Which of the following statements is true? a. Plotting the rate of facilitated transport against substrates gives a sigmoidal curve b. Facilitated carrier proteins can be saturated by substrates c. Both A and B d. Neither A nor B
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
Which of the following statements is true?
a. Plotting the rate of facilitated transport against substrates gives a sigmoidal curve
b. Facilitated carrier proteins can be saturated by substrates
c. Both A and B
d. Neither A nor B
The catalytic triad of chymotrypsin and other serine proteases consists of _________
A. three subunits of the enzyme.
B. three amino acid residues close enough in space to make serine a strong nucleophile.
C. three enzymes with very similar structural features.
D. three amino acid residues adjacent in the primary structure which act to make serine a strong nucleophile.
E. None of the above.
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