Cellular Respiration TGT
QUESTIONS
1.
The first step in cellular respiration is ________
2.
The first step in cellular respiration occurs in the _________
3.
If oxygen is not present then the cell must do _____________respiration.
4.
In fermentation, there is no ________and no ____________ because of the lack of oxygen.
5.
The final output of glycolysis is ___________.
6.
If oxygen is available, pyruvic acid is converted to ___________.
7.
The Kreb Cycle occurs in the _______________of the mitochondria.
8.
The 4 outputs or products of the Kreb Cycle are ______, _______, ________ and
________.
9.
The last step in aerobic respiration is the ____________.
10.
The last step in aerobic respiration takes place where in the cell?
11.
What two products from the Kreb cycle go to the Electron Transport Chain?
12.
What gas molecule is necessary to collect the electrons at the end of the ETC?
13.
What do the carbons in glucose become once broken down by cellular respiration?
14.
How many ATPs total are obtained from one glucose molecule?
15.
What molecule must be recycled for the Kreb Cycle to continue?
16.
What molecule carries the 2-carbon acetyl group to the Kreb Cycle?
17.
What do NADH and FADH2 drop off at the ETC?
18.
When e- are passed down the ETC, H+ are pumped out into the __________.
19.
What membrane protein allows H+ to re-enter the matrix?
20.
What membrane protein uses the energy of the H+ “dropping” back to the matrix to make ATPs?
21.
What is the overall equation for cellular respiration?
22.
What is the end product of alcohol fermentation?
23.
What is the end product of lactic acid fermentation?
24.
How many ATP are made from 1 glucose during anaerobic respiration?
25.
How many ATP are made from 1 glucose during aerobic respiration?

Cellular Respiration TGT
Answers
1.
The first step in cellular respiration is GLYCOLYSIS.
2.
The first step in cellular respiration occurs in the CYTOSOL.
3.
If oxygen is not present then the cell must do ANAEROBIC respiration.
4.
In fermentation, there is no ETC and no KREB CYCLE because of the lack of oxygen.
5.
The final output of glycolysis is PYRUVIC ACID .
6.
If oxygen is available, pyruvic acid is converted to ACETYL CoA.
7.
The Kreb Cycle occurs in the MATRIX of the mitochondria.
8.
The 4 outputs or products of the Kreb Cycle are NADH, FADH2, CO
2
and ATP.
9.
The last step in aerobic respiration is the ELECTRON TRANSPORT CHAIN
(ETC)
10.
The last step in aerobic respiration takes place where in the cell? INNER
MEMBRANE OF MITOCHONDRIA (CRISTAE)
11.
What two products from the Kreb cycle go to the Electron Transport Chain?
NADH, FADH2
12.
What gas molecule is necessary to collect the electrons at the end of the ETC?
OXYGEN
13.
What do the carbons in glucose become once broken down by cellular respiration? CO
2
– CARBON DIOXIDE
14.
How many ATPs are produced by the ETC? 34
15.
What molecule must be recycled for the Kreb Cycle to continue?
OXALOACETATE
16.
What molecule carries the 2-carbon acetyl group to the Kreb Cycle? CoA
17.
What do NADH and FADH2 drop off at the ETC? ELECTRONS
18.
When e- are passed down the ETC, H+ are pumped out into the
INTERMEMBRANE SPACE OF THE MITOCHONDRIA .
19.
What membrane protein allows H+ to re-enter the matrix? ATP SYNTHASE
20.
What membrane protein uses the energy of the H+ “dropping” back to the matrix to make ATPs?
ATP SYNTHASE
21.
What is the overall equation for cellular respiration?
C
6
H
12
O
6
+ 6O
2
 6CO
2
+ 6H
2
O + 38 ATP
22.
What is the end product of alcohol fermentation? ETHANOL
23.
What is the end product of lactic acid fermentation? LACTIC ACID
24.
How many ATP are made from 1 glucose during anaerobic respiration? 2 ATP
25.
How many ATP are made from 1 glucose during aerobic respiration? 38 ATP