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Explain ETS.
Biology
Biology

Class 11

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

11 questions

arrow
2

Chapter 2: Biological Classification

12 questions

arrow
3

Chapter 3: Plant Kingdom

12 questions

arrow
4

Chapter 4: Animal Kingdom

15 questions

arrow
5

Chapter 5: Morphology of Flowering Plants

15 questions

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6

Chapter 6: Anatomy of Flowering Plants

12 questions

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7

Chapter 7: Structural Organization in Animals

14 questions

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8

Chapter 8: Cell: The Unit of Life

14 questions

arrow
9

Chapter 9: Biomolecules

15 questions

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10

Chapter 10: Cell Cycle and Cell Division

16 questions

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11

Chapter 11: Transport in Plants

16 questions

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12

Chapter 12: Mineral Nutrition

10 questions

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13

Chapter 13: Photosysnthesis in Higher Plants

9 questions

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14

Chapter 14: Respiration in Plants

12 questions

Q1
Give the schematic representation of an overall view of Krebs cycle.
Q2
Explain ETS.
Q3
Distinguish between the following:
(a) Aerobic respiration and Anaerobic respiration
(b) Glycolysis and Fermentation
(c) Glycolysis and Citric acid cycle
View all question
15

Chapter 15: Plant Growth and Development

11 questions

arrow
16

Chapter 16: Digestion and Absorption

15 questions

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17

Chapter 17: Breathing and Exchange of Gases

14 questions

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18

Chapter 18: Body Fluids and Circulation

14 questions

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19

Chapter 19: Excretory Products and their Elimination

12 questions

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20

Chapter 20: Locomotion and Movement

10 questions

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21

Chapter 21: Neural Control and Coordination

12 questions

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22

Chapter 22: Chemical Coordination and Integration

9 questions

arrow
Question
Hard
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Solving time: 10 mins

Explain ETS.

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Book

Book:

Biology (NCERT)

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Text SolutionText solutionverified iconVerified

ETS or electron transport system is located in the inner mitochondrial membrane. It helps in releasing and utilizing the energy stored in NADH and FADH. NADH which is formed during glycolysis and citric acid cycle, gets oxidized by NADH dehydrogenase (complex I). The electrons so generated get transferred to ubiquinone through FMN. In a similar manner, FADH (complex II) generated during citric acid cycle gets transferred to ubiquinone. The electrons from ubiquinone are received by cytochrome bc1 (complex III) and further get transferred to cytochrome c. The cytochrome c acts as a mobile carrier between complex III and cytochrome c oxidase complex, containing cytochrome a and a, along with copper centres (complex IV).
During the transfer of electrons from each complex, the process is accompanied by the production of ATP from ADP and inorganic phosphate by the action ATP synthase (complex V). The amount of ATP produced depends on the molecule, which has been oxidized. 3 ATP molecules are produced by the oxidation of one molecule of NADH. One molecule of FADH, on oxidation, gives 2 ATP molecules.

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Question Text
Explain ETS.
TopicRespiration in Plants
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes42