A. the activation energy barrier cannot be surmounted in most of the starch molecules. B. the hydrolysis of starch to sugar is endergonic. C. the starch solution has less free energy than the sugar solution. D. starch hydrolysis is nonspontaneous. E. starch cannot be hydrolyzed in the presence of so much water.
COPD can be diagnosed in adults as early as their 20's and 30's, but COPD diagnosis in people in their 40's is on the rise, says Dr. Neil Schachter, medical director of respiratory care at Mount Sinai Medical Center in New York City. More than 12 million people in the United States have COPD. 2  Another 12 million have COPD but go undiagnosed. 3  COPD is the fourth leading cause of death in the U.S. and the only one in the top ten on the rise. 4  It is estimated that 80-90% of COPD cases are due to smoking.
Puberty starts on average in girls between ages 8 and13 and in boys between ages 9 and 14. Doctors diagnose early puberty when this normal process starts early and continues to progress through growth spurts and bone maturation, usually for reasons we don't understand.here are other conditions that might look like early puberty to parents -- and sometimes even to pediatricians -- but aren't. 1  Premature thelarche is early breast development at a young age. 2  It often appears in girls who are just a few years old.