define lattice structure and unit cell

The molecular structure of cell membrane is still not clearly known. Several models have been proposed from time to time to explain its structure based on its physico-chemical propertie..

Units of Nervous System - The units of nervous system are specialised cells called the neurons . The general structure of a neuron is as follows: Around the cell body are short sensory projections called the dendrons. The fine branches of dendrons a..

The units of nervous system are specialised cells called the neurons . The general structure of a neuron is as follows: Around the cell body are short sensory projections called the dendrons. The fine branches of dendrons are called the dendrites. These..

The molecular structure of cell membrane is still not clearly known. Several models have been proposed from time to time to explain its structure based on its physico-chemical properties. In the year 1935 Danielli and Dawson proposed that the cell membrane is..

The cells and their compounds like cell organelles are measured in terms of the fractions of a millimeter, because of their extremely small size. The commonly used terminologies for these units are micron, nanometer and Angstrom. a) A micron or micrometer is one thous..

fig 2.25 fig 2.26 - Structure of C..

(FCC arrangement) We have found that for a ccp arrangement We also know that, per unit cell in ccp arrangement has effectively 4 spheres. Therefore, Percentage efficiency ..

All living organisms are composed of structural and functional units called cells. The body of a living organism may be composed of a single cell - as in unicellular organisms or many cells - as in multicellular organisms. The number of c..

Prokaryotic and Eukaryotic Cells - The structure of the cell that we have studied so far is that of a eukaryotic cell. How is a prokaryotic cell different from a eukaryotic cell? The main difference between these two cell types i..

Why are Organisms Composed of Cells? - All living organisms are composed of structural and functional units called cells. The body of a living organism may be composed of a single cell - as in unicellular organisms or many cells - as in mu..