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;
47 Cards in this Set
- Front
- Back
|
Which is an enzyme? |
Sucrase. |
|
|
Which is a catalyst? |
Sucrase. |
|
|
How many times faster does an enzyme speed up a chemical reaction? |
At least a million times. |
|
|
Which is a characteristic of an enzyme? |
They are not used up in the reaction that they catalyze. |
|
|
Which phrase defines “reduced”? |
Electrons added. |
|
|
The energy stored in carbohydrates must be converted into which before it can be used to do cellular work? |
ATP. |
|
|
What are the three parts of an ATP molecule? |
Adenine, 3 phosphate groups, and ribose. |
|
|
How many high energy phosphate bonds are in one molecule of ADP? |
1. |
|
|
How many phosphates are in one molecule of AMP? |
1. |
|
|
How is energy released from an ATP molecule? |
By breaking off 1 or 2 phosphate groups. |
|
|
What organelle uses the energy in glucose to join a phosphate group to ADP to form ATP? |
Mitochondrion. |
|
|
Which is the smallest? |
ADP. |
|
|
How many nucleotides are found in NAD+? |
2. |
|
|
Which molecule has the most energy? |
ATP. |
|
|
What is the correct order in aerobic respiration? (ETC=electron transport chain, G= glycolysis, KC= Krebs Cycle, and PO= pyruvate oxidation?) |
G->PO->KC->ETC |
|
|
Which is a reduced coenzyme carrying 2 electrons and 2 protons? |
FADH2. |
|
|
Which is true about FAD? |
It is a coenzyme. |
|
|
Complete this respiration equation: C6H12O6 + _______ -> 6CO2+6H2O+ energy. |
6O2 |
|
|
Which molecules is not involved with aerobic respiration? |
Ethanol. |
|
|
Which molecule has 4 carbon atoms? |
Oxaloacetate. |
|
|
What 6 carbon molecule is produced in the Krebs Cycle when Acetyl CoA adds its acetyl group to oxaloacetate? |
Citrate. |
|
|
What is true about glycolysis? |
It requires many enzymes. |
|
|
Which summary reaction represents pyruvate oxidation? |
pyruvate -> Acetyl CoA |
|
|
How many NADH molecules are produced when one glucose molecule undergoes glycolysis? |
2. |
|
|
What is produced during pyruvate oxidation? |
CO2 and NADH. |
|
|
How many carbon atoms are in the acetyl group on one acetyl-CoA molecule? |
2. |
|
|
How many FADH2 molecules are produced during the Krebs Cycle when one glucose molecule undergoes aerobic cellular respiration? |
2. |
|
|
Which step produces carbon dioxide? |
Pyruvate oxidation. |
|
|
What cell type produces the least amount of ATP during aerobic cellular respiration? |
Most eukaryotic cells. |
|
|
Which molecule has the most energy? |
Glucose. |
|
|
In the last step of aerobic cellular respiration oxygen is combined with electrons and protons to produce: |
Water. |
|
|
What is the final acceptor of electrons in aerobic cellular respiration? |
O2 |
|
|
What happens to the carbon atoms in glucose as it goes through aerobic respiration? |
They are released as CO2. |
|
|
Which step in aerobic respiration is correctly paired with the net amount of ATP produced from one glucose molecule? |
Pyruvate oxidation: 0. |
|
|
What enzyme speeds this reaction: ADP + Pi -> ATP. |
ATP synthase. |
|
|
Which is true about the electron transport chain and chemiosmosis? |
ATP Synthase is embedded in the inner membrane of the mitochondrion. |
|
|
What does the electron transport chain do to the outer compartment of the mitochondrion? |
Makes it more acidic. |
|
|
What conversion takes place at the beginning of the electron transport chain? |
NADH to NAD+ |
|
|
Which molecule has 2 carbon atoms? |
Oxaloacetate. |
|
|
How many molecules of O2 are required for one glucose molecule to undergo lactic acid fermentation? |
0. |
|
|
In ethanol fermentation, when pyruvate is converted into acetaldehyde, which takes place? |
CO2 is produced. |
|
|
How many net ATP molecules can yeast produce when 6 glucose molecules undergo ethanol fermentation? |
12. |
|
|
What do human muscle cells produce under anaerobic (without oxygen) conditions? |
Lactic acid. |
|
|
How many net ATP molecules (theoretical yield) are produced when one glucose molecule undergoes aerobic cellular respiration? (Hint: count the ATP produced in ALL stages) |
30 or 32. |
|
|
Complete this photosynthesis equation: 12H2O + 6CO2 + light -> |
6O2 + C6H12O6 + 6H2O |
|
|
Which is produced by respiration and needed by photosynthesis? |
H2O and CO2. |
|
|
What is true about photosynthesis and respiration? |
Plants can do both photosynthesis and respiration. |
