Question 2.9 4 points possible (graded) In your final experiment, your goal is to study the correlation between ADP permeability and mitochondrial distribution. The following bar graph shows the Km (ADP) measured after cells were treated for 5 minutes with trypsin. 350 M 300 250 lin 200 150 0.3 M 0.5 UM 100 1uM O 50 0 1 2 3 4 The red bars correspond to the Km (ADP) of cardiomyocytes treated with increasing concentration of trypsin (0 to 1 mM), the blue bar represents the km(ADP) of untreated HL-1 cells. Based on these data and the results of previous experiments, what following statements are true (T) or false (F)? Trypsin treatment decreases oxidative phosphorylation O True False Trypsin treatment increases ADP permeability of mitochondria True False The distribution of mitochondria into untreated HL-1 cells and cardiomyocytes are similar True False Cytoskeletal proteins limit the import of ADP into mitochondria True False Question 3.2 3 points possible (graded) The intensity of the muscle activity determines how fast ATP must be produced. Mark the following statements as true or false. The energy to fuel a half-mile sprint comes primarily from fat True False The energy to fuel a marathon comes primarily from both carbohydrate and fat True False The speed at which even the fastest human could possibly run a 100-m dash is limited by the rate of mobilizing liver glycogen True False Submit You have used 0 of 2 attempts Save Question 4.1 1 point possible (graded) Glucagon and adrenaline lead to similar metabolic changes, but the release of these hormones is triggered by different stimuli. Which of the following statements are correct? (Select 2) Adrenaline and glucagon increase levels of circulating fatty acids. Adrenaline is released when the blood sugar level is low. Glucagon and adrenaline activate glycogen phosphorylase. Glucagon is released when the blood sugar level is high. Adrenaline reduces glucose uptake by adipose tissue