v 1)
The family in which many plants are
C4
type
A) Malvaceae
B) Solanaceae
C) Crucifereae
D) Graminae
v 2) The enzymes of dark reaction in
C4
plants are found in
A) Bundle sheath chloroplast
B) Mesophyll chloroplast
C) Both [a] and [b]
D) None of the above
v 3) Which of the chloroplast does not contain grana
A) Pea leaf
B) Hydrophytic stem
C) Bundle sheath of sugarcane leaf
D) Mesophyll of grasses
v 4) Conversion of oxaloacetic acid into malic acid is
A) Oxidation
B) Reduction
C) Carboxylation
D) Hydroxylation
v 5) Which of the following enzyme is responsible for the conversion
of oxaloacetic acid into malic acid
A) PEP oxidase
B) PEP reductase
C) PEP
dismutase
D) Malate
dehydrogenase
v 6) Which of the following is required for transformation of
oxaloacetic acid into malic acid
A) NADP
B)
NADPH2
C) Both [a] and [b]
D) None of the above
v 7) In succulent xerophytes, there is accumulation of malic acid in
night, this path of
CO2
metabolism is called
A) Beta carboxylation
B) Hatch and Slack cycle
C) Crassulacean acid metabolism
D) Calvin cycle
v 8) In
C4
plants mesophyll cells are
connected with bundle sheath cells with the help of
A) Cytoplasmic connections
B) Special connecting tissues
C) Plasmodesmata
D) Connection is not essential
v 9) Which of the plants can show CAM cycle
A) Members of graminae
B) Members of cactaceae
C) Members of chenopodiaceae
D) All the above
v 10) Which of the following is shown by CAM plants
A) Light acidification
B) Dark deacidification
C) Dark acidification
D) None of the above
v 11) The energy wastage occurs during [MP PMT 1988]
A) Dark respiration
B) Photosynthesis
C) Glycolysis
D) Photorespiration
v 12) In case of
C4
pathway [MP PMT 1989; BHU 1982;
CPMT 1994; EAMCET 1995]
A)
CO2
combines with PGA
B)
CO2
combines with PEP
C)
CO2
combines with RuDP
D)
CO2
combines with RMP
v 13) Which one is a
C4
plant [BHU 1979, 82; DPMT 1984;
CBSE PMT 1988; MP PMT 1993, 95]
A) Papaya
B) Pea
C) Potato
D) Maize
v 14)
C4
plants are also known as [MP PMT
1986]
A) Hatch and Slack type
B) Calvin type
C) Calvin and Bassham type
D) Emerson type
v 15) In
C4
plants, Calvin cycle occurs in
[CBSE PMT 1989, 94; CPMT 2005]
A) Stroma of bundle sheath chloroplast
B) Mesophyll chloroplast
C) Grana of bundle sheath chloroplast
D) Does not occur as
CO2
is fixed mainly by PEP and
no
CO2
is left for Calvin cycle
v 16) Tropical plant like sugarcane show high efficiency of
CO2
fixation because of [BHU 1978, 82;
MP PMT 1986, 87, 90]
A) Calvin cycle
B) Hatch and Slack cycle
C) EMP pathway
D) TCA cycle
v 17)
C4
photosynthesis does not occur in
[MP PMT 1990, 2000; CPMT 1994]
A) Zea mays
B) Saccharum munja
C) Saccharum officinarum
D) Euphorbia splendens
v 18) Which of the following is
CO2
acceptor in
C4
plants [CPMT 1986,2004; AMU
1987; CBSE PMT 1990; BHU 1994, 2000; MP PMT 1996; CPMT 1998; Orissa PMT 2002;
BVP 2002]
A) Phosphoenol pyruvate (PEP)
B) Ribulose 1, 5 diphosphate (RuDP)
C) Oxaloacetic acid (OAA)
D) Phosphoglyceric acid (PGA)
v 19) Which of the following cycle shows oxaloacetic acid as first
stable product
A) Calvin cycle
B) Hatch and Slack cycle
C)
C2
cycle
D) None of the above
v 20) Kranz type of anatomy is found in [CBSE PMT 1990; CPMT 1986;
AMU 1986; RPMT 1995, 97]
A)
C2
plants
B)
C3
plants
C)
C4
plants
D) CAM plants
v 21) Which of the following is a CAM plant
A) Maize
B) Sugarcane
C) Agave
