Metabolism Flashcards Preview

Biochem > Metabolism > Flashcards

Flashcards in Metabolism Deck (31)
Loading flashcards...
1
Q
Utilizing compounds for the generation of energy
A
Catabolism
2
Q
Utilization of energy to produce compounds
A
Anabolism
3
Q
What is a major intermediate in several pathways of energy production?
A
Acetylene-CoA
4
Q
Pentose Phosphate Pathway
A
Generates NADPH,
Generates 5 carbon sugars for nucleotides
5
Q
Glycolysis
A
Glucose to pyruvate, important side products in some tissues (Glycerol-3-phosphate, 2,3-bisphosphoglycerate)
6
Q
Gluconeogenisis
A
Synthesis of glucose from pyruvate (non-carb sources).
Restricted to the liver/kidney
7
Q
Source from carbs in glycoproteins and ptoteoglycans
A
Glucose
8
Q
Source of glucuronides
A
Glucose (very active in the liver). Makes poorly soluble compounds more soluble in aqueous environment, thus more easily extracted. Active on bilirubin and drug substrates.
9
Q
What is Acetyl-CoA a substrate for?
A
TCA cycle, Lipogenesis, Cholesterol synthesis, Ketone bodies
10
Q
What are the two end fates for amino acids?
A
Elimination as urea, reutilization to form another amino acid
11
Q
What is the main source of nitrogen for the body?
A
Amino Acids
12
Q
Where does gluconeogenesis occur?
A
Kidneys/Liver
13
Q
What type of metabolism can RBCs not utilize?
A
Aerobic carbohydrate metabolism
14
Q
In what areas of the body is glycogen mainly found?
A
Muscle and liver
15
Q
In what areas of the body are triglycerides mainly found?
A
Adipose tissue
16
Q
What macros do phospholipids require?
A
Lipids, carbs, amino acids
17
Q
What macros do nucleotides require?
A
Carbs, amino acids
18
Q
Where does fatty acid oxidation occur?
A
Inside the mitochondria
19
Q
Where does fatty acid synthesis occur?
A
Inside the cytosol
20
Q
How many essential carbs are there?
A
None
21
Q
What type of fiber increases stool bulk and decreases transit time?
A
Cellulose and hemicellulose
22
Q
What type of fiber Increases stool bulk and binds cholesterol/carcinogens?
A
Ligins
23
Q
What types of fiber decrease the rate of gastric emptying/carb absorption/serum cholesterol?
A
Pectin and gums
24
Q
What is the "recommended" daily protein intake?
A
0.8 g/kg
25
Q
Which amino acid is considered essential for children?
A
Arginine
26
Q
When would an individuals have a positive nitrogen balance?
A
Growth, convalescence
27
Q
When would an individuals have a negative nitrogen balance?
A
Starvation, diseases, severe burns
28
Q
2 Essential fatty acids
A
Linoleic acid (_6) and LinoleNic acid (_3)
29
Q
Fats aid in absorbtion of what?
A
fat soluble vitamins
30
Q
Marasmus
A
Extreme emanciation from prolonged negative energy balance. Loss of protein from muscle/liver/heart/kidneys
31
Q
Kwashiorkor
A
Diet with adequate calories but inadequate protein.