-
question_answer1)
The family in which many plants are\[{{C}_{4}}\]type
A)
Malvaceae done
clear
B)
Solanaceae done
clear
C)
Crucifereae done
clear
D)
Graminae done
clear
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question_answer2)
The enzymes of dark reaction in\[{{C}_{4}}\]plants are found in
A)
Bundle sheath chloroplast done
clear
B)
Mesophyll chloroplast done
clear
C)
Both [a] and [b] done
clear
D)
None of the above done
clear
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question_answer3)
Which of the chloroplast does not contain grana
A)
Pea leaf done
clear
B)
Hydrophytic stem done
clear
C)
Bundle sheath of sugarcane leaf done
clear
D)
Mesophyll of grasses done
clear
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question_answer4)
 Conversion of oxaloacetic acid into malic acid is
A)
Oxidation done
clear
B)
Reduction done
clear
C)
Carboxylation done
clear
D)
Hydroxylation done
clear
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question_answer5)
Which of the following enzyme is responsible for the conversion of oxaloacetic acid into malic acid
A)
PEP oxidase done
clear
B)
PEP reductase done
clear
C)
PEP dismutase done
clear
D)
Malate dehydrogenase done
clear
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question_answer6)
Which of the following is required for transformation of oxaloacetic acid into malic acid
A)
NADP done
clear
B)
\[NADP{{H}_{2}}\] done
clear
C)
Both [a] and [b] done
clear
D)
None of the above done
clear
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question_answer7)
In succulent xerophytes, there is accumulation of malic acid in night, this path of\[C{{O}_{2}}\]metabolism is called
A)
Beta carboxylation done
clear
B)
Hatch and Slack cycle done
clear
C)
Crassulacean acid metabolism done
clear
D)
Calvin cycle done
clear
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question_answer8)
In\[{{C}_{4}}\]plants mesophyll cells are connected with bundle sheath cells with the help of
A)
Cytoplasmic connections done
clear
B)
Special connecting tissues done
clear
C)
Plasmodesmata done
clear
D)
Connection is not essential done
clear
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question_answer9)
Which of the plants can show CAM cycle
A)
Members of graminae done
clear
B)
Members of cactaceae done
clear
C)
Members of chenopodiaceae done
clear
D)
All the above done
clear
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question_answer10)
Which of the following is shown by CAM plants
A)
Light acidification done
clear
B)
Dark deacidification done
clear
C)
Dark acidification done
clear
D)
None of the above done
clear
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question_answer11)
The energy wastage occurs during [MP PMT 1988]
A)
Dark respiration done
clear
B)
Photosynthesis done
clear
C)
Glycolysis done
clear
D)
Photorespiration done
clear
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question_answer12)
In case of\[{{C}_{4}}\]pathway [MP PMT 1989; BHU 1982; CPMT 1994; EAMCET 1995]
A)
\[C{{O}_{2}}\]combines with PGA done
clear
B)
\[C{{O}_{2}}\]combines with PEP done
clear
C)
\[C{{O}_{2}}\]combines with RuDP done
clear
D)
\[C{{O}_{2}}\]combines with RMP done
clear
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question_answer13)
Which one is a\[{{C}_{4}}\]plant [BHU 1979, 82; DPMT 1984; CBSE PMT 1988; MP PMT 1993, 95]
A)
Papaya done
clear
B)
Pea done
clear
C)
Potato done
clear
D)
Maize done
clear
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question_answer14)
\[{{C}_{4}}\]plants are also known as [MP PMT 1986]
A)
Hatch and Slack type done
clear
B)
Calvin type done
clear
C)
Calvin and Bassham type done
clear
D)
Emerson type done
clear
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question_answer15)
In \[{{C}_{4}}\]plants, Calvin cycle occurs in [CBSE PMT 1989, 94; CPMT 2005]
A)
Stroma of bundle sheath chloroplast done
clear
B)
Mesophyll chloroplast done
clear
C)
Grana of bundle sheath chloroplast done
clear
D)
Does not occur as \[C{{O}_{2}}\]is fixed mainly by PEP and no \[C{{O}_{2}}\]is left for Calvin cycle done
clear
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question_answer16)
Tropical plant like sugarcane show high efficiency of\[C{{O}_{2}}\]fixation because of [BHU 1978, 82; MP PMT 1986, 87, 90]
A)
Calvin cycle done
clear
B)
Hatch and Slack cycle done
clear
C)
EMP pathway done
clear
D)
TCA cycle done
clear
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question_answer17)
\[{{C}_{4}}\]photosynthesis does not occur in [MP PMT 1990, 2000; CPMT 1994]
