One of the most important buffer pairs in blood is carbonic acid and bicarbonate because they regulate the pH of blood by absorbing and releasing hydrogen ions as needed

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Tryptophan must be ______ when tryptophan repressor molecules are inactive.

A. Present B. Absent

Biology & Microbiology

All mature polypeptides contain a methionine at the N-terminus

Indicate whether the statement is true or false

Biology & Microbiology

What type of thinking is required?

What will be an ideal response?

Biology & Microbiology

In cells that are constantly involved in secretion, an equivalent amount of membrane must be returned

to the interior of the cell for each vesicle that fuses with the plasma membrane; if this does not occur, then what would happen? a. The ratio of cell surface would decrease, compared to cell volume. b. The cell surface would shrivel. c. The surface area would remain constant. d. The number of membrane receptor proteins would decrease. e. The cell surface will keep expand

Biology & Microbiology