People with sickle cell disease often experience episodes of severe pain in their joints, chest, and abdomen and swelling in their hands and feet. using what you know about the function of blood, why do you think the abnormal shape of sickled red blood cells causes these symptoms?

Can happen anywhere along the spine if the neural tube does not close all the way. the backbone that protects the spinal cord does not form and close as it should. this often results in damage to the spinal cord and nerves. a) cleft palate b) spina bifida c) encephalocele d) down's syndrome

Which two molecules generated by the krebs cycle pass their high-energy electrons to the electron transport chain? a. nadh b. c6h12o6 c. fadh2 d. nad+

How much does one sucrose molecule weigh in grams?