Which is the omega carbon in this fatty acid?
A, The carbon closest the carboxyl group is the alpha carbon
Which of the following vitamins does not travel through the bloodstream in the form of a lipid micelle?
Vitamin C
Which lipid has a 4-ring structure?
sterol
Which of the following situations is MOST likely to increase the rate of beta oxidation?
Fasting
A patient who is on a no-fat diet is at particular risk of deficiency in:
Vitamin A
During starvation, triglycerides can help supply some of the body's glucose needs. Which breakdown product of triglycerides can be used to make glucose?
glycerol
Which of the following components would you find in a cellular (fluid mosaic) plasma membrane?
B
Which of the following lipid structures is used to increase membrane fluidity?
B
Which is likely to be liquid at the lowest temperature?
CH3(CH2)3CH=CH(CH2)2CH=CH(CH2)3COOH
Which of the following accurately describes the steps involved in fatty acid synthesis?
Acetyl-CoA is transported to the cytoplasm ---> Biotin transfers a carboxylate group to acetyl-CoA --> The malonyl group is transferred to a carrier protein --> malonyl ACP combines with acetyl-CoA, --> malonyl-CoA is added repeatedly to the growing fatty
Which of the following fatty fatty acids will produce 8 Acetyl CoA molecules after it is completely metabolized via beta oxidation?
CH3(CH2)4CH=CH(CH2)8COOH
Which of the following fatty acids is polyunsaturated?
C-This fatty acid contains two double bonds and is, therefore, polyunsaturated.
How many rounds of beta oxidation are needed to break down the pictured fatty acid?
8, he fatty acid illustrated has 18 carbons. It can be broken into 9 two-carbon acetyl CoA molecules, which will require 8 rounds of beta oxidation.
Where in the fatty acid does beta oxidation occur?
S
Which set of molecules are produced by the beta oxidation of fatty acids?
Acetyl CoA, NADH, FADH2
Gastric bypass surgery results in an increase in the production of GLP-1, a peptide that promotes insulin secretion. This is thought to be associated with the tendency for these patients' type II diabetes to resolve after the surgery. If a gastric bypass
This patient would have reduced insulin secretion compared to patients with normal GLP-1, and this reduction results in increased fatty acid oxidation.
Through mandatory state testing, a 2-day-old newborn is found to have medium chain acyl-CoA dehydrogenase deficiency (MCADD). This enzyme deficiency interferes with the baby's ability to break down medium chain fatty acids via beta oxidation. Her parents
She will not be able to utilize adipose tissue for ATP production as effectively as a baby without the disorder
Which of the following contributes to the development of ketoacidosis in a diabetic patient?
A reduction in citric acid cycle intermediates, which decreases the amount of oxaloacetate that acetyl-CoA can combine with to enter the citric acid cycle.
Which of the following is an essential fatty acid?
D, This fatty acid contains an omega-6 double bond that cannot be synthesized by our cells and is therefore, essential.
Which of the formulae below describes a saturated fatty acid?
C16 H32 O2
Unsaturated fatty acids can have different arrangements of hydrogen atoms at the double bond depending on whether the bonds are cis- or trans-configuration. A consequence of this is that_________________.
fatty acids with cis-configuration double bonds do not pack together well which lowers their melting point.
Which best describes fatty acid hydrogenation?
Hydrogenation converts some unsaturated fatty acids into saturated fatty acids.
Phospholipids have parts that are hydrophobic (non-polar, not soluble in water) and a part that is hydrophilic (polar; water-soluble)? What term do we use to describe a molecule that is both polar and non-polar?
Amphipathic
Which compounds make up the greatest reserves of energy in our bodies?
Triglycerides
Which of the following structures can be used as a precursor for the synthesis of eicosanoids?
A