05. ETS and Oxidative Phosphorylation
« Previous Topic: 04. Krebs Cycle Next Topic: 06. The respiratory Balance sheet »
Respiration in Plants

283756 Assertion (A): When electrons move through the transport chain, protons are transported across the membrane.
Reason (R): Because the primary acceptor of electron located towards the outside of the membrane, transfers its electrons to a $\mathrm{H}$ carrier (PQ).
The correct option among the following is Options:

1 (A) is true, (R) is true and (R) is the correct explanation for (A)
2 (A) is true, (R) is true but (R) is not the correct explanation for $(\mathrm{A})$
3 (A) is true but (R) is false
4 (A) is false but (R) is true
TS EAMCET-09.08.2021 Shift-I
Respiration in Plants

283779 Match the following electron transport chain (ETC) inhibitors with their mode of action.
| | Column - I | | Column - II |
| :--- | :--- | :--- | :--- |
| A. | Dinitrophenol (2.4-DNP) | 1. | Electro flow from cyt - $\mathbf{a}_3$ to O O |
| B. | Cyanide | 2. | Direct electrons from Co-Q to O |
| C. | Antimycin -A | 3. | Electron flow from NADH/ FADH a to Co-Q |
| D. | Rotenone | 4. | Electron flow from Cyt-b to Cyt-c |
Codes

1 A-2 B-4 C-1 D-3
2 A-2 B-1 C-4 D-3
3 A-3 B-4 C-1 D-2
4 A-4 B-3 C-2 D-1
MGIMS Wardha-2015
Respiration in Plants

283753 Choose the incorrect statement with reference to the cyclic electron transport

1 PSI alone is functional
2 Occurs in stroma lamella.
3 Membrane of stroma lamellae lack NADP reductase enzyme
4 Occurs when wavelength below $680 \mathrm{~nm}$ are available for $\mathrm{e}^{-}$excitation.
AP EAPCET-22.05.2023
Respiration in Plants

283755 Which of the following statements are incorrect?

1 Oxidation-reduction reactions produce proton gradient in respiration
2 During aerobic respiration, role of oxygen is limited to the terminal stage
3 In ETC (Electron Transport Chain), one molecule of $\mathrm{NADH}+\mathrm{H}^{+}$gives rise to $2 \mathrm{ATP}$ molecules, and one $\mathrm{FADH}_{2}$ gives rise to 3 ATP molecules
4 ATP is synthesized through complex V
NEET-2021
Respiration in Plants

283757 Which of the following is/are the product (s) of cyclic photophosphorylation?

1 Both NADPH and $\mathrm{H}^{+}$
2 NADPH
3 ATP
4 Both ATP and NADPH
KVPY SB \& SX-2019 / Kerala PMT-2015
NEET DIGITAL LIBRARY
Respiration in Plants

283756 Assertion (A): When electrons move through the transport chain, protons are transported across the membrane.
Reason (R): Because the primary acceptor of electron located towards the outside of the membrane, transfers its electrons to a $\mathrm{H}$ carrier (PQ).
The correct option among the following is Options:

1 (A) is true, (R) is true and (R) is the correct explanation for (A)
2 (A) is true, (R) is true but (R) is not the correct explanation for $(\mathrm{A})$
3 (A) is true but (R) is false
4 (A) is false but (R) is true
TS EAMCET-09.08.2021 Shift-I
Respiration in Plants

283779 Match the following electron transport chain (ETC) inhibitors with their mode of action.
| | Column - I | | Column - II |
| :--- | :--- | :--- | :--- |
| A. | Dinitrophenol (2.4-DNP) | 1. | Electro flow from cyt - $\mathbf{a}_3$ to O O |
| B. | Cyanide | 2. | Direct electrons from Co-Q to O |
| C. | Antimycin -A | 3. | Electron flow from NADH/ FADH a to Co-Q |
| D. | Rotenone | 4. | Electron flow from Cyt-b to Cyt-c |
Codes

1 A-2 B-4 C-1 D-3
2 A-2 B-1 C-4 D-3
3 A-3 B-4 C-1 D-2
4 A-4 B-3 C-2 D-1
MGIMS Wardha-2015
Respiration in Plants

283753 Choose the incorrect statement with reference to the cyclic electron transport

1 PSI alone is functional
2 Occurs in stroma lamella.
3 Membrane of stroma lamellae lack NADP reductase enzyme
4 Occurs when wavelength below $680 \mathrm{~nm}$ are available for $\mathrm{e}^{-}$excitation.
AP EAPCET-22.05.2023
Respiration in Plants

