Cellular organisation

Created by

Anosh Eric

Cards (9)

Cells group together to form tissues with the purpose of performing a common function.
Examples of tissues include xylem and phloem tissues in plans.
Organs are groups of
tissues which work together to perform a wider function whereas an organ system is
composed of many organs which work together to perform an essential life function.
what is the function of the xylem?
The xylem transport water and minerals as well as provide structural support. They are
long cylinders made of dead tissue with open ends. Xylem vessels are thickened
with a tough substance called lignin. They consist of parenchyma, fibres and vessels
and are produced by meristem cells which produce smaller cells that elongate.
What is the purpose of the phloem?
The phloem transport water and minerals as well as provide structural support. They are
long cylinders made of dead tissue with open ends. Xylem vessels are thickened with a tough substance called lignin. They consist of parenchyma, fibres and vessels
and are produced by meristem cells which produce smaller cells that elongate.
What is the purpose of epithelial tissue?
Epithelial tissue are sheet of cells that serves as a lining/cover a surface. There are two types, squamous which are smooth, flat and very thin, fitting closely together to create a smooth surface, such as the lining of blood vessels and cheeks. Whereas ciliated epithelium is composed of column shaped cells containing cilia which form the lining of structures such as trachea and bronchi.
The cilia move together to move the mucus produced by goblet cells along. Ciliated epithelium is also found in the oviducts
What is the purpose of connective tissue?
Connective tissue are involved in providing support and holding various structures together,
examples include cartilage and bone
What is the purpose of muscle tissue?
Muscle tissue is specialised for movement through contraction
What is the purpose of nervous tissue?
Nervous tissue is specialised for impulse conduction