How Living Things Produce Chemicals

How Living Things Produce Chemicals?

Discover how amazing Livings Things are!... In this unit, you will learn how living things produce chemicals in order to sustain LIFE

Photosynthesis (Light and Dark Rxn)

Glyconeogenesis

Fermentation.jpg

Photosynthesis (Light and Dark Rxn)

Activities

Post it HERE!

About us

To play, press and hold the enter key. To stop, release the enter key.

Videos

Must Watch Videos

Living things produce essential chemicals through the following pathways:

A. Photosynthesis

1. Light Reaction

2. Dark Reaction

B. Fermentation

C. Glycolysis

D. Gluconeogenesis

E. Glycogenesis and Glycogenolysis

F. Kreb's Cycle

News Feed

Their findings appear this week in the journal PNAS. The study, titled "Subset of heat-shock transcription factors required for the early response of Arabidopsisto excess light," was led by researchers from Dartmouth, the Salk Institute for Biological Studies and Australian National University.

Too much or too little sunlight or rapidly fluctuating light conditions cause stress to plants, which have sophisticated control systems to utilize light energy for photosynthesis and simultaneously protect themselves from sunburn from very bright sunlight. Plants perform these regulations mainly by regulating nuclear gene expression and multiple intracellular signaling pathways have been shown to play a role in the genomic response of plants to stress, but the processes are not well understood.

In this study, Professor Hou-Sung Jung and his colleagues showed that a group of transcription factors called Heat Shock Transcription Factors are responsible for fast responses of plants to changes in light intensity -- from light conditions that are optimal for photosynthesis to bright light that causes sunburn. The transcription factors, which are proteins that control the flow of genetic information, generate an enzyme responsible for detoxifying harmful molecules, which accumulate under very bright light.

Currently in his laboratory, Jung is characterizing factors involved in plants' responses to prolonged bright light. Studying these short-term and long-term response factors may make it possible to generate plants with increased protection from bright light with enhanced photosynthesis rates.