Metabolism Practice Questions
SUMMARY OF METABOLIC PATHWAYS
Fill in the missing compounds
Protein
Amino Acids
(Deaminated first)
Glucogenic AA’s
(3c skeletons)
Carbohydrate (Glycogen)
Fat (Triglyceride)
a. _________________
pyruvate
b. _________
c. _______________
d. __________________
Nonglucogenic AA’s
(2c or other skeletons)
Krebs – ETS
ATP
1. Glucose can be synthesized from
a. pyruvate, lactate, urea
b. pyruvate, glycerol, amino acids
c. acetyl CoA, glycerol, lactate
d. amino acids & fatty acids
2. Products of COMPLETE amino acid metabolism are:
a. pyruvate & ATP
b. ATP, urea, CO2, H2O
c. Urea, CO2, lactate
d. Acetyl CoA, ATP, CO2
3. The stored from of glucose is:
a. pyruvate
c. glycolysis
b. lactate
d. glycogen
4. The Krebs cycle is primarily a(n)
a. anabolic pathway
b. catabolic pathway
c. glucogenic pathway
5. The two components of triglyceride molecules are:
a. acetyl CoA and fatty acids c. fatty acids and glycerol
b. glycerol and amino acids
d. fatty acids and pyruvate
6. “Incomplete oxidation” is another way to describe:
a. Krebs cycle
b. electron transport system
c. deamination
d. glycolysis
7. Fatty acids must be converted to ____ before entering the Krebs cycle.
a. pyruvate
b. acetyl CoA
c. triglyceride molecules
d. ATP
8. The complete oxidation of triglyceride yields:
a. ATP, H2O, & CO2
b. ATP, CO2, and urea
c. Acetyl CoA, CO2, & H2O
d. Glycerol, CO2, ATP, & H2O
9. Urea is the product of amino acid deamination
a. true
b. false
10. The compound from which ketone bodies are synthesized is:
a. lactic acid
b. acetyl CoA
c. triglyceride
d. amino acids
Match the terms on the left with the appropriate phrase or term on the right.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
reconversion of lactate into glucose
hydrogen reservoir
anaerobic metabolic pathway
urea production
high levels occur with fasting
from within the body
a catabolic pathway
metabolic equilibrium
cellular location of glycolysis
molecule linking glycolysis & Krebs cycle
3-carbon amino acids
enters ATP-producing pathway at Acetyl CoA
an anabolic pathway
___ glycolysis
___ glycerol
___ acetyl CoA
___ glucogenic compound
___ lactate
___ Krebs cycle
___ mitochondria
___ cytosol
___ homeostasis
___ ketone bodies
___ Cori cycle
___ gluconeogenesis
___ fatty acid
24. The ATP producing power house of the cell
25. Component of TG used for glucose synthesis
___ endogenous
___ deamination