This lecture focuses on the debate over what constitutes life throughout history, mainly in terms of chemistry, that is, whether organic or inorganic compounds make up living organisms and on the difficulty in defining life. It describes the four basic processes of life found in living organisms. It ends by reviewing the cell theory which states that "all living things are composed of cells". .

In this part 2 of the study of Prokaryotes, we will cover the cytoplasmic membrane, which is the interface between the outer and inner environments of the cell, the cytoplasm, and the internal structures of the prokaryotes.

Part 1 of the study of Eukaryotes involves a description of the characteristics, classification, examples, structures, in general, of the Eukaryotes.

Part 2 of the study of Eukaryotes involves the description of the external structures, cytoplasmic membrane and cytoplasm of the Eukaryotes.

Part 3 of the study of Eukaryotes involves the description of the internal structures of the Eukaryotes, namely the membranous organelles.

The final part 4 of the study of Eukaryotes involves the description of the non-membranous organelles that are part of the internal structures of the Eukaryotes.

This last lecture, in the section of Characteristics of Cells and Viruses, describes the characteristics of viruses, that distinguish them from cells, the structure and shapes of viruses, and finally the Baltimore classification of viruses.

This first lecture in the section of Microscopy introduces the comparative sizes and covers the topics of size measurement system, size comparisons among the different organisms and size comparisons relative to the 3 modes of observation, and the most common size ranges of microbial agents.

Part 1 of the lecture in Light Microscopy covers the use, definition and parts of the light microscope. It also includes description of image formation and light pathway.

This part 2 of the lecture in Light Microscopy describes the main concepts related to microscopy, such as magnification, resolution power and index of refraction, as well as other configurations, apart from light microscopy, such as phase-contrast, dark-field, and fluorescent microscopy.

Please note that this video does not start until time: 5:12 or so. I am trying to replace with  better version soon. This lecture describes the classical way to streak a plate, beginning from one quadrant and turning the plate for each of the other quadrants 2 quadrants of the plate, with the objective of obtaining isolated colonies after incubation.