Anatomy Of Flowering Plants Question 75
Question: Read the following statements and answer the questions.
(i) It is made up of elongated, tapering cylindrical cells which have dense cytoplasm and nucleus. (ii) The cell wall is composed of cellulose and has pits through which Plasmodesmata connections exist between the cells. (iii) It is absent in most monocotyledons. Which part of plant tissue is being described by the statements above?
Options:
A) Sieve tube elements
B) Companion cells
C) Phloem parenchyma
D) Phloem fibres
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Answer:
Correct Answer: C
Solution:
[c] The described statements are associated with the phloem parenchyma.
Phloem parenchyma is living and has thin cell walls.
These cells form the packing tissue between all the other types of cells.
These cells store compounds such as starch.
Phloem parenchyma is absent in monocots because vascular bundles are open, that is, they lack cambium, so no secondary growth takes place.
BETA
