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.
Most people start going through puberty when they are between 10 and 14 years old, but this isnât the case for everyone. Itâs perfectly normal to start puberty under 10 or over 14. Most people who are assigned female at birth (AFAB) start puberty when they are between 8 and 13 years old. Most people who are assigned male at birth (AMAB) start puberty when they are between 10 and 15 years old. If you have a disability, you might find puberty begins earlier or later for you than it does for others.