NAME

Question types


Start with


Question limit

of 45 available terms

Advertisement Upgrade to remove ads
Print test

5 Written questions

5 Matching questions

  1. Proton-Motive Force
  2. FMN (flavin mononuclotide)
  3. Autotrophic
  4. Electron Carriers
  5. Pyruvate Decarboxylation
  1. a - from proton gradient
    - drives H+ back across inner membrane and into the matrix
    - membrane is impermeable to ions, so H⁺ must flow through specialized channels provided by enzyme complexes called ATP synthetases
    - as H⁺ pass through ATP synthetases, energy is released to allow for the phosphorylation of ADP to ATP
    - oxidative phosphorylation: coupling of oxidation of NADH with phosphorylation of ADP
  2. b - categorized into three large protein complexes:
    a) NADH dehydrogenase
    b) the b-c₁ complex
    c) cytochrome oxidase
  3. c - green plants
    - convert sunlight into bond energy stored in the bonds of organic compounds (glucose) in the anabolic process of photosythesis
    - don't need an exogenous supply of organic compounds
  4. d - first molecule of the ETC
    - reduced when it accepts electrons from NADH, therefore oxidizing NADH to NAD⁺
  5. e - pyruvate formed during glycolysis is transported from the cytoplasm into the mitochondrial matrix where it is carboxylated (lost a CO₂), and the remaining acetyl group is transfered to coenzyme A to form acetyl CoA.
    - in process, NAD⁺ is reduced to NADH
    - pyruvate + coenzyme A -- acetyl CoA

5 Multiple choice questions

  1. nicotinamide adenine dinuclotide
  2. - ATP is produced when high energy potential electrons are transferred from NADH and FADH₂ to oxygen by a series of carrier molecules located in the inner mitochondrial membrane
    - as the electrons are transferred from carrier to carrier, free energy is released
    - later this energy is used to form ATP
  3. flavin adenine dinucleotide
  4. - series of reactions that lead to the oxidative breakdown of glucose into two molecules of pyruvate, the production of ATP and reduction of NAD⁺ into NADH
    - occurs in cytoplasm
    - mediated by specific enzymes
  5. - there are energy losses as electrons are transferred from one complex to the next, this energy is then used to synthesize 1 ATP per complex
    - since we have 3 complexes, we generate 3 ATP
    - NADH delivers its electrons to NADH dehydrogenase complex, so for each NADH = 3 ATP
    - FADH₂ bypasses the NADH dehydrogenase complex and delivers directly to carrier Q (ubiquinone), which is between complex 1 and 2, so each FADH₂ = 2 ATP

5 True/False questions

  1. Net Reaction for Glycolysis6CO₂ + 2H₂O + energy --> C₆H₁₂O₆ + 6O₂

          

  2. Reduction- gain of electrons

          

  3. Fats- stored in adipose tissue in the form of triglyceride
    - when needed, they are hydrolyzed by lipases to fatty acids and glycerol, and are carried by the blood to other tissues for oxidation
    - glycerol can be converted into PGAL
    - a fatty acid must be "activated" first in the cytoplasm, this requires 2 ATP
    - on active, it is transorted into mitochondrion and taken through a series of "beta-oxidation cycles" that convert it into two carbon fragments, then converted to acetyl CoA, which enter TCA cycle.
    - each round of beta oxidation generates 1 NADH and 1 FADH₂
    -fats yield the most ATP per gram

          

  4. Cytochrome a₃- most of the molecules of the ETC
    - electron carriers that resemble hemoglobin in structure of their active site
    - functional unit contains a central iron atom, which is capable of undergoing a reversible redox reaction

          

  5. Substrate Level Phosphorylation- ATP is produced when high energy potential electrons are transferred from NADH and FADH₂ to oxygen by a series of carrier molecules located in the inner mitochondrial membrane
    - as the electrons are transferred from carrier to carrier, free energy is released
    - later this energy is used to form ATP

          

Create Set