Briefly indicate the arrangement of chloroplast in cells exposed to very high light intensity and the...
Briefly indicate the arrangement of chloroplast in cells exposed to very high light intensity and the benefit of this arrangement
Homework Answers
Chloroplasts move migrate away from strong light to protect chloroplasts from photo-damage and cell death. When exposed to high light intensity, chloroplasts remain on the anticlinal cell walls or the side walls of long and thin palisade cells to avoid absorbance of more light preventing build up of ROS that can damage the photosynthetic apparatus,chloroplast of the cells
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Briefly indicate the arrangement of chloroplast in cells exposed
to very high light intensity and the...
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During high-intensity exercise such as sprinting or lifting a very heavy weight, energy is provided to...
During high-intensity exercise such as sprinting or lifting a
very heavy weight, energy is provided to cells by the phosphogen
system (or ATP-PC system), which only works for a few seconds. If
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this molecule diffuse in 8.3 seconds?
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It is found that the quantum efficiency is very high for the reaction hv C2C14 +...
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During high-intensity exercise such as sprinting or lifting a
very heavy weight, energy is provided to cells by the phosphogen
system (or ATP-PC system), which only works for a few seconds. If
the diffusion constant of ATP is 3 ×10−10 m2 s-1, how far could
this molecule diffuse in 8.3 seconds?
OH O سے OH -P-O-P-O-P-O-CH - s ATP: Ci His NsO, 2/3 NH Adenosine triphosphate (ATP) is a molecule that is often used to transfer chemical energy within cells...
In cells that are exposed to sunlight, ultraviolet (UV) light can result in covalent linkage between two adjacent DNA bases. If not repaired in time, such dimers can lead to inheritable mutations. Consider the sequence 5'-GGTATGATCATTATAA-3' in the chromosome of a cell that is exposed to intense sunlight. How many possible dimers can form in the region of DNA double helix corresponding to this sequence? 04 O3 Sort the following steps in the order that they normally happen during the...
It is found that the quantum efficiency is very high for the reaction hv C2C14 + Cl2 → C2C16. It is proposed that the reaction mechanism is as follows: ko Cl2 + hy 2C1 . ky Cl. +C2C14. C2C1 • CzCl; +C12 -> C2Clo + C1- · C2C15 +- C2C15 4. Czcla + C2C14 Derive the rate law for this proposed mechanism. (Note: The input light intensity should also be included in the rate law.)
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many features that allow them to function efficiently. These complexities took a very, very long time to evolve and likely progressed as a series of small improvements that were naturally selected. For example, modern eukaryotic cells have internal membranes surrounding their organelles and the nucleus. This arrangement likely arose when the cellular membranes of some ancient bacterial cells accidentally folded to become internal membranes. Which...
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