D. i). Identify the tissue given in the following figure.
ii). Mention the characteristic features of the cells.
iii). Specify the function of this tissue.
iv). Name any part of the plant where these cells are present.
E. Differentiate striated and unstriated muscles with the help of diagrams.
Answers
Answer:
ii) They have thin cell walls.
Abundant or dense cytoplasm and single large nucleus.
Spherical, oval, polygonal or rectangular shape.
No intracellular spaces between them.
Either no vacuoles at all or a few vacuoles.
iii) Epithelial tissues act as coverings controlling the movement of materials across the surface. Connective tissue integrates the various parts of the body and provides support and protection to organs. Muscle tissue allows the body to move. Nervous tissues propagate information.
iv) xylem
E) Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/location in the body. They are cylindrical in shape and multi nucleate. They spindle shaped and uninucleate. They are cylindrical branched and uninucleate.
Answer:
i)The tissue is phloem.
ii) ‘A’- Sieve plate
'B'- Sieve tube
'C’- Phloem parenchyma
'D'- Companion cell.
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