What is the difference between prokaryotic and eukaryotic cells?
A. Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do.
B. Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.
C. Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
D. Prokaryotic cells always have cell walls, but eukaryotic cells do not.
Answers: 2
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Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.
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Biology, 22.06.2019 20:00
Which of the following leukocyte is not correctly matched with its function? lymphocytes: immune response against viral infections eosinophil: bacterial macrophage monocytes: macrophage basophils: inflammation eosinophil: bacterial macrophage
Answers: 2
What is the difference between prokaryotic and eukaryotic cells?
A. Eukaryotic cells do not have me...
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