A)
Zea mays done
clear
B)
Saccharum munja done
clear
C)
Saccharum officinarum done
clear
D)
Euphorbia splendens done
clear
View Solution play_arrow
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question_answer18)
Which of the following is \[C{{O}_{2}}\] acceptor in \[{{C}_{4}}\] 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) done
clear
B)
Ribulose 1, 5 diphosphate (RuDP) done
clear
C)
Oxaloacetic acid (OAA) done
clear
D)
Phosphoglyceric acid (PGA) done
clear
View Solution play_arrow
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question_answer19)
Which of the following cycle shows oxaloacetic acid as first stable product
A)
Calvin cycle done
clear
B)
Hatch and Slack cycle done
clear
C)
\[{{C}_{2}}\]cycle done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer20)
Kranz type of anatomy is found in [CBSE PMT 1990; CPMT 1986; AMU 1986; RPMT 1995, 97]
A)
\[{{C}_{2}}\]plants done
clear
B)
\[{{C}_{3}}\]plants done
clear
C)
\[{{C}_{4}}\]plants done
clear
D)
CAM plants done
clear
View Solution play_arrow
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question_answer21)
Which of the following is a CAM plant
A)
Maize done
clear
B)
Sugarcane done
clear
C)
Agave done
clear
D)
Mango done
clear
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question_answer22)
 \[{{C}_{4}}\]plants are adapted to [AIIMS 1984, BHU 2002]
A)
Hot and dry climate done
clear
B)
Temperate climate done
clear
C)
Cold and dry climate done
clear
D)
Hot and humid climate done
clear
View Solution play_arrow
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question_answer23)
Which one of the following is wrong in relation to photorespiration [CBSE PMT 2003]
A)
It is a characteristic of\[{{C}_{3}}\]plants done
clear
B)
It occurs in chloroplasts done
clear
C)
It occurs in day time only done
clear
D)
It is a characteristic of\[{{C}_{4}}\]plants done
clear
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question_answer24)
Atriplex spongiosa is a
A)
\[{{C}_{3}}\]plant done
clear
B)
\[{{C}_{4}}\]plant done
clear
C)
CAM plant done
clear
D)
All the above done
clear
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question_answer25)
Dimorphism of chloroplast is found in
A)
\[{{C}_{4}}\]plants done
clear
B)
\[{{C}_{3}}\]plants done
clear
C)
CAM plants done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer26)
In CAM cycle, during formation of maleic acid, stomata remains
A)
Open done
clear
B)
Closed done
clear
C)
Semiopen done
clear
D)
Always closed done
clear
View Solution play_arrow
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question_answer27)
Which one of the following is \[{{C}_{4}}\] plant
A)
Spirogyra done
clear
B)
Pinus done
clear
C)
Sorghum done
clear
D)
Funaria done
clear
View Solution play_arrow
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question_answer28)
Agranal chloroplasts occur in certain [MP PMT 1995, 98]
A)
Succulents done
clear
B)
\[{{C}_{4}}\]plants done
clear
C)
Hydrophytes done
clear
D)
\[{{C}_{3}}\]plants done
clear
View Solution play_arrow
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question_answer29)
Which of the following is essential for the normal growth of \[{{C}_{4}}\] plants
A)
Silicon (100 m) done
clear
B)
Vanadium\[(100\mu m)\] done
clear
C)
Sodium (100 m) done
clear
D)
Barium (100 m) done
clear
View Solution play_arrow
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question_answer30)
Which of the following plants stand intermediate between\[{{C}_{3}}\]and\[{{C}_{4}}\]plants
A)
Triticum aestivum done
clear
B)
Zea mays done
clear
C)
Panicum milioides done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer31)
The mean photosynthetic rates of\[{{C}_{3}}\]and\[{{C}_{4}}\]plants per\[d{{m}^{2}}\]per hour are respectively
A)
10 mg and 20 mg done
clear
B)
90 mg and 22 mg done
clear
C)
22 mg and 75 mg done
clear
D)
75 mg and 22 mg done
clear
View Solution play_arrow
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question_answer32)
Water budget required to produce 1 gm of dry matter by\[{{C}_{3}}\]and\[{{C}_{4}}\]plant is approximately
A)
610 gm each done
clear
B)
300 gm each done
clear
C)
300 gm and 610 gm respectively done
clear
D)
610 gm and 300 gm respectively done
clear
View Solution play_arrow
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question_answer33)
Which of the following anatomical features characterize a\[{{C}_{4}}\]plant
A)
Chloroplast packed bundle sheath cells done
clear
B)
Small-sized stomatal pores done
clear
C)
