The compound microscope is an optical instrument that is used to increase or enlarge the images of objects and organisms not visible to the naked eye. The common optical microscope is made up of three systems:
The mechanical system is made up of a series of pieces in which the lenses that allow movement for focusing are installed.
The optical system comprises a set of lenses arranged in such a way that it produces the increase of the images that are observed through them.
The lighting system comprises the parts of the microscope that reflect, transmit and regulate the amount of light necessary to perform the observation through the microscope.
It's the same thing that Pavlov did with the dogs, but instead of a can opener, he used a bell. The dogs drooled at the sound of the bell because they knew that the food was coming.
<u><em>Carbohydrates is one of the biomolecules, others being nucleic acids, lipids and proteins. Carbohydrates are the major sources of energy in the body.</em></u>
Carbohydrates are made up of carbon, oxygen and hydrogen. They are classified as monosaccharides, disaccharides and polysaccharides.
<em><u>Each gram of carbohydrates yields energy equivalent to 4 calories. Therefore, 17 grams will yield (17×4) 68 calories.</u></em>
