To refer to class variables and methods, you join the class's name and the name of the class method or class variable together with a period ('.'). Methods and variables that are not class methods or class variables are known as instance methods and instance variables.nstance Methods and Variables. While System's. When the System class is loaded into the application, the class instantiates PrintStream and assigns the new PrintStream object to the. As you see, you refer to an object's instance methods and variables similar to the way you refer class methods and variables.
Mitochondria (singular mitochondrion) are abundant organelles present in nearly all eukaryotic cells . The main function of mitochondria is to produce adenosine triphosphate (ATP), the cellular energy source. Mitochondria are believed to be the evolutionary result of early anaerobic (nonoxygen-using) eukaryotic cells engulfing aerobic (oxygen-utilizing) bacteria, resulting in a symbiotic relationship between the two organisms.
Mitochondria - Turning on the Powerhouse. Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration. Many of the reactions involved in cellular respiration happen in the mitochondria. Mitochondria are the working organelles that keep the cell full of energy. Mitochondria are small organelles floating free throughout the cell. Some cells have several thousand mitochondria while others have none.