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6. What is a function for glyceraldehyde 3-phosphate

  • It acts as an intermediate in glycolysis and gluconeogenesis
  • It acts as an intermediate in lipolysis
  • It acts as an intermediate in the TCA cycle

7. Fat oxidation can be summarised into three simple steps. What is the 3rd step?

  • Fatty acids are broken down step by step to acetyl CoA to enter the TCA cycle.
  • Lipids must be mobilised from adipose tissue. TAG is degraded to fatty acids & glycerol
  • Lipids must be mobilised from adipose tissue. TAG is degraded to fatty acids & glycerol

8. Which of the following best describes beta oxidation?

  • The oxidation of fat molecules using Beta enzymes
  • The sequential removal of 2 carbon fragments from a fatty acid
  • The adding of oxygen molecules to triglyceride compounds

9. Transport of FFA across the cell membrane into muscle cells occurs through:

  • Active cotransport
  • Diffusion
  • Facilitated diffusion
  • Active transport

10. Fat oxidation can be summarised into three simple steps. What catalyses the reaction in the first step

  • Hormone sensitive lipase
  • Fatty acyl-CoA synthase
  • Lipolase

11. Fat oxidation can be summarised into three simple steps. What is the 2nd step?

  • Fatty acids must be taken into the cell, activated and transported into the mitochondria for further degradation.
  • Lipids must be mobilised from adipose tissue. TAG is degraded to fatty acids & glycerol
  • Fatty acids are broken down step by step to acetyl CoA to enter the TCA cycle.

12. What happens to the glycerol compounds formed in the breakdown of triglycerides

  • They are absorbed by the liver
  • They are absorbed into the bloodstream
  • They are immediately recycled and used for the reesterification of triglycerides

13. FFA are converted to CoA derivative in preparation for Beta Oxidation. What else does this priming reactin require?

  • Oxygen
  • Carbon dioxide
  • ATP
  • Water

14. Fat oxidation can be summarised into three simple steps. What is the 1st step?

  • Lipids must be mobilised from adipose tissue. TAG is degraded to fatty acids & glycerol
  • Fatty acids must be taken into the cell, activated and transported into the mitochondria for further degradation.
  • Fatty acids are broken down step by step to acetyl CoA to enter the TCA cycle.