Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Biochemistry Matthew

Study flash cards for exam # 3 October 30th, 2009

QuestionAnswer
Enzymes that transfer phosphate groupsd from one molecule to another are known qs phosphioreductases. T/F False
Physiolof]gically irreversible reactions are those that proceed with a relatively large overall gain in energy? False. The loss in energy is not enough energy to go back the other way.
The reactions of glycolosis occur only in specialized tissure sucj as the liver. False
Pyruvate dehydrogenase is the enzyme that converts pyruvic acid to phospho-enol pyruvate. False
The rates of enzyme catalyzed reactions are influnced by the temperature. True
Moleculal oxygen is a stronger oxidizing agent than NAD+ True
Glycolosis does not involve any oxidation-reduction reactions. False
Lipoic acid is a B vitamin. False.
Glucose can react directly with O2 to become CO2 and H20. True
Occaasionaly, there are biological reactions where ATP gets hydrolyzed directly to AMP. True
Anytime something gets oxidized, something else has to get reduced. True
It is possible to have comkpetitive enzyme reducers. False. They would have to go into the same spot as the substrate, therefore would not activate.
Carbohydrates contain morfe energy than fats becausew they are more oxidized. False.
In mammalian cells, lactic acid can't be oxidized under anaerobic conditions. True
The TCA cycle can be thought of as the central core of metabolism. True
The TCA cycle can be thought of as the central core of metabolism. Ture
Un-catalyzed chemical reaction rates get faster as the temperature is increased. Ture
The manufacturers of Theragram M claim that this multi-B vitamin product helps to "unlocl" the enwegy of your food. This claim is metabolically valid. True
Five coenzymes, or cofactors, are required to convert alpha keto glutarate to succinyl CoA. True. TPP, Lipoic Acid, CoA, FAD and NAD+
Enzyme catalyzed reactions get faster in direct proportion to the concentration of substrate. False. Should be [E].
Dehydrogenases are enzymes that catalyze the transfer of electrons from one molecule to another. True
Anaerobic metabolism and be damaging to a cell. Ture
Increasing the reaction temperature of a chemical reaction makes activation energy for that reaction more readily available. True
Most, if not all, of the water, when glucose is oxidized to CO2 and H2O, is produced in the TCA cycle. False
Body stores of carbohydrates are sufficient to meet the needs of the body for caloric energy for about 3 months. False
Non-competitive inhibitors of enzymes inhibit the enzyme by binding to an inhibitor binding fite on the enzyme that is different from the substrate binding site (active site). True
Pyruvate dehydrogenenase is a multi-enzyme complex. True
The TCA cycle is shysiologically reversible. False
ATP contains a B vitamin as part of its structure. False
Co-enzymes are proteins False
Oxidative phosphorylationj is a membrane transport process. True
Created by: loflyer52
Popular Biochemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards