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BME 2104
Exam #2
36
Biology
Undergraduate 2
03/10/2011

Additional Biology Flashcards

 


 

Cards

Term
Hypertension
Definition
High Blood Pressure
Term
Stroke
Definition
stroke is an interruption of the blood supply to any part of the brain. A stroke is sometimes called a "brain attack."
Term
Ideal Weight
Definition

20%> then ideal is Obese

 

Defined by Body Mass Index==W/H2

Term

Glycolysis Step #1

 

Preperation and Cleavage

Definition

 

Glucose + 2ATP à 2 G-3-P + 2ADP

glyceraldehyde-3-phosphate (G-3-P)

 

Energy Expindenture

Term

Glycolysis #2

 

Oxidation and ATP Generation

Definition

G-3-P + NAD+ + ADP + Pi   à  
3-phosphoglycerate + NADH  + H+ + ATP

 

 

Term

 

substrate-level phosphorylation (moving the phosphate) 

 

Definition
The direct transfer of a phosphate from the substrate to ADP to yield ATP 
Term

Glycolysis #3

 

Pyruvate formation and ATP generation

Definition

 

3-phosphoglycerate + ADP à pyruvate + H2O + ATP

 

Term
Net Glycolysis
Definition

 

Glucose +2NAD+ + 2ADP + 2Pi   à

2 pyruvate + 2NADH + 2H+ + 2H2O + 2ATP

 

Term
Net Glycolysis Reactents
Definition
Glucose +2NAD+ + 2ADP + 2Pi
Term
Net Glycolysis Products
Definition

2 pyruvate + 2NADH + 2H+ + 2H2O + 2ATP

Term
coenzyme A
Definition
Term
acetyl-CoA
Definition
Term
Fermentation 
Definition

Takes place in absence of O2

 

Costs you NADH from glycosis

Term
acetaldehyde
Definition
Term
alcohol
dehydrogenase
Definition
Term
lactate
Definition

Lactate is metabolized in the heart and in the liver

Term
The Cori Cycle
Definition

1.Lactate to Liver

2. Liver makes it glucose

3. Glucose to Muscle

Term
Gluconeogenesis
Definition

Making new Glucose

 

Generally from Lactate

Term

 

Glycogen

 

Definition

A substance for storing “energy” as a carbohydrate in muscle and the liver

  • Just polymerized glucose
  • Can be removed and then sent to glycosis

Term
Aerobic respiration
Definition

Occurs in the mitochondrion in eukaryotes

 

2 Steps

Term

Aerobic respiration

Step #1

Definition

Tricarboxylic acid (TCA) cycle

 generate NADH

entry point for amino acids into metabolism

Term

 

 

Aerobic respiration

Step #2

 

 

Definition

Oxidative phosphorylation 

  • a.k.a. electron transport
  • create a proton gradient by reduction of NAD/FAD
  • use the proton gradient to drive synthesis of ATP


Term
TCA cycle: entry
Definition

Pyruvate is oxidized and two of its three carbons linked to Coenzyme A, yielding
1 NADH, 1 CO2 and acetyl CoA.

Acetyl CoA donates these two carbons to oxaloacetate with the hydrolysis of water to yield citrate.

Term

TCA cycle: NADH and ATP generation

#2

Definition

 

Subsequent steps oxidize the molecule to yield NADH and, at one point, GTP.
Also makes CO2
The GTP may or may not be used to generate ATP.

 

Term

TCA cycle: FAD 

#3

Definition

FAD is used as an electron acceptor at one point in the cycle, yielding FADH2

Flavin adenine dinucleotide

Term
TCA cycle: the complete reaction
Definition

acytyl CoA + 3H2O + 3NAD+ + FAD + ADP + Pi à

CoA + 2CO2 + 3 NADH + 3H+ + FADH2 + ATP + H2O

Term

TCA cycle: What we have per Glucose

Definition

4 ATP

10 NADH

2 FADH2

 

 

Term
Oxidative Phosphorylation
Definition
NADH and FADH2 used to make ATP
Term

Electron Transport System

 

--

 

Respiratory Complexes

Definition

Use NADH and FADH2 to pump electrons through the inside of membrane, driving protons up their [] gradient


1 NADH moves 10 H+      complexs 1 3 4

1 FADH2 moves 6 H+      complexs 2 3 4

 

F1F0 ATPase takes the protons down the gradient 3 H+ == 1 ATP

Term
Oxidative phosphorylation overview
Definition

Per glucose:
10 NADH + 10 H+ + 5O2 + 30ADP + 30Pi -->
10 NAD
+ + 40H2O + 30ATP
2 FADH2 + O2 + 4ADP + 4Pi -->
2FAD + 2H
2O + 4ATP

Term
Complete overview
Definition

C6H12O6 + 6O2 + 38ADP + 38 Pi à 6CO2 + 38 ATP + 44 H2O

1 glucose theoretically yields 38 ATP

All but 2 of the ATP come from Mitochondrial Matrix

Term
Catabolism
Definition
Break down of Amino Acids
Term
Anabolism
Definition
Synthesis of Amino Acids
Term

The Metabolic Cycle has points for 

 

using and producing amino acids

Definition
Can make acetyl CoA and Citrate
Term

β-oxidation of fats

 

β carbon

Definition

 

A series of oxidation reactions allows CoA to be linked to the carboxyl group on fatty acids.
Cleavage at the β carbon yields acetyl-CoA, which feeds directly into TCA (Gives CoA two carbon groups, alpha and beta)
The process also yields NADH and FADH2

 

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