1. Formation of ATP as a result of passage of electrons through the ETC is somet
ID: 693343 • Letter: 1
Question
1. Formation of ATP as a result of passage of electrons through the ETC is sometimes called oxidative phosphorylation because: a. As substrates are reduced, ADP is converted to ATP b. As ADP is phosphorylated, glucose is reduced in mitochondria c. The endoplasmic reticulum becomes oxidized due to the relatively oidative environment of the nucleus d. As substrates are oxidized, ADP is phosphorylated to form ATP e. Mitochondria are easily ignited 2. The interior of the inner mitochondrial membrane is relatively impermeable to ionic substances because: a. The membrane itself is ionic b. The membrane is relatively polar c. The outer portions of the membrane nearest the cytoplasm or mitochondrial matrix are relatively polar d. The inside of the membrane is filled with water e. The inside portion of the membrane is a lipid bilayer and relatively nonpolar 3. The ATP synthase complex is often called the F Fo ATP synthase. This refers to the fact that the synthase enzyme is composed of: a. A shaft or stator connecting a Fo motor and an Fi ATP generator b. An F·shaft connecting a stator motor and an F1 ATP generator c. An Fi proton-powered motor and a Fo ATP generator d. An F, motor and an F, ATP generator connected to a stator which can drive a small set of gears e. A polynucleotide gel connected to the ER 4. If not otherwise dangerous, uncouplers would make good diet aids because: a. They don't take part in the ETC b. They don't block any other reactions C. They lower redox potential d. They are very inexpensive e. They allow protons to pass through the mitochondrial membrane without ATP synthesis 5. The chemiosmotic theory suggests that a high concentration of protons outside the mitochondrial membrane: a. Reduce the oxidation potential b. Make the interior of the membrane highly acidic C. Cause the exterior of the membrane to become highly basic d. Generate a voltage and a protonmotive force which helped drive the ATP synthase e. Generate a low electrical potential and proton equalization which caused protons to exit the mitochondriaExplanation / Answer
It seems that 1 answer is marked correctly.
I am giving answer for 2 .
The interior of the inner mitochondrial membrane is relatively impermeable to ionic substances because they from hydronium ion which is very small.when H+ ion bound with water form H3O+ which is fairly small.
Hence option (d) is correct.
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