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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Photosynthesis Set 6
Q1 | The two enzymes responsible for primary carboxylation in C3 and C4 pathway, respectively are
- RuBP carboxylase and RuBP oxygenase
- PEP carboxylase and RuBP carboxylase
- RuBP carboxylase and PEP carboxylase
- PEP carboxylase and pyruvate carboxylase
Q2 | _______ are placed one above the other to form stack of coins
- oxysome
- F1 particles
- cristae
- thylakoids
Q3 | Unidirectional flow of e- in non-cyclic photophosphorylation is
- PSII PS-I NADP water
- Water PS-II PS-I NADP
- PSI NADP water PS II
- Water PSI PSII NADP
Q4 | The head and tail of chlorophyll are made up of
- Pyrrole and tetrapyrrole
- Porphyrine and phyrin
- Pophyrine and phytol
- Tetrapyrrole and magnesium
Q5 | The numbner of photons needed for the evolution of one molecule of oxygen is
- 8
- 2
- 12
- 18
Q6 | Action spectrum is
- A graph showing amount of light absorbed
- A graph showing rate of photosynthesis
- A graph showing absorption of light
- A graph showing amount of CO2 released
Q7 | C40H56O2 is molecular formula of
- Xanthophyll
- Carotenes
- Chlorophylls
- Phycobillins
Q8 | Quantasome contains
- 150-200 chlorophyll molecule
- 200 chlorophyll molecules
- 230-250 chlorophyll molecules
- 300-350 chlorophyll molecules
Q9 | Erythrose monophosphate (4C) is formed during
- CAM pathway
- C4 pathway
- Conversion of fructose to glucose
- Regeneration of RuBP
Q10 | Donor and acceptor of electrons is the same chlorophyll molecule in
- Cyclic phtophosphorylation
- Photorespiration
- Substrate level phosphorylation
- Non-cyclic photophosphorylation
Q11 | If a photosynthsing plant releases O18, it is concluded that the plant has been supplied with
- Water containing O18
- Oxygen in the form of ozone
- Sugar containing O18
- Carbon dioxide containing O18
Q12 | Which of the following connet the primary and secondary processes of photosynthesis?
- NADPH2
- ATP and NADPH2
- ATP
- Ferridoxins
Q13 | C4 plants can perform photosynthesis
- Even in low light intensity
- Even in low CO2 concentration
- Both (A) and (B)
- Only in high intensity of light and high CO2
Q14 | In Hill’s experiment, Hill used ______ as oxygen acceptor,
- Hydrogen
- FAD
- NADP
- Haemoglobin
Q15 | Fret channel is a another name for
- Stroma lamellae
- Intergranal lamellae
- Grana lamellae
- Space present in stroma lamellae
Q16 | Bundle sheath chloroplast of C4 plants are
- Large and agranal
- Large and granal
- Small and granal
- Small and agranal
Q17 | In C3 pathway, out of 12 molecules of 3-PGAL, how many are used for regeneration of RuBP?
- 12
- 8
- 10
- 6
Q18 | A plant is kept in 300 ppm CO2 concentration. What will happen to it
- Plant will die soon
- Plant will grow but will not die
- Plant will show normal photosynthesis
- Respiration will be greatly decreased
Q19 | All plastids have essentially same structure because
- They have to perform same function
- They are localized in aerial parts of plants
- All plastids store starch, lipid and proteins
- One type of plastid can be differentiated into another type of plastid depending on cell requirements
Q20 | Give the correct name of indicated part A and B (CHART)
- A- cytocrome-a & a3 B -Thylakoid
- A- Thylakoid B-cytocrome-a & a3
- A- cytocrome-b& f B-Thylakoid
- A- cytopalsm B-Thylakoid
Q21 | Which animals have developed capacity of regeneration ?
- Hydra, Starfish
- Plasmodium
- Earthworm
- Spongilla
Q22 | Sporulation occurs in...........
- Plasmodium
- Hydra
- Starfish
- Spongilla
Q23 | Which plant reproduce vegetatively by roots ?
- Oxali
- Bryophyllum
- Onion
- Dahlia
Q24 | Which plant performs vegetative reproduction with the help of floral buds ?
- Agave
- Bryophyllum
- Ginger
- Asparagus
Q25 | Which part of the plant bryophyllum performs vegetative reproduction ?
- Stem
- Floral buds
- Underground roots
- Buds on life margin