Cell cytoplasm Matrix (central space) Inner membrane (forms cristae) Intermembrane Mitochondrion space 2 of 4 QUESTIONS Cytoplasm OIntermembrane space Matrix

Assume 10 NADH molecules and 10 FADH2 molecules enter the electron transport chain. How many ATP molecules will be synthesized?

What do you think of the idea that the synthesis of NADPH in chloroplasts is just the opposite of the oxidation of NADH in mitochondria? Give an explanation for your response.

explain why the statement is correct. Within the eukaryotic cell, most of the energy stored in ATP is produced through the: mitochondrion completing the oxidation of pyruvate (3 carbon chains)

Why is the P/O ratio for NADH not a whole number?

How NADH formed during glycolysis enters the mitochondria? Name both shuttle system (No explanation required)

Below is a diagram of the cross section of a mitochondrion. Fill in the blanks by choosing words from the Word Bank. Word Bank. Stroma membrane Electron Transport Chain accumulation site The structure at A is The process occurring at C is H+ ******** ADP H* H* ATP Chemiosmosis H+ The area at E is (E) ATP synthase Inner membrane NAD+ + H+ Matrix H* B H+ Vacuole FADH₂ NADH H* Citric acid cycle FAD + 2H+ The structure at B is H* Cyt c Stomate H* Calvin Cycle 1/20₂ + 2H+ Intermembrane space The sequence of events at D is H* H₂O A Outer 0000000000 Proton

Consider the structures and functions of mitochondria and chloroplasts.  For each of the statements below, identify which part(s) of the chloroplast or mitochondrion (identified by letters in the figure below) are described. Some answers may include more than 1 letter.  In those cases, separate the letters by a single space (eg. c g)     Electron transport chains are located in ------ Photosystem I and II are located in ------- Ubiquinone is located in ------- NADPH is produced in ------ Pyruvate oxidation takes place in ------ ATP is produced in ------ NAD+ is produced in ----- High H+ concentration is produced in ----- O2 is produced in ----- RuBP is produced in ------

The following diagrams illustrate the two aqueous spaces and the inner membrane of a mitochondrion. In which diagram is the relative concentration of protons auch that ATP synthesis could occur if ATP synthase were present? (Gold spheres represent protons.) 圈圈圈圈圈 A B D E OA OB OC OD OE intermembrane space Anner membrane matrie

With arrows, sketch the transfer of energy that occurs during the electron transport phase of cellular respiration. This is not the same as electron transfer. Where is the energy found at the beginning of the ETC, it is transferred into what form of energy, which is then finally converted into what form of energy?