energy • Aerobic Respiration • Occurs in mitochondria

  24. Do you recall? • Which organelle is the site of autotrophic nutrition? • What are the two raw materials necessary for a plant to perform photosynthesis? • Analyze this reaction is it dehydration synthesis or hydrolysis?

  25. DO NOW: Copy and complete the chart below and answer the question below. A C B Why is photosynthesis an important process to all living things?

  26. Reverse of photosynthesis

  27. Produces food (source of energy) for itself & all other organisms

  28. AIM: How are plants adapted for Autotrophic Nutrition?

  29. LEAVES STOMATA ROOTS VASCULAR TISSUE/BUNDLE

  30. ROOTS the root is the organ of a plant body that typically lies below the surface of the soil The two major functions of roots are 1.) absorption of water and inorganic nutrients 2.) anchoring the plant body to the ground

  31. ROOT HAIRS Increase surface area for absorption of water and nutrients

  32. STOMATA (stomate; singular) is a pore found in the leaf and stem epidermis that is used for gas exchange Guard cells which are responsible for regulating the size of the opening

  33. LEAVES A leaf is an above-ground plant organ specialized for photosynthesis

  34. Adaptive Features of Leaves Cuticle for protection Stomata on the lower surface Flat and thin to increase surface area for light exposure

  35. Cuticle Epidermis Chloroplasts Palisade Layer Spongy Layer Stomate and guard cells

  36. "opening" A B controls the opening

  37. CUTLICLE Creates a waterproof membrane Prevents contamination of plant tissues with external water, dirt and microorganisms

  38. VASCULAR TISSUE

  39. VASCULAR TISSUE/BUNDLE Contains Xylem and Phloem tubes Tubes that are used to transport materials around plant Phloem transports food (glucose) Xylem transports water from the roots

  40. Review:

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