D) Mango
v
22)
A) Hot and dry climate
B) Temperate climate
C) Cold and dry climate
D) Hot and humid climate
v 23) Which one of the following is wrong in relation to
photorespiration [CBSE PMT 2003]
A) It is a characteristic of
C3
plants
B) It occurs in chloroplasts
C) It occurs in day time only
D) It is a characteristic of
C4
plants
v 24) Atriplex spongiosa is a
A)
C3
plant
B)
C4
plant
C) CAM plant
D) All the above
v 25) Dimorphism of chloroplast is found in
A)
C4
plants
B)
C3
plants
C) CAM plants
D) All the above
v 26) In CAM cycle, during formation of maleic acid, stomata remains
A) Open
B) Closed
C) Semiopen
D) Always closed
v 27) Which one of the following is
C4
plant
A) Spirogyra
B) Pinus
C) Sorghum
D) Funaria
v 28) Agranal chloroplasts occur in certain [MP PMT 1995, 98]
A)
Succulents
B)
C4
Plants
C)
Hydrophytes
D)
C3
plants
v 29) Which of the following is essential for the normal growth
of
C4
plants
A) Silicon (100 m)
B) Vanadium
(100μm)
C) Sodium (100 m)
D) Barium (100 m)
v 30) Which of the following plants stand intermediate between
C3
and
C4
plants
A) Triticum aestivum
B) Zea mays
C) Panicum milioides
D) All the above
v 31) The mean photosynthetic rates of
C3
and
C4
plants per
dm2
per hour are respectively
A) 10 mg and 20 mg
B) 90 mg and 22 mg
C) 22 mg and 75 mg
D) 75 mg and 22 mg
v 32) Water budget required to produce 1 gm of dry matter by
C3
and
C4
plant is approximately
A) 610 gm each
B) 300 gm each
C) 300 gm and 610 gm respectively
D) 610 gm and 300 gm respectively
v 33) Which of the following anatomical features characterize a
C4
plant
A) Chloroplast packed bundle sheath cells
B) Small-sized stomatal pores
C) More compact mesophyll with reduced intercellular spaces
D) All the above
v 34) Correlation between 'Kranz' anatomy and
C4
path of
CO2
assimilation was first established
by
A) Hill and Bendall
B) Calvin
C) Dowton and Treguna
D) Arnold
v 35) The first
CO2
acceptor in
C4
cycle is [MHCET 2002]
A) PGA
B) PEP
C) RuDP
D) DHA
v 36) Members of family Crassulaceae perform [MHCET 2004]
A)
C3
photosynthesis
B) CAM photosynthesis
C)
C4
photosynthesis
D) All of the above
v 37) How many types of photosynthetic cells occur in
C4
plant
A) One type
B) Two types
C) Four types
D) Eight types
v 38) Which of the following cells of
C4
plants are prominently loaded with
starch
A) Epidermal cells
B) Mesophyll cells
C) Bundle sheath cells
D) All the above
v 39) Which of the following is the main product in the
photorespiration of
C3
plants [CPMT 1999]
A) Phosphoglycerate
B) Phosphoglycolate
C) Glycerate
D) Glycolate
v 40) Sugarcane show high efficiency of
CO2
fixation because of [CPMT
2004]
A) Calvin cycle
B) Hatch and Slack cycle
C) TCA cycle
D) Greater sunlight
v 41) In
C4−
plants, the carbon dioxide fixation
occurs in [BHU 2004]
A) Guard cells
B) Spongy cells
C) Palisade cells
D) Bundle sheath cells
v 42) In
C4
plants,
CO2
combines with [BVP 2001]
A) Phosphoglyceric acid
B) Ribulose biphosphate
C) Phosphoenol pyruvate
D) Phosphoglyceraldehyde
v 43) Photosynthesis in
C4
plants is relatively less limited by atmospheric
CO2
levels because [CBS PMT 2005]
A) Four carbon acids are the primary initial
CO2
fixation products
B) The primary fixation of
CO2
is mediated via PEP carboxylase
C) Effective pumping of
CO2
into bundle sheath cells
D) Rubisco in
C4
plants have higher affinity for
CO2
