How many reactions take place during the Krebs cycle?
a) 4
b) 6
c) 8
d) 10
e) 12
c
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Melanocytes can transfer granules of melanin into nearby epithelial cells.
Answer the following statement true (T) or false (F)
IKI is used to test for the presence of _______.
A) starch and protein B) protein C) cellulose D) starch and cellulose E) starch
Correctly match the term and definition: Endocytosis of a tiny quantity of extracellular fluid containing solute molecules.
A)Pinocytosis B)Phagocytosis C)Osmosis D)Receptor-mediated endocytosis
Which of the following best describes the interaction between an enzyme and its substrate?
A. Part of the enzyme temporarily binds part of the substrate molecule. B. The enzyme temporarily deactivates the substrate. C. The enzyme surrounds and completely contains the substrate. D. The substrate surrounds and completely contains the enzyme.