Cassulacean Acid Metabolism
A third mechanism for concentrating CO2 at the site of rubisco is found in crassulacean acid metabolism (CAM). Despite its name, CAM is not restricted to the family Crassulaceae …
C-4 Cycle
All plants do not follow the same Calvin cycle (C-3 pathway) in which first stable product of carbon fixation is PGA (3-C compound). In some plants the first stable …
Photorespiration and C-2 Cycle
Ihotorespiration (PR) is process that involves the reoxidation of products just previously assimilated in photosynthesis. The photorespiratory pathway involves the activities of at least three different cellular organelles (the …
Calvin Cycle
It is light independent reaction because light is not directly required for processes but only the products of light reaction (ATP & NADPH2). During these processes carbon dioxide …
INHIBITORS OF PHOTOSYNTHETIC ELECTRON TRANSPORT ARE EFFECTIVE HERBICIDES
Since the dawn of agriculture,man has waged war against weeds. Weeds compete with crop species for water, nutrients, and light and ultimately reduce crop yields. Traditionalmethodsofweedcontrol,suchascroprotation, manual hoeing, or …
Photophosphorylation & Chemiosmosis
Photophosphorylation/ Chemiosmosis. (Peter Mitchell 1961) The production of ATP in the chloroplast or in other membranes during light reaction is called photophosphorylation. Photophosphorylation occurs in ATP-synthase complex or coupling …
Light Dependent Reaction-Z scheme
Electron transport actually begins with the arrival of excitation energy at the photosystem II reaction center chlorophyll, P680, which is located near the lumenal side of the reaction center. …
Emerson Enhancement Effect
By the late 1950s, several experiments were puzzling the scientists who studied photosynthesis. One of these experiments carried out by Emerson, measured the quantum yield of photosynthesis as a …
Light and Photosynthesis
Light is the visible portion of spectrum. Light Has Characteristics of Both a Particle and a Wave A wave is characterized by a wavelength, denoted by the …
LEAVES ARE PHOTOSYNTHETIC MACHINES
The leaves are modified for maximum absorption of light. Anatomy of leaf Epidermis: The leaf is sheathed with upper and lower epidermis. The exposed surfaces of the epidermal cells …