The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleotides in the expressed DNA strand. For more info on the different types of proteins, read this tutorial...
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'miniature machines' known as organelles. Read this tutorial to become familiar with the different cell structures and their functions...
Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, cells, tissues, organs, individuals, plant populations, and communities of plants. These tutorials will help you learn and appreciate plants regarding their distinctive structures and remarkable inherent strategies for thriving and survival. ..
The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tutorial will be more or less a quick review of the various principles of water motion in reference to plants. ..
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell", came about. This tutorial speaks of the evolution of organelles, their diversity, and similarity...