Question

5)Your cells can break down fats using fermentation or cellular respiration. a)true b)false

6])E. coli can do both fermentation and cellular respiration. You have two cultures of E. coli. You give them the same amount of food (glucose) and grow them at the same temperature. One culture is grown in open air, the other is placed in an oxygen free bag. The two cultures are growing at the same rate (producing new cells at the same rate). What is happening to the amount of glucose available to each culture?

a)Both cultures are using glucose at the same rate

b)The culture in the air is using glucose faster than the culture without oxygen

c) The culture without oxygen is using glucose faster than the culture in open air

Answer 1

5. False

Beta oxidation of fatty acids in mitochondria breaks down fats into acetyl CoA . Fermentation is a process in which carbohydrates such as glucose are broken down into lactic acid , alcohol or other products. Cellular respiration is a set of metabolic reactions that convert chemical energy from nutrients to adenosine tri phosphate ( ATP) . The stages of cellular respiration are glycolysis, Citric acid cycle , electrons transport chain and oxidative phosphorylation.