Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
What is the second stage of respiration called? |
The Link Reaction |
|
|
During glycolysis six carbon glucose molecule is broken down in a series of reactions to form two molecules of pyruvate which has _____ carbon atoms Fill in the blank. |
Three |
|
|
After glycolysis, what reaction takes place if oxygen is absent and where does this reaction occur in the cell? |
Anaerobic respiration in cytoplasm |
|
|
After glycolysis, what reaction take place when oxygen is present and where does it take place in the cell? |
Aerobic respiration in mitochondria |
|
|
What is the internal region of a mitochondrion called? |
The mitochondrial matrix |
|
|
Do mitochondria have a single or double membrane? |
Double |
|
|
Where do the remaining reactions of respiration occur after glycolysis? |
The mitochondria |
|
|
What happens in the next stage of respiration after glycolysis? |
The pyruvate molecules produced by glycolysis are actively transported from the cytoplasm into the mitochondrial matrix. The pyruvate molecules take part in the link reaction. |
|
|
What is the word equation for the link reaction? |
Pyruvate + coenzyme A —-> acetyl coenzyme A + carbon dioxide |
|
|
At the same time if the link reaction what is happening? |
An oxidation reaction forming a molecule of reduced NAD |
|
|
Why does the link reaction take place twice? |
Because glycolysis produces two pyruvate molecules for each glucose molecule so the reaction occurs twice for each pyruvate molecule |
|
|
What are the three products which are produced by the link reaction? |
one molecule of acetyle enzyme A, one molecule of carbon dioxide and one molecule of reduced NAD |
|
|
Per glucose, the link reaction produces ___ molecules of acetyl coenzyme A, ___ molecules of carbon dioxide and ___ molecules of reduced NAD. Fill in the blanks. |
two, two, two |
|
|
During the link reaction, what is released from the pyruvate? |
a molecule of carbon dioxide |
|
|
What does a decarboxylation reaction consist of? |
carbon dioxide being removed from a molecule |
|
|
What is a reaction called where an oxidation reaction and decarboxylation reaction occur at the same time? |
Oxidative decarboxylation |
|
|
Does the link reaction require oxygen? |
No |
