Answer : Option CExplaination / Solution:
Reticulate venation: In this type, the veins branch and unite forming a complicated network, All the veins are interconnected, like the strands of the net. Leaves of ‘Dicot plants’ generally have reticulate venation e.g., Hibiscus, Redgram
Answer : Option AExplaination / Solution:
The roots of extant vascular cryptogams and most monocotyledons do not show any secondary growth; they remain entirely primary throughout their life.
Answer : Option DExplaination / Solution:
In isobilateral leaves of monocot, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These are called bulliform cells.
Answer : Option BExplaination / Solution:
The stem shows the epidermis covered with a thin layer of cuticle, narrow cuticle and each vascular bundle is conjoint, open and is endarch protoxylem.
Q6.Stem of grasses and related plants elongate by the activity of
Answer : Option AExplaination / Solution:
Grasses belongs to monocotyledonous angiosperms in which secondary growth do not occurs. Plants elongate by the activity of both apical and intercalary meristem.
Answer : Option CExplaination / Solution:
Separate xylem and phloem bundles are found in dicotyledonous roots. This kind of vascular bundle is called radial vascular bundle.
Answer : Option CExplaination / Solution:
Quiescent centre is a small group of cells with low mitotic activity. It is found at the tips of growing roots in the root meristem.
Answer : Option DExplaination / Solution:
The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three classes based on the nature of the cell walls.
Answer : Option DExplaination / Solution:
Lucinate collenchyma is very much alike to angular collenchyma but the cells are regularly arranged. Thickening occurs at theinner and outer tangential wall. It is found in cucurbita stem.
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Scored Mark :
Mark for Correct Answer : 1
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