283758
ATP formation occurs through which of the following :
1 Photophosphorylation
2 Oxidative phosphorylation
3 Substrate level phosphorylation
4 All of these
Explanation:
Exp:D - Substrate-level phosphorylation is an exergonic reaction in which a phosphoryl group from a substrate is transferred to adenosine diphosphate (ADP or GDP) to produce adenosine triphosphate (ATP or GTP). - Oxidative phosphorylation is the process that takes place through electron transport chain and establish a proton gradient, followed by chemiosmosis that produce ATP - Photophosphorylation uses the radiant energy of the sun for the synthesis of ATP.
AIIMS-26.05.2019 Shift-I
Respiration in Plants
283759
Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with:
1 matrix
2 Cytoplasm
3 Stroma
4 Cristae
Explanation:
Exp:D Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with cristae. - The inner mitochondrial membrane contain group of electron and proton acceptors. Each of these groups are arranged in specific sequence that form electron transport chain on electron transport system (ETS).
MHT CET-2019
Respiration in Plants
283762
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP?
1 Conversion of pytuvic acid in acetyl Co-A
2 Electron transport chain
3 Glycolysis
4 Krebs cycle
Explanation:
Exp:B The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that forms ATP in a complete system named oxidative phosphorylation. Hence, during this stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP.
JIPMER-2007
Respiration in Plants
283764
Phytochrome occurs in two forms. In which form it promotes the germination of seeds of some species ?
1 $\mathrm{P}_{\mathrm{fr}}$ forms
2 $P_{r}$ forms
3 Both (a) and (b)
4 None of these
Explanation:
Exp:A The form of phytochrome that promotes germination is $\mathrm{P}_{\mathrm{fr}} . \mathrm{P}_{\mathrm{fr}}$ is the active form of phytochrome , and it is produced when seeds are exposed to red light . $\mathrm{P}_{\mathrm{fr}}$ then binds to proteins in the cell, which triggers a series of events that lead to germination. - Phytochrome is a pigment. It is a protein that absorbs light in the red and far red region of the visible spectrum.
283758
ATP formation occurs through which of the following :
1 Photophosphorylation
2 Oxidative phosphorylation
3 Substrate level phosphorylation
4 All of these
Explanation:
Exp:D - Substrate-level phosphorylation is an exergonic reaction in which a phosphoryl group from a substrate is transferred to adenosine diphosphate (ADP or GDP) to produce adenosine triphosphate (ATP or GTP). - Oxidative phosphorylation is the process that takes place through electron transport chain and establish a proton gradient, followed by chemiosmosis that produce ATP - Photophosphorylation uses the radiant energy of the sun for the synthesis of ATP.
AIIMS-26.05.2019 Shift-I
Respiration in Plants
283759
Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with:
1 matrix
2 Cytoplasm
3 Stroma
4 Cristae
Explanation:
Exp:D Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with cristae. - The inner mitochondrial membrane contain group of electron and proton acceptors. Each of these groups are arranged in specific sequence that form electron transport chain on electron transport system (ETS).
MHT CET-2019
Respiration in Plants
283762
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP?
1 Conversion of pytuvic acid in acetyl Co-A
2 Electron transport chain
3 Glycolysis
4 Krebs cycle
Explanation:
Exp:B The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that forms ATP in a complete system named oxidative phosphorylation. Hence, during this stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP.
JIPMER-2007
Respiration in Plants
283764
Phytochrome occurs in two forms. In which form it promotes the germination of seeds of some species ?
1 $\mathrm{P}_{\mathrm{fr}}$ forms
2 $P_{r}$ forms
3 Both (a) and (b)
4 None of these
Explanation:
Exp:A The form of phytochrome that promotes germination is $\mathrm{P}_{\mathrm{fr}} . \mathrm{P}_{\mathrm{fr}}$ is the active form of phytochrome , and it is produced when seeds are exposed to red light . $\mathrm{P}_{\mathrm{fr}}$ then binds to proteins in the cell, which triggers a series of events that lead to germination. - Phytochrome is a pigment. It is a protein that absorbs light in the red and far red region of the visible spectrum.
