PYQSide ExamsMy practice

Photosynthesis in Higher Plants · Question 41

AIPMT 2012 (Prelims)MCQEasy📈 Topic in 25% papers+4−1
1

The correct sequence of cell organelles during photorespiration is

  1. chloroplast, Golgi-bodies, mitochondria
  2. chloroplast, rough endoplasmic reticulum, dictyosomes
  3. chloroplast, peroxisome, mitochondria
  4. chloroplast, vacuole, peroxisome.

Answer

(3) chloroplast, peroxisome, mitochondria

Solution

⇒ Photorespiration begins in the chloroplast: RuBisCO acts as oxygenase and RuBP + O2 gives phosphoglycerate and phosphoglycolate.

⇒ Glycolate moves to the peroxisome, where it is oxidised to glyoxylate and converted to glycine.

⇒ Glycine enters the mitochondrion, where two glycine give serine with release of CO2.

∴ The sequence is chloroplast → peroxisome → mitochondria.

Answer: (3)

AIPMT 2012 (Prelims)

Keep practising — Photosynthesis in Higher Plants

2

In Kranz anatomy, the bundle sheath cells have

  1. thin walls, many intercellular spaces and no chloroplasts
  2. thick walls, no intercellular spaces and large number of chloroplasts
  3. thin walls, no intercellular spaces and several chloroplasts
  4. thick walls, many intercellular spaces and few chloroplasts.
AIPMT 2011 (Mains)
3

CAM helps the plants in

  1. conserving water
  2. secondary growth
  3. disease resistance
  4. reproduction.
AIPMT 2011 (Prelims)
4

Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PS I only. (ii) Only PS I is functional in cyclic photophosphorylation. (iii) Cyclic photophosphorylation results into synthesis of ATP and NADPH2. (iv) Stroma lamellae lack PS II as well as NADP reductase.

  1. (ii) and (iv)
  2. (i) and (ii)
  3. (ii) and (iii)
  4. (iii) and (iv)
AIPMT 2010 (Mains)
5

Kranz anatomy is one of the characteristics of the leaves of

  1. potato
  2. wheat
  3. sugarcane
  4. mustard
AIPMT 2010 (Mains)
6

Study the pathway given below: [figure] In which of the following options correct words for all the three blanks A, B and C are indicated?

  1. A Fixation, B Transamination, C Regeneration
  2. A Decarboxylation, B Reduction, C Regeneration
  3. A Carboxylation, B Decarboxylation, C Reduction
  4. A Fixation, B Decarboxylation, C Regeneration
AIPMT 2010 (Mains)
7

PGA as the first CO2 fixation product was discovered in photosynthesis of

  1. bryophyte
  2. gymnosperm
  3. angiosperm
  4. alga
AIPMT 2010 (Prelims)
8

C4 plants are more efficient in photosynthesis than C3 plants due to

  1. higher leaf area
  2. presence of larger number of chloroplasts in the leaf cells
  3. presence of thin cuticle
  4. lower rate of photorespiration
AIPMT 2010 (Prelims)
9

Cyclic photophosphorylation results in the formation of

  1. ATP and NADPH
  2. ATP, NADPH and O2
  3. ATP
  4. NADPH.
AIPMT 2009
10

Stroma in the chloroplasts of higher plants contains

  1. light-dependent reaction enzymes
  2. ribosomes
  3. chlorophyll
  4. light-independent reaction enzymes.
AIPMT 2009
11

Electrons from excited chlorophyll molecule of photosystem II are accepted first by

  1. quinone
  2. ferredoxin
  3. cytochrome-b
  4. cytochrome-f
AIPMT 2008

All Photosynthesis in Higher Plants PYQs →

PDFDownload Photosynthesis in Higher Plants PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
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
Class 12Reproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental Issues
Other chaptersBiomolecules (Biology)