More compact mesophyll with reduced intercellular spaces done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer34)
Correlation between 'Kranz' anatomy and\[{{C}_{4}}\]path of\[C{{O}_{2}}\]assimilation was first established by
A)
Hill and Bendall done
clear
B)
Calvin done
clear
C)
Dowton and Treguna done
clear
D)
Arnold done
clear
View Solution play_arrow
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question_answer35)
The first \[C{{O}_{2}}\] acceptor in \[{{C}_{4}}\] cycle is [MHCET 2002]
A)
PGA done
clear
B)
PEP done
clear
C)
RuDP done
clear
D)
DHA done
clear
View Solution play_arrow
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question_answer36)
Members of family Crassulaceae perform [MHCET 2004]
A)
\[{{C}_{3}}\] photosynthesis done
clear
B)
CAM photosynthesis done
clear
C)
\[{{C}_{4}}\]photosynthesis done
clear
D)
All of the above done
clear
View Solution play_arrow
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question_answer37)
How many types of photosynthetic cells occur in\[{{C}_{4}}\]plant
A)
One type done
clear
B)
Two types done
clear
C)
Four types done
clear
D)
Eight types done
clear
View Solution play_arrow
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question_answer38)
Which of the following cells of \[{{C}_{4}}\]plants are prominently loaded with starch
A)
Epidermal cells done
clear
B)
Mesophyll cells done
clear
C)
Bundle sheath cells done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer39)
Which of the following is the main product in the photorespiration of\[{{C}_{3}}\]plants [CPMT 1999]
A)
Phosphoglycerate done
clear
B)
Phosphoglycolate done
clear
C)
Glycerate done
clear
D)
Glycolate done
clear
View Solution play_arrow
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question_answer40)
Sugarcane show high efficiency of \[C{{O}_{2}}\] fixation because of  [CPMT 2004]
A)
Calvin cycle done
clear
B)
Hatch and Slack cycle done
clear
C)
TCA cycle done
clear
D)
Greater sunlight done
clear
View Solution play_arrow
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question_answer41)
In \[{{C}_{4}}-\]plants, the carbon dioxide fixation occurs in [BHU 2004]
A)
Guard cells done
clear
B)
Spongy cells done
clear
C)
Palisade cells done
clear
D)
Bundle sheath cells done
clear
View Solution play_arrow
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question_answer42)
In \[{{C}_{4}}\]plants,\[C{{O}_{2}}\] combines with [BVP 2001]
A)
Phosphoglyceric acid done
clear
B)
Ribulose biphosphate done
clear
C)
Phosphoenol pyruvate done
clear
D)
Phosphoglyceraldehyde done
clear
View Solution play_arrow
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question_answer43)
Photosynthesis in \[{{C}_{4}}\]plants is relatively less limited by atmospheric \[C{{O}_{2}}\] levels because [CBS PMT 2005]
A)
Four carbon acids are the primary initial \[C{{O}_{2}}\] fixation products done
clear
B)
The primary fixation of \[C{{O}_{2}}\] is mediated via PEP carboxylase done
clear
C)
Effective pumping of \[C{{O}_{2}}\] into bundlesheath cells done
clear
D)
Rubisco in \[{{C}_{4}}\]plants has higher affinity for \[C{{O}_{2}}\] done
clear
View Solution play_arrow
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question_answer44)
Which of the following process shows light deacidification and night acidification
A)
CAM cycle done
clear
B)
\[{{C}_{3}}\]cycle done
clear
C)
\[{{C}_{4}}\]cycle done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer45)
CAM photosynthesis occurs in plants with [MP PMT 1993]
A)
Thin green leaves with reticulate venation done
clear
B)
Thin green leaves with parallel venation done
clear
C)
Fleshy green leaves done
clear
D)
Thin coloured leaves done
clear
View Solution play_arrow
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question_answer46)
In which type of plants PEP is th\[C{{O}_{2}}\]e receptor  [CPMT 1998]
A)
\[{{C}_{3}}\] done
clear
B)
\[{{C}_{4}}\] done
clear
C)
Both [a] and [b] done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer47)
In sugarcane plant \[^{14}C{{O}_{2}}\] is fixed in malic acid, in which the enzyme that fixes \[C{{O}_{2}}\]is [CBSE PMT 1999]
A)
Fructose phosphatase done
clear
B)
Ribulose biphosphate carboxylase done
clear
C)
Phosphoenol pyruvic acid carboxylase done
clear
D)
Ribulose phosphate kinase done
clear
View Solution play_arrow
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question_answer48)
Which of the following is not a\[{{C}_{4}}\]plant
A)
Sugarcane done
clear
B)
Maize done
clear
C)
Sorghum done
clear
D)
Wheat done
clear
View Solution play_arrow
