In a catalyzed reaction a reactant is often called a _______.

Fill in the blank(s) with the appropriate word(s).


Ans: Substrate

Biology & Microbiology

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To determine the isoelectric point of a protein, first establish that a gel:

A) contains a denaturing detergent that can distribute uniform negative charges over the protein's surface. B) exhibits a stable pH gradient when ampholytes become distributed in an electric field. C) is washed with an antibody specific to the protein of interest. D) neutralizes all ionic groups on a protein by titrating them with strong bases. E) relates the unknown protein to a series of protein markers with known molecular weights

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The typical lesion of secondary syphilis is

A. a painless reddened lesion called a chancre at the site of infection. B. gummas in bones, in nervous tissues, or on the skin. C. a generalized rash. D. purulent sore throat. E. the development of buboes in the lymph nodes at the site of infection.

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How does the fact that the mosquito is often a vector of disease relate directly to its method of

obtaining food?

What will be an ideal response?

Biology & Microbiology

Your thigh bone, the largest bone in your body, is called the ________

A) tibia B) femur C) fibula D) pelvis

Biology & Microbiology