283758
ATP formation occurs through which of the following :
1 Photophosphorylation
2 Oxidative phosphorylation
3 Substrate level phosphorylation
4 All of these
Explanation:
Exp:D - Substrate-level phosphorylation is an exergonic reaction in which a phosphoryl group from a substrate is transferred to adenosine diphosphate (ADP or GDP) to produce adenosine triphosphate (ATP or GTP). - Oxidative phosphorylation is the process that takes place through electron transport chain and establish a proton gradient, followed by chemiosmosis that produce ATP - Photophosphorylation uses the radiant energy of the sun for the synthesis of ATP.
AIIMS-26.05.2019 Shift-I
Respiration in Plants
283759
Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with:
1 matrix
2 Cytoplasm
3 Stroma
4 Cristae
Explanation:
Exp:D Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with cristae. - The inner mitochondrial membrane contain group of electron and proton acceptors. Each of these groups are arranged in specific sequence that form electron transport chain on electron transport system (ETS).
MHT CET-2019
Respiration in Plants
283762
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP?
1 Conversion of pytuvic acid in acetyl Co-A
2 Electron transport chain
3 Glycolysis
4 Krebs cycle
Explanation:
Exp:B The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that forms ATP in a complete system named oxidative phosphorylation. Hence, during this stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP.
JIPMER-2007
Respiration in Plants
283764
Phytochrome occurs in two forms. In which form it promotes the germination of seeds of some species ?
1 $\mathrm{P}_{\mathrm{fr}}$ forms
2 $P_{r}$ forms
3 Both (a) and (b)
4 None of these
Explanation:
Exp:A The form of phytochrome that promotes germination is $\mathrm{P}_{\mathrm{fr}} . \mathrm{P}_{\mathrm{fr}}$ is the active form of phytochrome , and it is produced when seeds are exposed to red light . $\mathrm{P}_{\mathrm{fr}}$ then binds to proteins in the cell, which triggers a series of events that lead to germination. - Phytochrome is a pigment. It is a protein that absorbs light in the red and far red region of the visible spectrum.
283758
ATP formation occurs through which of the following :
1 Photophosphorylation
2 Oxidative phosphorylation
3 Substrate level phosphorylation
4 All of these
Explanation:
Exp:D - Substrate-level phosphorylation is an exergonic reaction in which a phosphoryl group from a substrate is transferred to adenosine diphosphate (ADP or GDP) to produce adenosine triphosphate (ATP or GTP). - Oxidative phosphorylation is the process that takes place through electron transport chain and establish a proton gradient, followed by chemiosmosis that produce ATP - Photophosphorylation uses the radiant energy of the sun for the synthesis of ATP.
AIIMS-26.05.2019 Shift-I
Respiration in Plants
283759
Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with:
1 matrix
2 Cytoplasm
3 Stroma
4 Cristae
Explanation:
Exp:D Oxidation of $\mathrm{NADH}_{2}$ and $\mathrm{FADH}_{2}$ takes place during ETS, which is associated with cristae. - The inner mitochondrial membrane contain group of electron and proton acceptors. Each of these groups are arranged in specific sequence that form electron transport chain on electron transport system (ETS).
MHT CET-2019
Respiration in Plants
283762
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP?
1 Conversion of pytuvic acid in acetyl Co-A
2 Electron transport chain
3 Glycolysis
4 Krebs cycle
Explanation:
Exp:B The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that forms ATP in a complete system named oxidative phosphorylation. Hence, during this stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP.
JIPMER-2007
Respiration in Plants
283764
Phytochrome occurs in two forms. In which form it promotes the germination of seeds of some species ?
1 $\mathrm{P}_{\mathrm{fr}}$ forms
2 $P_{r}$ forms
3 Both (a) and (b)
4 None of these
Explanation:
Exp:A The form of phytochrome that promotes germination is $\mathrm{P}_{\mathrm{fr}} . \mathrm{P}_{\mathrm{fr}}$ is the active form of phytochrome , and it is produced when seeds are exposed to red light . $\mathrm{P}_{\mathrm{fr}}$ then binds to proteins in the cell, which triggers a series of events that lead to germination. - Phytochrome is a pigment. It is a protein that absorbs light in the red and far red region of the visible spectrum.