v 44) Which of the following process shows light deacidification and
night acidification
A) CAM cycle
B)
C3
cycle
C)
C4
cycle
D) All the above
v 45) CAM photosynthesis occurs in plants with [MP PMT 1993]
A) Thin green leaves with reticulate venation
B) Thin green leaves with parallel venation
C) Fleshy green leaves
D) Thin coloured leaves
v 46) In which type of plants PEP is th
CO2
e receptor [CPMT 1998]
A)
C3
B)
C4
C) Both [a] and [b]
D) None of these
v 47) In sugarcane plant
14CO2
is fixed in malic acid, in
which the enzyme that fixes
CO2
is [CBSE PMT 1999]
A) Fructose phosphatase
B) Ribulose biphosphate carboxylase
C) Phosphoenol pyruvic acid carboxylase
D) Ribulose phosphate kinase
v 48) Which of the following is not a
C4
plant
A) Sugarcane
B) Maize
C) Sorghum
D) Wheat
v 49) Which of the statements is not true of the
C4
pathway [AIEEE 2004]
A) It requires more energy than the
C3
pathway for production of
glucose
B) It overcomes loss due to photorespiration
C) The
CO2
acceptor is a
C3
compound
D) It is inhibited by high
CO2
concentration
v 50) Photorespiration is called [MHCET 2000]
A)
C2
Cycle
B)
C3
Cycle
C)
C4
Cycle
D) None of these
v 51) The first reaction in photorespiration is [RPMT 1999; CBSE PMT
2000; CPMT 2001]
A) Carboxylation
B) Decarboxylation
C) Oxygenation
D) Phosphorylation
v 52) In photorespiration glycolate is converted to
CO2
and serine in [AIEEE 2003]
A) Chloroplasts
B) Peroxisomes
C) Vacuoles
D) Mitochondria
v 53) No. of carboxylation in
C4
cycle is/are [DPMT 2003]
A) 1
B) 2
C) 5
D) 3
v 54) In Hatch and Slack pathway [BHU
2003]
A) Chloroplast are of same type
B) Occurs in Kranz anatomy where mesophyll have small
chloroplast whereas bundle sheath has agranal chloroplast
C) Occurs in Kranz anatomy when mesophyll have small chloroplast
where a bundle sheath has larger chloroplast
D) Kranz anatomy where mesophyll cell is diffused
v 55) Photorespiration takes place only in [MHCET 2003]
A) Lysosomes of plant cell
B) Green parts of the plant
C) Mitochondria of plant cell
D) None of these
v 56) Peroxisomes are found in [Orissa JEE 2005]
A) Bundle sheath
B) Endospem
C) Mesophyll cells
D) Vascular bundle
v 57) Peroxisome are related with [MP PMT 2005; AMU 2005]
A) Photosynthesis
B) Photorespiration
C) Respiration
D) None
v 58) Photorespiration takes place is [CPMT 2005]
A) Chloroplast, mitochondria
B) Mitochondria, peroxisome
C) Chloroplasts, peroxisome, mitochondria
D) Chloroplasts, cytoplasm, mitochondria
v 59) Which one is false about kranz anatomy [CPMT 2005]
A) Bundle sheath have large chloroplast and less developed grana
B) Mesophyll cells have large chloroplast and more
C) It is found in Atriplex, sugarcane, maize
D) Plant having it have better photosynthesizing power than
C3
plants
v 60)
C4
plant shows efficiency even in [Haryana PMT 2005]
A) Low
CO2
concentration
B) Low temperature
C) High
O2
concentration
D) At low water
v 61) Source of
CO2
for photosynthesis during day in CAM plant is [CPMT 2005]
A) 3-PGA
B) Malic acid
C) Oxalo-acetic acid
D) Pyruvate
v 62) In maximum plants stomata open during day and closed in night.
Its exception is [Pb. PMT 2004; AMU 2005]
A) Crassulacean acid metabolism plants
B)
C3
plants
C)
C4
plants
D) None of these
v
63) .............is a CAM plant [Orissa JEE 2005]
A) Maize
B) Pineapple
C) Onion
D) Pea
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