what are hard questions in tissue chapter
Answers
Q. Write a short note on the different types of meristematic tissue with their location and functions in the plants.
Answer:
The meristematic tissues are classified as apical, lateral and intercalary meristematic tissue based on the region where they are present.
Apical meristem – It is present at the growing tips of stem and roots and results in increase in the length of the stem and the root. Lateral meristem (cambium): It is present on the lateral sides of stem and roots. It helps to increase the girth of the stem or root.
Intercalary meristem – It is present at the base of the leaves or internodes. It helps in the longitudinal growth of plants.
Q. Differentiate between chlorenchyma and aerenchyma.
Or
Write the difference between aerenchyma and chlorenchyma.
Answer:
Chlorenchyma:
It is a type of parenchyma which contains chlorophyll.
It helps to perform photosynthesis.
It is present in green parts of plants like the leaves.
Aerenchyma:
This type of parenchyma that has large air cavities in it.
It helps to provide buoyancy to the plants.
It is present in the aquatic plants, example in their floating leaves.
Q. Write the functions of collenchyma in plants.
Answer:
Collenchyma allows easy bending in various parts of a plant (leaf, stem) without breaking. It also provides mechanical support to plants like in the leaf stalks below the epidermis.
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