Chemiosmotic Hypothesis

01

PYQ 2008

easy

botany ID: neet-200

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate (ATP) is formed because: 1. high energy bonds are formed in mitochondrial proteins 2. ADP is pumped out of the matrix into the inter-membrane space 3. a proton gradient forms across the inner membrane 4. there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)

1

(1)

2

(2)

3

(3)

4

(4)

02

PYQ 2022

easy

botany ID: neet-202

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves: 1. Reduction of NADP to NADPH 2 on the stroma side of the membrane 2. Breakdown of proton gradient 3. Breakdown of electron gradient 4. Movement of protons across the membrane to the stroma

1

(1)

2

(2)

3

(3)

4

(4)

03

PYQ 2023

easy

botany ID: neet-202

Which of the following combinations is required for chemiosmosis? 1. Proton pump, electron gradient, NADP synthase. 2. Membrane, proton pump, proton gradient, ATP synthase. 3. Membrane, proton pump, proton gradient, NADP synthase 4. Proton pump, electron gradient, ATP synthase

1

(1)

2

(2)

3

(3)

4

(4)

Questions
3 MCQs

1.	high energy bonds are formed in mitochondrial proteins
2.	ADP is pumped out of the matrix into the inter-membrane space
3.	a proton gradient forms across the inner membrane
4.	there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)

1.	Reduction of NADP to NADPH₂ on the stroma side of the membrane
2.	Breakdown of proton gradient
3.	Breakdown of electron gradient
4.	Movement of protons across the membrane to the stroma

1.	Proton pump, electron gradient, NADP synthase.
2.	Membrane, proton pump, proton gradient, ATP synthase.
3.	Membrane, proton pump, proton gradient, NADP synthase
4.	Proton pump, electron gradient, ATP synthase