Biology, 23.06.2019 22:30 ianball025
Light arriving at a concave mirror on a path through the focal point is reflected
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Biology, 21.06.2019 15:00
Although there are a limited number of amino acids many different types of proteins exist because..
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Biology, 21.06.2019 19:40
What feature of cell theory is best demonstrated in the image
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Biology, 21.06.2019 20:00
With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.
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Biology, 21.06.2019 23:30
Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?
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Light arriving at a concave mirror on a path through the focal point is reflected...
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