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Crop Physiology Photosynthesis: Machinery Modes and Consideration


Delivered on: 4 June 2024


This video explores the fascinating process of photosynthesis in plants, focusing on key concepts such as:

Light and Dark Reactions: Understanding how light energy is harnessed to produce chemical energy through the light-dependent and light-independent reactions.

Gas Exchange: Examining the crucial role of carbon dioxide (CO2) in photosynthesis, including the significance of ambient CO2 (Ca), intercellular CO2 (Ci), and chloroplastic CO2 (Cc).

Photosynthetic Pathways: Exploring the different modes of photosynthesis: C3, C4, and CAM, and how they adapt to various environmental conditions.

This video will be beneficial for students, researchers, and anyone interested in plant biology and the intricate mechanisms that sustain plant life.


Summary:

Photosynthesis

• How a Plant Harnesses Light Energy to Make Chemical Energy


Respiration

• Turning Chemical Energy into Fuel for Growth, Development and Reproduction


Understanding Ca, Ci & Cc

  • Ca = Ambient CO2 concentrations

  • Ci = Intercellular CO2 concentrations

  • Cc = Chloroplastic CO2 concentrations


The chemical equation for photosynthesis can be summarized as follows:

  • 6CO2 + 6H2O + light energy → C6H12O6 + 6O2


Light dependent reaction produced Oxygen, ATP and NADPH

Light indepoendent reaction/Calvin cycle produce sugar


Modes of photosynthesis

  • C3

  • C4

  • CAM


Keywords: Crop Physiology, Photosynthesis, Respiration, C3 Pathway, C4 Pathway, CAM Pathway, Plant Biology, Plant Science, Carbon Dioxide, CO2, Gas Exchange, Light Reaction, Dark Reaction, Calvin Cycle, Chlorophyll, Plant Growth, Plant Development, Education


Location:

Faculty of Agriculture, Universiti Putra Malaysia

Fakulti Pertanian, Universiti Putra Malaysia, 43000 Seri Kembangan, Selangor

XPMM+9J Seri Kembangan, Selangor

2.9845517506267742, 101.73803356324866


Attribution 4.0 International — CC BY 4.0 - Creative Commons

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