121.
Which of the following wall of guard cells is thick
A
Outer
B
Inner
C
Sidewall
D
All the three
Answer :
Inner
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122.
Leaves of submerged hydrophytes are
A
Epistomatic
B
Hypostomatic
C
Aatomatic
D
Both A & B
Answer :
Aatomatic
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123.
The term "DPD" was coined by
A
Renner
B
Kramer
C
B.S.mayer
D
Stephen hales
Answer :
B.S.mayer
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124.
Guard cell controls
A
Intensity of light entering
B
Photosynthesis
C
Closing and opening of stomata
D
Change in green colour
Answer :
Closing and opening of stomata
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125.
The best condition by which fully turgid cell can be identified is
A
TP is minimum
B
SP is maximum
C
OP less the SP PLASMOLYSIS & OERMEABILITY
D
TP=OP
Answer :
TP=OP
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126.
When a plasolysed cell is placed in a hypotonic solution then water will move inside the cell this will happen due to which force
A
DPD
B
OP
C
W.P
D
None of the above
Answer :
DPD
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127.
Transpiration occures from
A
Leaves
B
Stems
C
All parts
D
All aerial parts
Answer :
All aerial parts
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128.
Ringing experiment to explain ascent of sap path was firstly done by
A
Hartig ,Malpighi
B
Dixon & Jolly
C
Godlewski & J.C.Bose
D
Stephen hales and Boehm
Answer :
Hartig ,Malpighi
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129.
Which of the following is imbibant
A
Proteins
B
Pectin
C
Starch
D
All of the above
Answer :
All of the above
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130.
The inter conversion of sugar & starch is dependent on pH changes in the guard cells ; was demonstrated by
A
Levitt
B
Lloyd
C
Sayre
D
Steward
Answer :
Sayre
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