An alias type based on a SQL Server system data type. Alias data types are created with the CREATE TYPE statement before they can be used in a table definition. The NULL or NOT NULL assignment for an alias data type can be overridden during the CREATE TABLE statement.
The measure of photochemical efficiency is made by meauring the amount of oxygen produced by leaves following exposure to various wavelengths. It is evident from these absorption and output plots that only the red and blue ends of the visible part of the electromagnetic spectrum are used by plants in photosynthesis.The reflection and transmission of the middle of the spectrum gives the leaves their green visual color.he measured rate of photosynthesis as a function of absorbed wavelength correlates well with the absorption frequencies of chlorophyll a, but makes it evident that there are some other contributors to the absorption.
In addition, the process of photosynthesis is the source of oxygen required for the respiration of both plants and animals. The process of photosynthesis transduces (converts) the kinetic energy of sunlight into the potential energy of chemical bonds.The energy is initially trapped in ATP molecules, later incorporated into the bonds of glucose, and eventually stored as carbohydrates sugar or starch.hlorophyll, the photosynthetic pigment in chloroplasts, absorbs light energy. Plants appear green because chlorophyll does not absorb light in the yellow-green region of the visible spectrum. Yellow and green wavelengths of the spectrum are reflected or transmitted depending on the thickness of a leaf.