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question_answer49)
Which of the statements is not true of the \[{{C}_{4}}\] pathway [AIEEE 2004]
A)
It requires more energy than the \[{{C}_{3}}\] pathway for production of glucose done
clear
B)
It overcomes loss due to photorespiration done
clear
C)
The \[C{{O}_{2}}\] acceptor is a \[{{C}_{3}}\] compound done
clear
D)
It is inhibited by high \[C{{O}_{2}}\] concentration done
clear
View Solution play_arrow
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question_answer50)
Photorespiration is called [MHCET 2000]
A)
\[{{C}_{2}}\] cycle done
clear
B)
\[{{C}_{3}}\] cycle done
clear
C)
\[{{C}_{4}}\]cycle done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer51)
The first reaction in photorespiraton is  [RPMT 1999; CBSE PMT 2000; CPMT 2001]
A)
Carboxylation done
clear
B)
Decarboxylation done
clear
C)
Oxygenation done
clear
D)
Phosphorylation done
clear
View Solution play_arrow
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question_answer52)
In photorespiration glycolate is converted to \[C{{O}_{2}}\]and serine in  [AIEEE 2003]
A)
Chloroplasts done
clear
B)
Peroxisomes done
clear
C)
Vacuoles done
clear
D)
Mitochondria done
clear
View Solution play_arrow
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question_answer53)
No. of carboxylation in \[{{C}_{4}}\]cycle is/are [DPMT 2003]
A)
1 done
clear
B)
2 done
clear
C)
5 done
clear
D)
3 done
clear
View Solution play_arrow
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question_answer54)
In Hatch and Slack pathway [BHU 2003]
A)
Chloroplast are of same type done
clear
B)
Occurs in Kranz anatomy where mesophyll have small chloroplast whereas bundle sheath have agranal chloroplast done
clear
C)
Occurs in Kranz anatomy when mesophyll have small chloroplast where a bundle sheath have larger chloroplast done
clear
D)
Kranz anatomy where mesophyll cell are diffused done
clear
View Solution play_arrow
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question_answer55)
Photorespiration takes place only in [MHCET 2003]
A)
Lysosomes of plant cell done
clear
B)
Green parts of the plant done
clear
C)
Mitochondria of plant cell done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer56)
Peroxisomes are found in [Orissa JEE 2005]
A)
Bundle sheath done
clear
B)
Endospem done
clear
C)
Mesophyll cells done
clear
D)
Vascular bundle done
clear
View Solution play_arrow
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question_answer57)
Peroxisome are related with [MP PMT 2005; AMU 2005]
A)
Photosynthesis done
clear
B)
Photorespiration done
clear
C)
Respiration done
clear
D)
None done
clear
View Solution play_arrow
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question_answer58)
Photorespiration takes place is [CPMT 2005]
A)
Chloroplast, mitochondria done
clear
B)
Mitochondria, peroxisome done
clear
C)
Chloroplasts, peroxisome, mitochondria done
clear
D)
Chloroplasts, cytoplasm, mitochondria done
clear
View Solution play_arrow
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question_answer59)
Which one is false about kranz anatomy [CPMT 2005]
A)
Bundle sheath have large chloroplast and less developed grana done
clear
B)
Mesophyll cells have large chloroplast and more done
clear
C)
It is found in Atriplex, sugarcane, maize done
clear
D)
Plant having it have better photosynthesizing power than\[{{C}_{3}}\]plants done
clear
View Solution play_arrow
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question_answer60)
\[{{C}_{4}}\]plant shows efficiency even in [Haryana PMT 2005]
A)
Low \[C{{O}_{2}}\]concentration done
clear
B)
Low temperature done
clear
C)
High \[{{O}_{2}}\]concentration done
clear
D)
At low water done
clear
View Solution play_arrow
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question_answer61)
Source of\[C{{O}_{2}}\]for photosynthesis during day in CAM plant is [CPMT 2005]
A)
3-PGA done
clear
B)
Malic acid done
clear
C)
Oxalo-acetic acid done
clear
D)
Pyruvate done
clear
View Solution play_arrow
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question_answer62)
In maximum plants stomata open during day and closed in night. Its exception is [Pb. PMT 2004; AMU 2005]
A)
Crassulacean acid metabolism plants done
clear
B)
\[{{C}_{3}}\]plants done
clear
C)
\[{{C}_{4}}\]plants done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer63)
.............is a CAM plant [Orissa JEE 2005]
A)
Maize done
clear
B)
Pineapple done
clear
C)
Onion done
clear
D)
Pea done
clear
View Solution play_arrow