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Cyanobacteria carry out photosynthesis using two photosystems as in green plants. Furthermore, other photosynthetic bacteria, like as the purple photosynthetic bacterium Rhodospirillum rubrum which have only a one photosystem reaction center. This can hold out cyclic electron transport, producing a proton gradient and thus synthesizing ATP (cyclic photophosphorylation). In other words, a noncyclic pattern of electron transport can be carried out in that the electrons from the cytochromes pass to NAD+ (rather than NADP as in green plants) to create NADH. The electron donor is, for instance, hydrogen sulfide (H2S) that produces sulfur (S). The Hydrogen gas (H2) and a various of organic compounds can also be used as electron donors by particular photosynthetic bacteria. Because H2O is not used as electron donor, no oxygen is formed.
FAT SOLUBLE VITAMINS Vitamin A Vitamin A may be of most practical importance in cattle feed. Vitamin A is essential for normal growth, reproduction, maintenance of epithel
Define Surface Sampling Food contact surfaces (e.g. storage tank, packaging material, ripening room, utensils, equipments, refrigerators etc.) which directly or indirectly (wal
How do embryos of placental mammals excrete nitrogen wastes? Placental animals, as well as embryos, excrete urea. In the adult placental mammal urea is excreted by the urine.
Q. Explain Shear Pin Model? Shear Pin Model: In this type, a shearing force is applied using a pin to shear the food Product. We are rupturing the element of the food product b
Q. Describe about Collective or Universal consciousness? Neurochemicals and associated brain processes are simply channel selectors for various states of consciousness. All sta
LARYN X - Study of larynx is known as Laryngeology. In man it is more prominent than woman known as Adam's apple. It is sound producing organ. At its base trachea presen
Assume for this question that we are discussing a rare human disorder. Describe as detailed as possible the characteristics of this disorder if it is: autosomal dominant autosomal
Why Fats have highest heat energy density? Fats have highest heat energy density of 9 Kcal/g. It is the major storage form of energy in body requiring least space and minimum w
MECHANISM OF URINE FORMATION - Production of urine is uripoisis or diuresis. First of all it was explained by Kushney. Nephron separates acidic urine from basic blood, so ma
Q. Do all mammals have a placenta? Mammals of the monotreme group (platypus, echidnas) are oviparous egg- laying and they don't have a placenta. Mammals of the marsupial group
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