Minggu, 16 Desember 2012

Vascular cambium tissue produces

Network Plants
By nature, we plant tissues differentiate into two kinds, namely merestematik tissue and permanent tissue. Network merestematik (embryonic tissue) consists of a collection of young cells that continue to divide producing another network. Tissue samples were meristematic shoot meristem tissue in stems and roots and cambium tissue. Meristem at the tip of the stem and roots of plants grow taller ngakibatkan.
Vascular cambium tissue produces timber and filter vessels that cause plants to grow. Results cleavage meristematic tissue called a permanent, because no longer undergoing differentiation. Based on the structure and function, permanent tissue can be divided into the following:

    
Networks cover or protector, the epidermis and cork tissue.
    
Tissue fillers, ie parenchyma.
    
Network reinforcement, ie kolenkima and sklerenkima.
    
Network carriers, the xylem and phloem.


2. Animals Network
At high tungkat animal body (Vertebrate) there are various kinds of networks can be grouped into a network merismatik, epithelial tissue, connective tissue, muscle tissue, and nerve tissue.
a. Meristematic tissue
Meristematic tissue is tissue cells always divide. The network is present in the embryo stage. In humans and vertebrate animals, meristematic tissues are found only in certain parts. For example, at the tip of the tube is still young and in the bone marrow that make blood cells.
b. Epithelial tissue or skin Networks

Tidak ada komentar:

Posting Komentar