283755 Which of the following statements are incorrect?

1 Oxidation-reduction reactions produce proton gradient in respiration
2 During aerobic respiration, role of oxygen is limited to the terminal stage
3 In ETC (Electron Transport Chain), one molecule of $\mathrm{NADH}+\mathrm{H}^{+}$gives rise to $2 \mathrm{ATP}$ molecules, and one $\mathrm{FADH}_{2}$ gives rise to 3 ATP molecules
4 ATP is synthesized through complex V
NEET-2021
Respiration in Plants

283757 Which of the following is/are the product (s) of cyclic photophosphorylation?

1 Both NADPH and $\mathrm{H}^{+}$
2 NADPH
3 ATP
4 Both ATP and NADPH
KVPY SB \& SX-2019 / Kerala PMT-2015
Join With Us for More Updates
Respiration in Plants

283756 Assertion (A): When electrons move through the transport chain, protons are transported across the membrane.
Reason (R): Because the primary acceptor of electron located towards the outside of the membrane, transfers its electrons to a $\mathrm{H}$ carrier (PQ).
The correct option among the following is Options:

1 (A) is true, (R) is true and (R) is the correct explanation for (A)
2 (A) is true, (R) is true but (R) is not the correct explanation for $(\mathrm{A})$
3 (A) is true but (R) is false
4 (A) is false but (R) is true
TS EAMCET-09.08.2021 Shift-I
Respiration in Plants

283779 Match the following electron transport chain (ETC) inhibitors with their mode of action.
| | Column - I | | Column - II |
| :--- | :--- | :--- | :--- |
| A. | Dinitrophenol (2.4-DNP) | 1. | Electro flow from cyt - $\mathbf{a}_3$ to O O |
| B. | Cyanide | 2. | Direct electrons from Co-Q to O |
| C. | Antimycin -A | 3. | Electron flow from NADH/ FADH a to Co-Q |
| D. | Rotenone | 4. | Electron flow from Cyt-b to Cyt-c |
Codes

1 A-2 B-4 C-1 D-3
2 A-2 B-1 C-4 D-3
3 A-3 B-4 C-1 D-2
4 A-4 B-3 C-2 D-1
MGIMS Wardha-2015
Respiration in Plants

283753 Choose the incorrect statement with reference to the cyclic electron transport

1 PSI alone is functional
2 Occurs in stroma lamella.
3 Membrane of stroma lamellae lack NADP reductase enzyme
4 Occurs when wavelength below $680 \mathrm{~nm}$ are available for $\mathrm{e}^{-}$excitation.
AP EAPCET-22.05.2023
Respiration in Plants

283755 Which of the following statements are incorrect?

1 Oxidation-reduction reactions produce proton gradient in respiration
2 During aerobic respiration, role of oxygen is limited to the terminal stage
3 In ETC (Electron Transport Chain), one molecule of $\mathrm{NADH}+\mathrm{H}^{+}$gives rise to $2 \mathrm{ATP}$ molecules, and one $\mathrm{FADH}_{2}$ gives rise to 3 ATP molecules
4 ATP is synthesized through complex V
NEET-2021
Respiration in Plants

283757 Which of the following is/are the product (s) of cyclic photophosphorylation?

1 Both NADPH and $\mathrm{H}^{+}$
2 NADPH
3 ATP
4 Both ATP and NADPH
KVPY SB \& SX-2019 / Kerala PMT-2015
For More Updates join with Us
Respiration in Plants

283756 Assertion (A): When electrons move through the transport chain, protons are transported across the membrane.
Reason (R): Because the primary acceptor of electron located towards the outside of the membrane, transfers its electrons to a $\mathrm{H}$ carrier (PQ).
The correct option among the following is Options:

1 (A) is true, (R) is true and (R) is the correct explanation for (A)
2 (A) is true, (R) is true but (R) is not the correct explanation for $(\mathrm{A})$
3 (A) is true but (R) is false
4 (A) is false but (R) is true
TS EAMCET-09.08.2021 Shift-I
Respiration in Plants

