DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
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Course
DHN 311
Institution
DHN 311
DHN 311 Exam Tested Questions
Reviewed And Revised
With Correct Answers
Already Passed!!
1. The steroid hormones included.... - ANSWER
2. mineralocorticoids
3. sex hormones
1. glucocorticoids
2. _____ is the precursor for all of these steroid hormones. - ANSWER
cho...
DHN 311 Exam Tested Questions
Reviewed And Revised
With Correct Answers
Already Passed!!
1. The steroid hormones included.... - ANSWER 1. glucocorticoids
2. mineralocorticoids
3. sex hormones
2. _____ is the precursor for all of these steroid hormones. - ANSWER
cholesterol
3. An example of a glucocorticoid is ____. - ANSWER cortisol
4. An example of a mineralocorticoid is _____. - ANSWER aldosterone
5. Examples of sex hormones are ____ and ____. - ANSWER 1. androgens
2. estrogens
6. The mineralocorticoids and glucocorticoids are made in the _____ cortex. -
ANSWER adrenal
, 7. The sex hormones are made in the ovaries, placenta and _____. - ANSWER
testes
8. Where does fatty acid synthesis occur (tissues and section of the cell)? -
ANSWER occurs in the liver, mammary glands and adipose tissue
in the cytosol
9. When does fatty acid synthesis occur? - ANSWER it occurs in the FED state
10. Which hormones promote and inhibit FAS? - ANSWER insulin: promotes
glucagon: inhibits
11. What is the role of Acetyl CoA Carboxylase?
Acetyl CoA Carboxylase is needed to carboxylize acetyl CoA to malonyl CoA -
ANSWER acetyl CoA carboxylase is needed to carboxylic acetyl CoA to
malonyl CoA
12. How is ACC regulated? - ANSWER ACC is unregulated by insulin
13. What are the steps (4) involved in the fatty acid synthase system and what is
happening in each - ANSWER 1. condensation: losing CO2
2. reduction: donating hydrogen (removing a double bond)
3. dehydration: removing water (forming a double bond)
4. reduction: donating hydrogen to remove a double bond
,14. What is the final end product of FAS? - ANSWER the end product is
palmitic acid
15. What can happen to the end product of FAS once it is formed? - ANSWER
once it is formed it can be elongated in the smooth ER
16. What kind of enzymes are involved in the elongation of palmitic acid? -
ANSWER the enzymes involved are malonyl CoA and NADPH
17. The fatty acid chains are synthesized by incorporating carbons from _____,
using ATP and _____. - ANSWER acetyl CoA
NADPH
18. Fatty acid synthesis takes place in the ____ state in response to the hormone
_____ being released. - ANSWER FED
insulin
19. Excess carbohydrates and proteins can be converted to ____ and stored as
triacylglycerol/triglycerides. - ANSWER fat
20. In order for excess carbohydrates and proteins to be used for fatty acid
synthesis, they need to first be converted to ______, which takes place in the
______. - ANSWER acetyl CoA
mitochondria
Excess carbohydrates are converted to acetyl CoA by _____ converting glucose to
pyruvate and then pyruvate being converted to _____. - ANSWER glycolysis
, acetyl CoA
Amino acids are converted to acetyl CoA by entering into the ______ at various
points to eventually generate____. - ANSWER citric acid cycle
citrate
Fat that is consumed as part of a meal is stored as ___ in ___ tissue. - ANSWER
fat
adipose
The first step of fatty acid synthesis involves transferring mitochondrial _____ to
the ____ of the cell. - ANSWER acetyl CoA
cytosol
Because acetyl CoA cannot simply cross the inner mitochondrial membrane it has
to be converted into ____ so that it can travel to the cytosol for _______. -
ANSWER citrate
fatty acid synthesis
Once the acetyl coA is in the cytosol and available for fatty acid synthesis it then
participates in a reaction with the enzyme ________ (a.k.a. ACC) and forms
______. - ANSWER acetyl CoA carboxylase
malonyl CoA
Fatty acid synthesis begins with two units of ______. - ANSWER acetyl CoA
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