مقدمة في فسيولوجيا النبات - المحاضرة الاولى

introduction to plant physiology

1. General Botany (1) PLANT PHYSIOLOGY Bot 101

2. What is Plant Physiology? Plant physiology is the study of , how plants work and its functions and vital processes occurring. Plant physiology is a study of the plant way of life, which include various aspects of the plant lifestyle and survival including metabolism, water relations, mineral nutrition, response to the environment, growth, and transport processes. Plant physiology is an experimental science, relies on chemistry and physics.

3. Plant cell Structure

4. Amoeba is a single cell eukaryotic organism which is made up of a nucleus and cytoplasm. The cytoplasm of amoeba can be divided into the two layers: endoplasm and ectoplasm. Ectoplasm is the clear outer cytoplasmic layer of amoeba while endoplasm is the inner granule-rich cytoplasmic layer of amoeba. Plant cell Structure

5.  protoplasm? Protoplasm are basically the living components of a cell. They may include plastids, mitochondria, cytoplasm and the cell nucleus among many others. In some cases, it refers to the colloidal substance found in a cell with the exception of organelles.

6. The protoplasm is a colloidal solution  consisting of a large amount of water, biological solutes such as glucose, fatty acids, minerals, vitamins, hormones and enzymes. It has two parts- a darker denser part called nucleus and a semi-solid jelly-like part called cytoplasm 

7. True Solutions Types of liquid systems

8.   colloid is one of the three primary types of mixtures, with the other two being a  solution  and suspension . A colloid is a mixture of particles ranging between 1 and 1000 nanometers in diameter. Dimensions must be between 1 and 1000 nanometers . If the dimensions are smaller than this, the substance is considered a solution; if they are larger, the substance is a suspension. In colloids, one substance is evenly dispersed in another. The substance being dispersed is referred to as being in the dispersed phase , while the substance in which it is dispersed is in the continuous phase . To be classified as a colloid, the substance in the dispersed phase must be larger but smaller than what can be seen by the naked eye. Classifying Colloids A common method of classifying colloids is based on the phase of the dispersed substance and what phase it is dispersed in. The types of colloids include  sol, emulsion, foam, and aerosol . Sol  is a colloidal suspension with solid particles in a liquid. Emulsion  is between two liquids. Foam  is formed when many gas particles are trapped in a liquid or solid. Aerosol  contains small particles of liquid or solid dispersed in a gas.