When cells make protein from amino-acids, they require energy from ATP. It is also necessary to use ATP to link glucose molecules together to form starch or glycogen. Mitochondria: 1  have a double membrane the inner membrane. 2  the outer membrane; 3  have their own DNA this carries the information to make the enzymes;
In this technique, each member of the population has an equal chance of being selected as subject. The entire process of sampling is done in a single step with each subject selected independently of the other members of the population. There are many methods to proceed with simple random sampling. The most primitive and mechanical would be the lottery method. Each member of the population is assigned a unique number.
Process Sampling Techniques. 1  Systematic Sampling: In case of systematic sampling, the first element in the sample is chosen at random. Then the next elements are chosen in a systematic fashion. 2  Rational Subgrouping: Rational subgrouping is a sampling technique whose main aim is to produce data for control charts.