1.Which process is not correctly matched with the location where it occurs? A) g
ID: 200402 • Letter: 1
Question
1.Which process is not correctly matched with the location where it occurs?
A) glycolysis: cytosol
B) The citric acid cycle: mitochondrial matrix
C)electron transport: inner mitochondrial membrane
D)oxidative phosphorylation: cytosol
2.How many CO2 molecules are formed from the complete oxidation of glucose?
A)1
B)2
C)4
D)6
3. What is true for NADH?
A.The electrons it donates to the electron transport chain travel through complexes I, II, III, and IV.
B)Each NADH can lead to the formation of 3 ATPs.
C)The passing of the electrons from NADH through the complexes results in 6 H+ being pumped into the intermembrane space.
D) In aerobic respiration, NADH is formed only in the mitochondrial matrix.
Explanation / Answer
1) Glycolysis is the metabolic process of glucose breakdown into pyruvate. This reaction takes place in the cytosol. In the cytosol, pyruvate is further processed to produce Acetyl CoA which then involve in TCA or Citric acid cycle that take place in Mitochondrial matrix. During TCA cycle there is the production of NADH and FADH2 which involve in oxidative phosphorylation that takes place in the mitochondrial matrix and involve electron transport through the inner mitochondrial membrane to produce ATP (an energy currency).
so option D is correct.
2) in glycolysis, one glucose molecule produces two pyruvate molecules. pyruvate is then converted into acetyl CoA. During this conversation, there is a liberation of one CO2 molecule. Acetyl CoA produces is then enter into mitochondria and participate in TCA cycle which produces Two CO2 molecules.
which means total CO2 produces by one glucose molecule = 3 x 2=6
that means Option D is correct.
3)NADH produces 3 ATP during the ETC (Electron Transport Chain) with oxidative phosphorylation because NADH gives up its electron to Complex I, which is at a higher energy level than the other Complexes.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.