Adding a phosphate group to adenosine forms
A) ADP.
B) ATP.
C) AMP.
D) 2ATP.
E) ribose.
Answer: C
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The peptide ________ may play a role in the positive feedback of estrogen on GnRH secretion.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is NOT true?
a. In the ECF, Na+ is accompanied primarily by Cl- and to a lesser extent by HCO3-. b. In the ICF K+ is accompanied by PO43-. c. In most organisms Na+ is the primary ion in the ICF. d. A fluid compartment found in all animals is produced by the digestive tract. e. All plasma constituents except proteins are freely exchanged between plasma and interstitial fluid.
Which of the following statements about the duodenum is not true?
A. It receives chyme from the stomach. B. It contains a brush border. C. It receives bile from the liver. D. It receives secretions from the pancreas. E. It is longer than the jejunum.
Explain why enzymes are often called organic catalysts
What will be an ideal response?