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Respiration in Plants · Question 24

NEET 2016 (Phase 2)MCQEasy📈 Topic in 38% papers+4−1
1

Oxidative phosphorylation is

  1. formation of ATP by transfer of phosphate group from a substrate to ADP
  2. oxidation of phosphate group in ATP
  3. addition of phosphate group to ATP
  4. formation of ATP by energy released from electrons removed during substrate oxidation.

Answer

(4) formation of ATP by energy released from electrons removed during substrate oxidation.

Solution

As per NCERT, in respiration the energy of oxidation–reduction (electrons removed from substrates and passed along the electron transport system) is utilised for the production of proton gradient required for phosphorylation; hence the process is called oxidative phosphorylation.

⇒ Formation of ATP by direct transfer of phosphate from a substrate to ADP is substrate-level phosphorylation, not oxidative phosphorylation.

∴ Oxidative phosphorylation is formation of ATP by energy released from electrons removed during substrate oxidation.

Answer: (4)

NEET 2016 (Phase 2)

Keep practising — Respiration in Plants

2

Cytochromes are found in

  1. cristae of mitochondria
  2. lysosomes
  3. matrix of mitochondria
  4. outer wall of mitochondria.
AIPMT 2015 (Cancelled)
3

In which one of the following processes CO2 is not released?

  1. Aerobic respiration in plants
  2. Aerobic respiration in animals
  3. Alcoholic fermentation
  4. Lactic fermentation
AIPMT 2014
4

Which of the metabolites is common to respiration-mediated breakdown of fats, carbohydrates and proteins?

  1. Pyruvic acid
  2. Acetyl CoA
  3. Glucose-6-phosphate
  4. Fructose-1,6-bisphosphate
NEET 2013
5

The three boxes in this diagram represent the three major biochemical pathways in aerobic respiration. Arrows represent net reactants or products. [figure] Arrows numbered 4, 8 and 12 can all be

  1. H2O
  2. FAD or FADH2
  3. NADH
  4. ATP.
NEET 2013
6

In mitochondria, protons accumulate in the

  1. outer membrane
  2. inner membrane
  3. intermembrane space
  4. matrix
AIPMT 2011 (Mains)
7

The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called

  1. glycolysis
  2. fermentation
  3. aerobic respiration
  4. photorespiration
AIPMT 2010 (Prelims)
8

Aerobic respiratory pathway is appropriately termed

  1. parabolic
  2. amphibolic
  3. anabolic
  4. catabolic.
AIPMT 2009
9

The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called

  1. glycolysis
  2. fermentation
  3. aerobic respiration
  4. photorespiration
AIPMT 2008
10

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because

  1. a proton gradient forms across the inner membrane
  2. there is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP)
  3. high energy bonds are formed in mitochondrial proteins
  4. ADP is pumped out of the matrix into the intermembrane space
AIPMT 2008
11

The overall goal of glycolysis, Krebs' cycle and the electron transport system is the formation of

  1. ATP in one large oxidation reaction
  2. sugars
  3. nucleic acids
  4. ATP in small stepwise units
AIPMT 2007

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All NEET Botany chapters
Class 11The Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisionTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and Development
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