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Ap Bio Lab 4 Answers Plant Pigments And Photosynthesis

Ap bio lab 4 answers plant pigments and photosynthesis

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Plant pigments and photosynthesis lab answers chapter 8

Chickpea plants irrigated with magnetized water grew taller and heavier than plants irrigated with tap water (Hozayn and Qados, 2010). The authors attribute this stimulation to an increase in photosynthetic pigments, where the magnetic water induces cell metabolism and mitosis meristematic cells in pea, lentil and flax (Belyavskaya, 2001). Additionally, it is believed that new protein bands are formed in plants that are treated with magnetic water, and that these proteins are responsible for increased growth (Hozayn and Qados, 2010). MW has been linked to increases in photosynthetic pigments, endogenous promotors, total phenol and protein biosynthesis in plants (Qados and Hozayn, 2010 and Shabrangi and Majd, 2009).

Ap Bio Plant Pigments And Photosynthesis Lab Answers

Magnetized water has been reported to triple seedling emergence of wheat (Hilal and Hilal, 2000). Reina et al. (2002) reported a significant increase in the rate of water absorption and an increase in total mass of lettuce when treated with MW. Chickpea plants irrigated with MW grew taller and heavier than plants irrigated with tap water (Hozayn and Qados, 2010). The authors attribute this stimulation to an increase in photosynthetic pigments, where the magnetic water induces cell metabolism and mitosis meristematic cells in pea, lentil and flax (Belyavskaya, 2001). Additionally, it is believed that new protein bands are formed in plants that are treated with MW and that these proteins are responsible for increased growth (Hozayn and Qados, 2010). MW has been linked to increases in photosynthetic pigments, endogenous promotors, total phenol and protein biosynthesis in plants. (Qados and Hozayn, 2010 and Shabrangi and Majd, 2009).

AP Biology Lab 4:Plant Pigments and Photosynthesis Lab

Lab Report On Plant Pigments And Photosynthesis …

Cyanobacteria have a close evolutionary relationship with eukaryotes. They have the same photosynthetic pigments as the chloroplasts of algae and land plants. Chloroplasts are the right size to be descended from bacteria, reproduce in the same manner, by binary fission, and have their own genome in the form of a single circular DNA molecule. The enzymes and transport systems found on the folded inner membranes of chloroplasts are similar to those found on the cell membranes of modern cyanobacteria, as are their ribosomes. These similarities between cyanobacteria and chloroplasts suggest an evolutionary link between the two, and can be explained by the theory of .

DNA evidence suggests that the first eukaryotes (green plants) evolved from prokaryotes (through events) between 2500 and 1000 million years ago. Fossils of eukaryotes that resemble living brown algae have been found in sedimentary rocks from China that are 1700 million years old, while possibly the oldest photosynthetic eukaryote, , comes from rocks 2100 million years old. Note that the diversity of modern algal groups, and particularly of their chloroplasts, suggests that these endosymbiotic events were not unusual. Modern algae comprise a range of organisms with very different structures but identical photosynthetic pigments. This suggests that very different host organisms have formed a symbiosis with the same photosynthetic cells. That is, the algal groups must have evolved through separate endosymbiotic events, and the group as a whole is identified on the basis of a similar level of structure, rather than on its evolutionary origins. Such groups, where the members have several different evolutionary origins, are described as .

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