283779 Match the following electron transport chain (ETC) inhibitors with their mode of action.
| | Column - I | | Column - II |
| :--- | :--- | :--- | :--- |
| A. | Dinitrophenol (2.4-DNP) | 1. | Electro flow from cyt - $\mathbf{a}_3$ to O O |
| B. | Cyanide | 2. | Direct electrons from Co-Q to O |
| C. | Antimycin -A | 3. | Electron flow from NADH/ FADH a to Co-Q |
| D. | Rotenone | 4. | Electron flow from Cyt-b to Cyt-c |
Codes

1 A-2 B-4 C-1 D-3
2 A-2 B-1 C-4 D-3
3 A-3 B-4 C-1 D-2
4 A-4 B-3 C-2 D-1
MGIMS Wardha-2015
Respiration in Plants

283753 Choose the incorrect statement with reference to the cyclic electron transport

1 PSI alone is functional
2 Occurs in stroma lamella.
3 Membrane of stroma lamellae lack NADP reductase enzyme
4 Occurs when wavelength below $680 \mathrm{~nm}$ are available for $\mathrm{e}^{-}$excitation.
AP EAPCET-22.05.2023
Respiration in Plants

283755 Which of the following statements are incorrect?

1 Oxidation-reduction reactions produce proton gradient in respiration
2 During aerobic respiration, role of oxygen is limited to the terminal stage
3 In ETC (Electron Transport Chain), one molecule of $\mathrm{NADH}+\mathrm{H}^{+}$gives rise to $2 \mathrm{ATP}$ molecules, and one $\mathrm{FADH}_{2}$ gives rise to 3 ATP molecules
4 ATP is synthesized through complex V
NEET-2021
Respiration in Plants

283757 Which of the following is/are the product (s) of cyclic photophosphorylation?

1 Both NADPH and $\mathrm{H}^{+}$
2 NADPH
3 ATP
4 Both ATP and NADPH
KVPY SB \& SX-2019 / Kerala PMT-2015
NEET DIGITAL LIBRARY
Respiration in Plants

283756 Assertion (A): When electrons move through the transport chain, protons are transported across the membrane.
Reason (R): Because the primary acceptor of electron located towards the outside of the membrane, transfers its electrons to a $\mathrm{H}$ carrier (PQ).
The correct option among the following is Options:

1 (A) is true, (R) is true and (R) is the correct explanation for (A)
2 (A) is true, (R) is true but (R) is not the correct explanation for $(\mathrm{A})$
3 (A) is true but (R) is false
4 (A) is false but (R) is true
TS EAMCET-09.08.2021 Shift-I
Respiration in Plants

283779 Match the following electron transport chain (ETC) inhibitors with their mode of action.
| | Column - I | | Column - II |
| :--- | :--- | :--- | :--- |
| A. | Dinitrophenol (2.4-DNP) | 1. | Electro flow from cyt - $\mathbf{a}_3$ to O O |
| B. | Cyanide | 2. | Direct electrons from Co-Q to O |
| C. | Antimycin -A | 3. | Electron flow from NADH/ FADH a to Co-Q |
| D. | Rotenone | 4. | Electron flow from Cyt-b to Cyt-c |
Codes

1 A-2 B-4 C-1 D-3
2 A-2 B-1 C-4 D-3
3 A-3 B-4 C-1 D-2
4 A-4 B-3 C-2 D-1
MGIMS Wardha-2015
Respiration in Plants

283753 Choose the incorrect statement with reference to the cyclic electron transport

1 PSI alone is functional
2 Occurs in stroma lamella.
3 Membrane of stroma lamellae lack NADP reductase enzyme
4 Occurs when wavelength below $680 \mathrm{~nm}$ are available for $\mathrm{e}^{-}$excitation.
AP EAPCET-22.05.2023
Respiration in Plants

283755 Which of the following statements are incorrect?

1 Oxidation-reduction reactions produce proton gradient in respiration
2 During aerobic respiration, role of oxygen is limited to the terminal stage
3 In ETC (Electron Transport Chain), one molecule of $\mathrm{NADH}+\mathrm{H}^{+}$gives rise to $2 \mathrm{ATP}$ molecules, and one $\mathrm{FADH}_{2}$ gives rise to 3 ATP molecules
4 ATP is synthesized through complex V
NEET-2021
Respiration in Plants

283757 Which of the following is/are the product (s) of cyclic photophosphorylation?

1 Both NADPH and $\mathrm{H}^{+}$
2 NADPH
3 ATP
4 Both ATP and NADPH
KVPY SB \& SX-2019 / Kerala PMT-2015