131. The main function of seive tubes is

A Food conduction
B Protein transfer
C Enzyme transfer
D Transcription
Answer :   Food conduction
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132. Knots are formed in the wood due to

A External Injuries
B Bases of the branches get buried in ain stem
C Leaf scars
D Insect bites
Answer :   Bases of the branches get buried in ain stem
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133. Complementary cells of lenticels develop from

A Phellem
B Phelloderm
C Endodermis
D Phellogen
Answer :   Phellogen
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134. Sclerenchymatous bundle sheath is present in

A Grass
B Sunflower
C Banyan
D Gram
Answer :   Grass
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135. In which plant part laticiferous gland are found

A Cortex
B Epidermis
C Endodermis
D Vascular bundle
Answer :   Cortex
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136. Largest number of chloroplasts are found in

A Palisade tissue
B Spongy tissue
C Transfusion tissue
D Bundle sheath cell
Answer :   Palisade tissue
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137. In general, the cells of cortex lack

A Chlorophyll
B Nucleus
C Reserve food
D Nucleolus
Answer :   Chlorophyll
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138. The best possible methods to determine the age of a tree is

A To find out the number of branches
B To measure its diameter
C To count the number of annual rings
D To count the number of leaves
Answer :   To count the number of annual rings
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139. Which of the following meristems is responsible for extrastelar secondary growth in dicotyledonous stem?

A Intrafascicular cambium
B Interfascicular cambium
C Intercalary meristem
D Phellogen
Answer :   Phellogen
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140. Vascular bundle with protoxylem towards the periphery is

A Radial
B Endarch
C Exarch
D Closed
Answer :   Exarch
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