Skin epithelium is called stratified squamous epithelium because it has one layer of cells. [True/ False]
Answer
True. Explanation:
Epithelial surfaces are plentiful in the human body. The entire body has an epithelial covering called skin.
Stratified squamous epithelium: the cells originate from a layer of cells along a basal lamina and form a multilayered structure.
Xylem fibres help in conduction of water upwards. [True/ False]
Answer
False. Explanation:
The xylem is the vascular tissue responsible for the upward conduction of water and nutrients from the roots. The xylem fibers are non-living sclerenchyma cells as they lose their protoplast at maturity. These cells are found in between the tracheids and xylem vessels of the xylem tissue.
Xylem vessels are very long tube-like structures formed by a row of cells placed end to end. The transverse wails between these cells are partially or completely dissolved to form continous water channels.
Write true (T) or false (F).
The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.
Answer
True. Explanation:
It is present as lining of blood vessels (squamous epithelial tissue), lung alveoli and kidney tubules (columnar ciliated epithelial tissue).
Cells are loosely packed in connective tissue. [True/ False]
Answer
False. Explanation:
Connective tissue consists of cells, fibers, and ground substance. Connective tissue can be classified as loose or dense. Loose connective tissue has relatively fewer cells and fibers per area than dense connective tissue, in which the cells and fibers are tightly packed.
True. Explanation:
A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.