9th Science NCERT Chapter 6
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– Types of simple tissues
– Location and function of apical meristem
– Structure and function of husk of coconut
– Constituents of phloem
– Animal tissues, including epithelial tissue, connective tissue, muscular tissue, and nervous tissue
– Epithelial tissue: its role as covering or protective tissue, examples like skin, mouth lining, alveoli, functions of epithelial tissue, different types (like simple squamous, stratified squamous, columnar, ciliated columnar, cuboidal)
– Connective tissue: characteristics, examples like blood, bone, ligament, tendon, cartilage, areolar tissue, adipose tissue
– Muscular tissue: consisting of elongated cells responsible for movement in the body【4:0†source】【4:1†source】【4:2†source】【4:3†source】.
What is a tissue?
A tissue is a group of cells similar in structure and function.
How many types of elements together make up the xylem tissue? Name them.
Xylem tissue is made up of two types of elements: xylem vessels and xylem tracheids.
How are simple tissues different from complex tissues in plants?
Simple tissues are composed of similar types of cells with related functions, while complex tissues are made up of different types of cells working together for a common function.
Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
Parenchyma cells have thin cell walls and are unspecialized, collenchyma cells have irregularly thickened corners and provide flexibility, while sclerenchyma cells have very thick, rigid cell walls and provide mechanical support.
What are the functions of the stomata?
Stomata allow for gas exchange, transpiration, and regulate the passage of water vapor and gases in and out of the plant.
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