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What does bacteria cells have that plant and animal cells don’t? What does animal cells have that bacteria and plant cells don’t? What do plant cells have that animal and bacteria cells don’t? What do all three have in common? What does bacteria cells and plant cells have in common […]

Assignment http://ed.ted.com/on/4Po9AliB 1- In two paragraphs list and describe the major steps involved in photosynthesis. http://ed.ted.com/on/Hpqpcgn9 1- The Calvin cycle is the second part of the photosynthesis reaction. Photosynthesis stores energy from the sun and carbon from the air together in the high-energy molecule, glucose. Like any factory the Calvin […]

1. Biologists frequently use phosphate-buffered solutions in experiments.  You need to prepare a sodium phosphate solution at pH 6.7 by mixing NaH2PO4 and Na2HPO4 (pKa =7.2).  What are the respective concentration of each of these substances if you want the final concentration of phosphate ([HPO4-2]+[H2PO4-] to be 150 mM? 2. Activity […]

Biology 1. Review the major steps of water molecules’ journey from soil to a tree and into leaves. Describe how sugar from photosynthesis is transported throughout the plant. Write a 700- to 1,050-word paper, including the pictures requested below, describing primary and secondary growth in plants and the journey of […]