Іntroduction to plant photosynthesis
Оценка 4.7

Іntroduction to plant photosynthesis

Оценка 4.7
Интерактивная доска +2
ppt
биология
7 кл
27.03.2019
Іntroduction to plant photosynthesis
PHOTOSYNTHESIS Autotrophic Process: Plants and plant-like organisms make their energy (glucose) from sunlight. Stored as carbohydrate in their bodies. 6CO2 + 6H2O + sunlight  C6H12O6 + 6O2 Plants use sunlight to turn water and carbon dioxide into glucose. Glucose is a kind of sugar. Plants use glucose as food for energy and as a building block for growing. Autotrophs make glucose and heterotrophs are consumers of it. Plant leaves have many types of cells! Plant Cells Oxygen and Sugar! In plants and simple animals, waste products are removed by diffusion. Plants, for example, excrete O2, a product of photosynthesis. PHOTOSYNTHESIS Light-dependent reaction (LIGHT Reaction) Requires light Occurs in chloroplast (in thylakoids) Chlorophyll (thylakoid) traps energy from light Light excites electron (e-) Kicks e- out of chlorophyll to an electron transport chain Electron transport chain: series of proteins in thylakoid membrane Bucket brigade
Іntroduction to plant photosynthesis.ppt

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • Autotrophic Process:  Plants and plant­like  organisms make their energy (glucose) from  sunlight. • Stored as carbohydrate in their bodies. • 6CO2 + 6H2O + sunlight  C6H12O6 + 6O2

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
Photosynthesis­starts to ecological food webs!

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
Photo­synthesis Photo­synthesis means  "putting together with light." "putting together with light." means Plants use sunlight to turn water  and carbon dioxide into glucose.  Glucose is a kind of sugar.  Plants use glucose as food for  energy and as a building block  for growing. Autotrophs make glucose and  heterotrophs are consumers of it.

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
What is the proces s that uses the sun’s energy to make simple sugars

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
Plant leaves have many types of cells!

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
Plant Cells

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
Oxygen and Sugar!

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
• In plants and simple animals, waste products are  removed by diffusion. Plants, for example, excrete O2,  a product of photosynthesis.

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • Light­dependent reaction (LIGHT Reaction) – Requires light – Occurs in chloroplast (in thylakoids) – Chlorophyll (thylakoid) traps energy from light – Light excites electron (e­) • Kicks e­ out of chlorophyll to an electron transport  chain • Electron transport chain:  series of proteins in  thylakoid membrane – Bucket brigade

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • Light­dependent reaction (LIGHT Reaction) – Energy lost along electron transport chain – Lost energy used to recharge ATP from ADP – NADPH produced from e­ transport chain • Stores energy until transfer to stroma • Plays important role in light­independent reaction – Total byproducts:  ATP, NADP, O2

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • Light­independent reaction (Dark Reaction) – Does not require light – Calvin Cycle • Occurs in stroma of chloroplast • Requires CO2 • Uses ATP and NADPH as fuel to run • Makes glucose sugar from CO2 and Hydrogen

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • What affects photosynthesis? – Light intensity:  as light increases, rate of  photosynthesis increases

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • What affects photosynthesis? – Carbon Dioxide:  As CO2 increases, rate of  photosynthesis increases

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
PHOTOSYNTHESIS • What affects photosynthesis? – Temperature:   • Temperature Low = Rate of photosynthesis low • Temperature Increases = Rate of photosynthesis  increases • If temperature too hot, rate drops

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis

Іntroduction to plant photosynthesis
Do you have any questions? • Thank you for attention!
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27.03.2019