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Plant Tissues
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are meristematic, simple, secretory, and complex tissues. Find out the distinctive characteristics of each tissue in terms of structure and function...
Leaves
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this tutorial, various plant processes are considered in more detail. It also includes topics on leaf arrangements, leaf types, leaf structure, leaf color, abscission, and importance to humans...
Bryophytes
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, the liverworts, and the hornworts. These groups of plants require external water, usually in the form of dew or rain. Some of them grow exclusively in dark, damp environments in order to provide moisture. Find out more about them here...
Plant Meristems and Growth
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells differentiate and become specialized in relation to the function they will perform. Learn more about plant meristems in this tutorial...
Plant Cell Defense
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting compounds, such as lignin, ethylene, galls, and tannins. Find out how these mechanisms protect the plants from pathogens...
