16009.Besides water and light, which is more essential as a raw material for food formation
O2
CO2
Mineral salts
NAD
16010.During photosynthesis, which of the followings acts as a reservoir for hydrogen ions?
Cristae
Stroma
Thylakoid space
Matrix
16012.In which type of reactions related to plant photosynthesis peroxisomes are involved?
Glycolate cycle
Calvin cycle
Bacterial photosynthesis
Glyoxylate cycle
16013.In a CAM plant the concentration of organic acid
increases during the day
decreases or increases during the day
increases during night
decreases during any time
16015.Cyclic photophosphorylation results in the formation of
ATP
NADPH
ATP and NADPH
ATP, NADPH and O2
16017.Manganese is required in
Chlorophyll synthesis
Nucleic acid synthesis
Plant cell wall formation
Photolysis of water during photosynthesis
16018.______ contains green chlorophyll and other pigments.
Stroma
Cristae
Matrix
Thylakoid membrane
16019.Oxidative phosphorylation refers to
Anaerobic production of ATP
The citric acid cycle production of ATP
Production of ATP by chemiosmosis
Alcoholic fermentation
16020.Each chloroplast contains a flattened membranous sac called ______.
Stroma
Cristae
Matrix
Thylakoids
16021.Bacterial photosynthesis involves
PS I only
PS II only
Both PS I and PS II
Either PS I or PS II
16023.When thylakoids absorb solar energy the reactions that begin are:
Glycolysis
Light-independent
Light-dependent
Fermentation
16024.Stomatal opening is affected by
Nitrogen concentration, carbon dioxide concentration and light
Carbon dioxide concentration, temperature and light
Nitrogen concentration, light and temperature
Carbon dioxide concentration, nitrogen concentration and temperature
16025.The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because
There is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP)
High energy bonds are formed in mitochondrial proteins
ADP is pumped out of the matrix into the intermembrane space
A proton gradient forms across the inner membrane
16026.Who enunciated the law of limiting factor for photosynthesis?
Robert Emerson
Ruben
Blackman
Calvin
16028.In Photosynthesis energy from light reaction to dark reaction is transferred in the form of:
RUDP
ATP
ADP
Chlorophyll
16029.PGA as the first CO2 fixation product was discovered in photosynthesis of
Alga
Bryophyte
Gymnosperm
Angiosperm
16031.Which one of the following statement is true for ATP?
ATP is prosthetic part of an enzyme
ATP is an enzyme
ATP is organic ions of enzyme
ATP is a Co-enzyme
16032.The metabolic pathway which produces carbohydrate is
Calvin cycle
Glycolysis
Cyclic electron pathway
Kreb`s cycle
16033.Glycolysis
Takes place in the mitochondria
Produces no ATP
Has no connection with electron transport chain
Reduces two molecules of NAD+ for every glucose molecule processed
16034.In ______ NADP is converted into NADPH2.
Photolysis
Cyclic photophosphorylation
Noncyclic photophosphorylation
Oxidative phosphorylation
16035.Which one of the following doesn't play any role in photosynthesis?
Phycocyanin
Xanthophylls
Phycoerythrin
Anthocyanin
16036.Where does bulk fixation of carbon through photosynthesis take place?
Crop plants
Oceans
Tropical rain forests
Tropical rain forests and crop plants
16037.The correct sequence of cell organelles during photorespiration is
Chloroplast, – peroxisome, – mitochondria
Chloroplast, – vacuole, – peroxisome
Chloroplast, – Golgibodies, – mitochondria
Chloroplast, – Rough endoplasmic reticulum, – Dictyosomes
16038.The C4 plants are photosynthetically more efficient than C3 plants because
They have more chloroplasts
The CO2 compensation point is more
CO2 generated during photorespiration is trapped and recycled through PEP carboxylase
The CO2 efflux is not prevented
16039.In C4 plants, the bundle sheath cells
Have thin walls to facilitate gaseous exchange
Have large intercellular spaces
Are rich in PEP carboxylase
Have a high density of chloroplasts
16040.In leaves of C4 plants malic acid synthesis during CO2 fixation occurs in:
Guard cells
Epidermal cells
Mesophyll cells
Bundle sheath
16041.Which pigment absorbs the red and far red light?
Cytochrome
Phytochrome
Carotenoids
Chlorophyll
16042.In C4 plants, carboxylation is twice, it can be represented as
Pyruvic acid + CO2 malic acid + CO2
RUDP + CO2 and pyruvic acid + CO2
PEPA + CO2 and RUDP + CO2
PEPA + CO2 and malic acid + CO2
16043.Which of the following is a 4-carbon compound?
Oxaloacetic acid
Phosphoglyceric acid
Ribulose biphosphate
Phosphoenolpyruvate
16044.Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?
Red and violet
Green and red
Blue and green
Violet and blue
16045.The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist who proposed this law.
Blackman
Calvin
Weismann
Emerson
16047.The organisms that photosynthesizes but do not evolve any molecular oxygen during the process
Blue green algae
Mango plant
Sulphur bacteria
Both 1 and 3
16048.In C4 pathway or C4 photosynthesis carbobn dioxide fication occures in chloroplast of
Palisade tissue
Spongy mesophyll
Bundle sheath
Guard cells
16049.In C4 plants, the bundle sheath cells
Are rich in PEP carboxylase
Have large intercellular spaces
Have thin walls to facilitate gaseous exchange
Have a high density of chloroplasts
16050.In C3 plants, the first stable product of photosynthesis during the dark reaction is:
Phosphoglyceraldehyde
3-phosphoglyceric acid
Oxaloacetic acid
Malic acid
16051.Etiolation in plants is caused when
They are grown in intense light
They have mineral deficiency
They are grown in dark
They are grown in blue light
16052.Chloroplast dimorphism is a characteristic feature of
Plants with Calvin cycle
C4-Plants
All plants
Only in algae
16053.Match the following two lists and select the most accurate option.
| List I | List II |
|---|---|
| A. Oxygen evolving complex ferric oxalate | I. Potassium |
| B. Proton gradient concentration | II. High oxygen |
| C. Hill reagent | III. ATP synthesis |
| D. Photo-respiration | IV. Pheophytin |
| V. Photolysis of water |
A - V, B - III, C - I, D - II
A - I, B - II, C - IV, D - V
A - V, B - I, C - IV, D - II
A - I, B - IV, C - III, D - V
16054.In Kranz anatomy, the bundle sheath cells have
Thin walls, no intercellular spaces and several chloroplasts
Thick walls, many intercellular spaces and few chloroplasts
Thin walls, many intercellular spaces and no chloroplasts
Thick walls, no intercellular spaces and large number of chloroplasts
16055.
Assertion : The atmospheric concentration of CO2 at which photosynthesis just compensates for respiration is referred to as CO2 compensation point.
Reason : The CO2 compensation point is reached when the amount of CO2 uptake is less than that generated through respiration because the level of CO2 in the atmosphere is more than that required for achieving CO2 compensation point.
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
Assertion is true statement but Reason is false.
Both Assertion Reason are false statements.
16056.In photosystem-I, the first electron acceptor is
Plastocyanin
Cytochrome
Ferredoxin
An iron sulphur protein
16058.Maize, sugarcane and some other tropical plants have high efficiency of CO2 fixation because they operate
Calvin cycle
Hatch – Slack cycle
TCA cycle
PP pathway