Question

You are running a 100 km ultramarathon. At around 50 km into the race, you have...

You are running a 100 km ultramarathon. At around 50 km into the race, you have depleted your glycogen stores but are still running aerobically. Fatty acid oxidation, the citric acid cycle and the electron transport chain are the main metabolic processes occurring. What product of fatty acid oxidation would inhibit glycolysis?

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

This happens through Randle cycle. Randle cycle refers to the significant reduction in the uptake and utilization of glucose that occurs in the muscle when fatty acid oxidation is intense. This phenomenon is explained as follows: the oxidation of fatty acids yields acetyl-CoA from which citrate is generated by the action of citrate synthase via Kreb`s cycle. High values of acetyl-CoA/CoA and NADH/NAD+ ratios stimulate pyruvate dehydrogenase kinase, which phosphorylates and inactivates PDH. ATP and citrate inhibit phosphofructokinase, with the accumulation of substrates from previous stages, including G-6-P, which has an inhibitory effect on hexokinase. This depresses glycolysis.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
force times distance Question 48 Soccer (assuming field player) is a sport which is 90% aerobic....
force times distance Question 48 Soccer (assuming field player) is a sport which is 90% aerobic. True False Question 50 Glucose is necessary for fatty acid oxidation because... its derivative, pyruvate, is condensated with carbonic acid to form oxaloacetate, which in turn is a necessary carbon compound in the citric acid cycle it is needed to convert fatty acids to fatty acyl-CoA which in turn is oxidized to acetyl CoA glucose is decarboxylated into cytochrome oxidase which is a necessary...
1. Which of the following accurately compares fatty acid synthesis and fatty acid oxidation? All of...
1. Which of the following accurately compares fatty acid synthesis and fatty acid oxidation? All of the statements are accurate comparisons. Both processes require oxidized electron carriers. Both processes occur in liver cells. Both processes produce NADH. 2. When an inhibitor binds to electron transport chain complex IV, what effect(s) is/are produced? Select ALL. decreased rate of citric acid cycle reactions decreased rate of O2 consumption blockage of electron transport increased rate of protons pumped into the IM space 3....
1. Which of the following is a catabolic reaction? assembly of proteins synthesis of lipids operation...
1. Which of the following is a catabolic reaction? assembly of proteins synthesis of lipids operation of the sodium-potassium pump breakdown of carbohydrate chains 2.Match the process or chemical with its description. oxidizes NADH without using the electron transport chain produces CO2 as a byproduct site of glycolysis accepts electrons from NADH and FADH2 removal of electrons from a chemical site of the electron transport chain breaks down fatty acids from lipids into acetyl-CoA yields acetyl-CoA and CO2 generates ATP...
Select the best answer. The source(s) of electrons (i.e. the reduced cofactors) for the Electron Transport...
Select the best answer. The source(s) of electrons (i.e. the reduced cofactors) for the Electron Transport Chain include(s): 1. Glycolysis 2. Gluconeogenesis 3. Pyruvate Dehydrogenase Complex Reaction 4. Citric Acid Cycle 5. Fatty Acid β-Oxidation A. 1, 3, 4 B. 2, 3, 4 C. 1, 3, 4, 5 D. 2, 3, 4, 5 E. 1, 2, 3, 4, 5 F. 1, 5
1. Actin filaments and microtubules have certain similarities. Which one of the following statements would NOT...
1. Actin filaments and microtubules have certain similarities. Which one of the following statements would NOT be a similarity between acting filaments and microtubules? a. They are both formed from globular protein monomers. b. They are both unstable and can form and then fall apart. c. They both involved bidding of a nucleotide triphosphate. d. They both form a hollow tube-like structure. 2. Which of the following characteristic is NOT TRUE regarding the function and structure of the enzyme ATP...
1. You are taking this test while breathing in molecular oxygen (O2) and breathing out carbon...
1. You are taking this test while breathing in molecular oxygen (O2) and breathing out carbon dioxide (CO2). The CO2 arises from: Select one: a. Glucose in glycolysis. b. Redox reactions involving NAD+ and NADH in the mitochondria. c. More than one of the above answer options is correct. d. None of the above answer options are correct. e. The oxidation of small molecules by the krebs (or citric acid) cycle. 2. Water: Select one: a. More than one of...
1. in beta oxidation, a 16 carbon fatty acid would give how many NADH? a) 7...
1. in beta oxidation, a 16 carbon fatty acid would give how many NADH? a) 7 b) 8 c) 9 d) 10 2. which enzyme is not replaced if gluconeogenesis is occurring instead of glycolysis? a) phosphofructokinase b) pyruvate kinase c) aldolase d) hekinase 3. phosphofructokinase is regulated by ____ in a negative manner. a) ADP b) NAD+ c) calcium d) citrate 4. how many NADH are oxidized in the electron transport chain from glycolysis under anaerobic conditions (per glucose)?...
PLEASE ANSWER ALL. In the mitochondria the free fatty acids are converted by _______ into acetate...
PLEASE ANSWER ALL. In the mitochondria the free fatty acids are converted by _______ into acetate molecules. Beta-oxidation Anabolic pathways Bacteria Glycolysis Metabolism refers to the entire network of chemical processes involved in maintaining life. It encompasses all the sequences of chemical reactions that occur in the body. All the reactions can be categorized as one of two classes: One class, the _____ pathways, put different molecules together while the other class ______ pathways takes molecules apart/ Anabolic, catabolic glycolytic,...
1. The production of _______________ generated billions of years ago by a key by-product of photosynthesis...
1. The production of _______________ generated billions of years ago by a key by-product of photosynthesis allowed the earth to filter out harmful radiation, allowing life to live on land. Select one: amino acids ozone (O3) carbohydrates H2O triglycerides 2. In aerobic respiration, most of the ATP are produced here: Select one: via fermentation glycolysis Krebs Cycle electron transport chain conversion of pyruvate to acetyl Co-A 3. The process of fermentation does not produce as much ATP as aerobic respiration...
What two factors determine the BMI for an individual? bone structure and height weight and height...
What two factors determine the BMI for an individual? bone structure and height weight and height height and age waist size and height weight and age 2. If a person wants to lose weight, which of the following are viable strategies? Select the TWO answers that are correct. eating the same number of calories, but eating them all as fruit and veggies instead of burgers and fries substituting plain water for regular soda exercising more adding more fruits and veggies...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT