Description : Explain electron transport system in photosynthesis? -Biology
Last Answer : answer:
Description : How many ATP are produced in the electron transport chain? -Biology
Description : What are the products of electron transport chain?
Last Answer : The product is ATP by converting an ADP into an ATP
Description : which of the following describes the main role of the electron transport chain in cellular respiration?
Last Answer : it produces molecules of ATP. apex
Description : When the electrons pass from one carrier to another via complex-I to IV in the electron transport chain, they are coupled to ATP synthase (complex-V)
Last Answer : When the electrons pass from one carrier to another via complex-I to IV in the electron ... production of ATP from ADP and inorganic phosphate.
Description : Oxygen acts as the final hydrogen acceptor in electron transport chain of mitochondria.
Last Answer : Oxygen acts as the final hydrogen acceptor in electron transport chain of mitochondria.
Description : Name the process by which ATP is formed in electron transport system (ETS) in mitochondria.
Last Answer : Name the process by which ATP is formed in electron transport system (ETS) in mitochondria.
Description : Where do hydrogen ions build up after electrons pass through the electron transport chain?
Last Answer : Feel Free to Answer
Description : After electrons leave photosystem II, they move through a chain of three protein complexes. Where do they go after that electron transport chain?
Last Answer : Photosystem I (APEX)
Description : All the following compounds are members of the electron transport chain except (A) Ubiquinone (B) Carnitine (C) NAD (D) FAD
Last Answer : Answer : B
Description : Biological activity of tocopherols has been attributed in part to their action as (A) Antioxidant (B) Anticoagulents (C) Provitamin (D) Carriers in electron transport system
Description : An uncoupler of oxidative phosphorylation such as dinitrophenol (A) Inhibits electron transport and ATP synthesis (B) Allow electron transport to proceed without ATP synthesis (C) Inhibits electron transport without impairment of ATP synthesis (D) Specially inhibits cytochrome b
Last Answer : B
Description : The transport of a pair of electrons from NADH to O2 via the electron transport chain produces (A) –52,580 cal (B) –50,580 cal (C) 21,900 cal (D) +52,580 cal
Last Answer : D
Description : Electron transport and phosphorylation can be uncoupled by compounds that increase the permeability of the inner mitochondrial membrane to (A) Electrons (B) Protons (C) Uncouplers (D) All of these
Description : Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane
Description : In gram positive and gram negative bacteria the electron transport contains a. Naphthquinone b. Plastoquinone c. Ubiquinone d. Both a and b
Last Answer : Ans: A
Description : Cyanide poisoning causes death in seconds because - (1) It denatures enzymes of the heart/muscle (2) It breaks the electron transport chain (3) It causes Lysis of red blood cells (4) It causes cardiac arrest
Last Answer : (4) It causes cardiac arrest Explanation: Cyanide poisoning occurs on exposure to a com-pound that produces cyanide ions when dissolved in water. The cyanide ion halts cellular respiration by inhibiting ... coma with seizures, apnea, and cardiac arrest, with death following in a matter of seconds.
Description : During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP? (a) Glycolysis (b) Krebs’ cycle (c) Conversion of pyruvic acid to acetyl CoA (d) Electron transport chain
Last Answer : (d) Electron transport chain
Description : The overall goal of glycolysis, Krebs’ cycle and the electron transport system is the formation of (a) ATP in one large oxidation reaction (b) sugars (c) nucleic acids (d) ATP in small stepwise units
Last Answer : d) ATP in small stepwise units.
Description : Where is respiratory electron transport system (ETS) located in plants ? (a) Mitochondrial matrix (b) Outer mitochondrial membrane (c) Inner mitochondrial membrane (d) Intermembrane space
Last Answer : (c) Inner mitochondrial membrane
Description : Emerson’s enhancement effect and Red drop have been instrumental in the discovery of (a) photophosphorylation and cyclic electron transport (b) oxidative phosphorylation (c) photophosphorylation and non-cyclic electron transport (d) two photosystems operating simultaneously.
Last Answer : (d) two photosystems operating simultaneously.
Description : The deficiencies of micronutrients, not only affect growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both ... , Mo (b) Ca, K, Na (c) Mn, Co, Ca (d) Cu, Mn, Fe
Last Answer : d) Cu, Mn, Fe
Description : Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of ... transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.
Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.
Description : Where is the most ATP produced in cellular respiration? a. Fermentation b. Electron Transport Chain c. Glycolysis d. Citric Acid Cycle
Last Answer : b. Electron Transport Chain
Description : The electron transport chain is directly involved with a. ATP Synthesis b. CO2 Production. c. H + Pumping d. Generating Oxygen Gas.
Last Answer : a. ATP Synthesis
Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase
Last Answer : A.substrate-level phosphorylation
Description : Most of the energy in aerobic respiration of glucose is captured by A- substrate-level phosphorylation B- electron transport of electrons from NADH C- long-chain fatty acid oxidation D- the enzyme formic-hydrogen lyase
Last Answer : electron transport of electrons from NADH
Description : Which of the following is exposed on the outer surface of a gram-negative bacterium?A- O-antigen of lipopolysaccharide (LPS) B- Polysaccharide portion of lipoteichoic acid (LTA) C- Braun lipoprotein D- .Electron transport system components
Last Answer : O-antigen of lipopolysaccharide (LPS)
Description : Oxidative phosphorylation involves (A) Electron transport system (B) Substrate level phosphorylation (C) Reaction catalyzed by succinic thiokinase in TCA cycle (D) None of the above
Last Answer : (A) Electron transport system
Description : The electron transport chain within the inner mitochondrial membrane creates a gradient of ____________ across the inner membrane which is utilized to drive the activity of ATP synthase and the generation of ATP.
Last Answer : Hydrogen (H+ ions) or protons
Description : Cyanide poisoning causes death in seconds because (1) It denatures enzymes of the heart/muscle (2) It breaks the electron transport chain (3) It causes Lysis of red blood cells. (4) It causes cardiac arrest
Last Answer : It causes cardiac arrest
Description : What is the difference between prokaryotic and eukaryotic cells?
Last Answer : Prokaryotic cells are smaller and simpler, lacking a nucleus and membrane-bound organelles. Eukaryotic cells are larger and more complex, containing a nucleus and other membrane-bound organelles.
Description : What is the difference between a prokaryotic and eukaryotic cell?
Last Answer : A: Prokaryotic cells are simpler in structure and lack a nucleus and other membrane-bound organelles, while eukaryotic cells are more complex and have a nucleus and other membrane-bound organelles.
Last Answer : A: Prokaryotic cells are smaller and simpler than eukaryotic cells, and lack a nucleus and other membrane-bound organelles found in eukaryotic cells.
Description : What is the difference between a prokaryotic cell and a eukaryotic cell?
Last Answer : A: Prokaryotic cells are smaller and simpler than eukaryotic cells, lacking a true nucleus and membrane-bound organelles, while eukaryotic cells are larger and more complex, with a true nucleus and various membrane-bound organelles.
Description : What is the difference between a prokaryotic and a eukaryotic cell?
Last Answer : A: Prokaryotic cells are cells that lack a true nucleus and other membrane-bound organelles, while eukaryotic cells have a true nucleus and membrane-bound organelles.
Description : What is the difference between a prokaryotic and a eukaryotic organism?
Last Answer : A: Prokaryotic organisms are unicellular organisms that lack a nucleus and other membrane-bound organelles, while eukaryotic organisms can be unicellular or multicellular and have a nucleus and other membrane-bound organelles.
Last Answer : A: Prokaryotic cells are small, simple cells that lack a nucleus and other membrane-bound organelles, while eukaryotic cells are larger, more complex cells that have a nucleus and other membrane-bound organelles.
Last Answer : A: Prokaryotic cells are simpler in structure and lack a distinct nucleus and other membrane-bound organelles, while eukaryotic cells have a more complex structure that includes a nucleus and various membrane-bound organelles.
Last Answer : A: Prokaryotic cells are simple cells that lack a nucleus and other membrane-bound organelles, while eukaryotic cells are complex cells that contain a nucleus and other membrane-bound organelles.
Last Answer : A: Prokaryotic cells are simple, single-celled organisms that lack a nucleus and other membrane-bound organelles, while eukaryotic cells are more complex, multicellular organisms that have a nucleus and other membrane-bound organelles.
Last Answer : A: Prokaryotic cells are smaller and simpler than eukaryotic cells, and lack a nucleus and membrane-bound organelles. Eukaryotic cells are larger and more complex, and contain a nucleus and various membrane-bound organelles.
Last Answer : A: Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles.
Description : What is the difference between a prokaryotic and eukaryotic chromosome?
Last Answer : A: Prokaryotic chromosomes are typically circular and do not have associated proteins, while eukaryotic chromosomes are linear and are associated with histone proteins.
Last Answer : A: Prokaryotic cells do not have a nucleus or other membrane-bound organelles, while eukaryotic cells do.