WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: where in the cell does beta oxidation take place?
Answer:
Fatt acetyl CoA molecules enter mitochondrial matrix and begin beta oxidation cycle
Q: what are the 3 products of beta oxidation?
Answer:
1 acetylCoA, 1 NADH, 1 FADH2
Q: how do we calculate the number of acetylCoA produced from a fatty acid?
Answer:
number of carbons in a fatty acid divided by 2
Q: how do we calculate the number of rounds it takes to break it down completely?
Answer:
one less than the number of acetylCoA moleules produced
,WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: how do we calculate the amount fo ATP produced?
Answer:
number of acetylCoA molecules mulitplied by 14
Q: what happens to the products of beta oxidation after they are produced?
Answer:
enter ETC for further ATP production
Q: how and why are ketone bodies produced?
Answer:
produced by breaking down fatty acids in liver cell's mitochondria; produced when
body has decreased carbs or increased fatty acids for energy needs. Ketones make 22
ATP each. **alternative energy form** ***Seen with Type 1 DM, starvation,
alcoholism***
,WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: what is the molecule use for fatty acid synthesis?
Answer:
acetyl-COA
Q: how is acetyl-COA exported from the mitochondria to the cytosol?
Answer:
must pair with oxaloacetate to make citrate, cross into cystol, break apart to become
acetylCOA again
Q: what is the comitted step of fatty acid synthesis?
Answer:
formation of malonyl COA by acteyl COA carboxylase **needs citrate and CO2**
Q: which fatty acid metabolism pathways are controlled by insulin?
Answer:
Insulin encourages lipogensis
, WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: which fatty acid metabolism pathways are controlled by glucagon?
Answer:
glucagon encourages lipolysis
Q: what are the components of the plasma membrane?
Answer:
phospholipids
Q: how do cells maintain fluidity of the plasma membrane when moved to colder or
warmer temperatures?
Answer:
ratio of saturated/unsaturated fatty acids acting as buffer
Q: what does it mean for a nutrient to be essential?
Answer:
must come from the diet
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: where in the cell does beta oxidation take place?
Answer:
Fatt acetyl CoA molecules enter mitochondrial matrix and begin beta oxidation cycle
Q: what are the 3 products of beta oxidation?
Answer:
1 acetylCoA, 1 NADH, 1 FADH2
Q: how do we calculate the number of acetylCoA produced from a fatty acid?
Answer:
number of carbons in a fatty acid divided by 2
Q: how do we calculate the number of rounds it takes to break it down completely?
Answer:
one less than the number of acetylCoA moleules produced
,WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: how do we calculate the amount fo ATP produced?
Answer:
number of acetylCoA molecules mulitplied by 14
Q: what happens to the products of beta oxidation after they are produced?
Answer:
enter ETC for further ATP production
Q: how and why are ketone bodies produced?
Answer:
produced by breaking down fatty acids in liver cell's mitochondria; produced when
body has decreased carbs or increased fatty acids for energy needs. Ketones make 22
ATP each. **alternative energy form** ***Seen with Type 1 DM, starvation,
alcoholism***
,WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: what is the molecule use for fatty acid synthesis?
Answer:
acetyl-COA
Q: how is acetyl-COA exported from the mitochondria to the cytosol?
Answer:
must pair with oxaloacetate to make citrate, cross into cystol, break apart to become
acetylCOA again
Q: what is the comitted step of fatty acid synthesis?
Answer:
formation of malonyl COA by acteyl COA carboxylase **needs citrate and CO2**
Q: which fatty acid metabolism pathways are controlled by insulin?
Answer:
Insulin encourages lipogensis
, WGU C785 BIOCHEMISTRY | WGU C785 Biochemistry Units 2-7
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: which fatty acid metabolism pathways are controlled by glucagon?
Answer:
glucagon encourages lipolysis
Q: what are the components of the plasma membrane?
Answer:
phospholipids
Q: how do cells maintain fluidity of the plasma membrane when moved to colder or
warmer temperatures?
Answer:
ratio of saturated/unsaturated fatty acids acting as buffer
Q: what does it mean for a nutrient to be essential?
Answer:
must come from the diet
