Sort out the context and important contents of each chapter of the primary microbial inspection technicians, and understand and understand the knowledge points they have learned.

Combined with textbooks and notes, draw the key and difficult knowledge of each chapter carefully in the book with highlighter or colored pen, and then write down these important knowledge layer by layer in the form of tree diagram or table drawing on the paper opened in 16, and understand it repeatedly. The solution ideas of important exercises are briefly indicated next to it.

The second time, I began to remember on the basis of understanding:

Take your own notes with you, and repeat the key and difficult contents such as concepts, theorems, formulas, properties and characteristics that you have summarized and written down.

Review notes to reflect the knowledge of the system as much as possible. In particular, it is necessary to reflect the connection and difference between key concepts and principles, so that when you see the notes, you can grasp the knowledge of a topic as a whole and as a whole, that is, you can show a "knowledge network."

Try to remember the third time:

To rewrite your notes, you only need to simply write concepts, terms and numbers, and you don't need to write specific content. Write down the details you can't remember. Recite repeatedly.

Build a knowledge network for the fourth time and think about the relationship between knowledge and knowledge;

The network diagram (braces, parentheses, tables, etc.) helps us to sort out the hierarchical relationship of important knowledge points such as important concepts, theorems and formulas in each chapter, which is clear at a glance.

Due to the familiarity of the content and the proximity of the spatial distance, we will suddenly realize that there is an internal connection between the knowledge points in each chapter and the knowledge points in the previous chapters. This feeling will make us awake and ecstatic. We should show our findings with clear points and simple terms on this network diagram.

The fifth consolidation:

Finally, you must do the questions. You can use the classic app to do the questions, which can play a very good role with the notebook. Only by doing the questions, can you understand where you learn well and where you learn poorly, and then through redoing, write the wrong question collection function of Baodian app, check for leaks and make up for your own shortcomings.

Extended data:

Microorganisms are the best in the world;

At present, the largest microorganism known in the world:

1985, Fishelson, Montgomery and Myrberg discovered a microorganism named surgeonfish, which was the largest microorganism found in the world at that time.

It looks like a cigar, about 200 ~ 500 microns long, up to 600μm at the longest, and its volume is about 654.38+00000 times that of Escherichia coli. This microorganism can be detected directly with the naked eye without microscope observation.

At present, the largest microorganism is a spherical bacterium discovered by Heidi Schulz in the marine sediment soil off Namibia in 1997, with a diameter of about 100 ~ 750μ m ... which is 2~4 times larger than the microorganism mentioned before.

20 1 1 In September, China scientists discovered the world's largest fungal fruiting body in Hainan. The fruiting body has been growing for 20 years, with a length of more than 10 meter, a width of nearly 1 meter, a thickness of about 5 cm, a volume of 409,262–525140 cubic centimeters and a weight of more than 500 kilograms.

At present, the smallest microorganism that can live independently is known in the world:

Mycoplasma, also translated as "mycoplasma" in the past, is a single-celled microorganism between bacteria and viruses. It is the smallest known microorganism that can live independently on the earth, and its size is about 100 nm. Mycoplasma is generally a parasitic organism, among which Mycoplasma pneumoniae is the most famous, which can cause serious pathological changes in respiratory organs of mammals, especially cattle.

Viruses:

The smallest plant virus, lettuce mosaic virus, is 1.5 nm thick and 28 nm long.

The smallest animal virus, foot-and-mouth disease virus, has a diameter of only 2. 1 nm.

Subvirus: (including viroid, pseudovirus and prion) is the smallest microorganism in the world.

The size of viroid is similar to that of viroid; Prions are much smaller than the smallest known conventional viruses (about 30 ~ 50 nanometers); Viroid is the smallest infectious pathogenic factor known at present, which is simpler than ordinary viruses. Potato spindle tuber disease virus was first reported in 197 1, and its size was only one-thirty-ninth of that of lettuce mosaic virus.

References:

Baidu encyclopedia-microorganism