Chapter: General

cartoon of a fat cell or adipocyte

Adipocytes are fat cells, which specialize in storing energy as fat.
There are lots of people out there who make their new year’s resolutions to loose weight. It is no surprising that these fat cells are scared of shrinking or disappearing completely.

red blood cell lysis illustration, red cell lysing after adding buffer

To analyze cells in the blood sometimes the red blood cells (RBCs) need to be removed. This can be done by lysing the cells. There are various RBC lysis buffers available that do just that.

Protocols:

Red Blood Cell Lysis  Protocol by Centre of Immunology and Transplantation
Red Blood Cell Lysis Using ACK Lysing Buffer by ThemrmoFisher Scientific
Red blood cell lysis using Biolegend lysis buffer

Other useful links

Forum discussing how RBC lysis buffer works
Best answer below

Cartoon & biology illustration of epithelial cells held together by tight junctions

Epithelial cells form a layer that line several organs of the body providing a barrier to the outside world. In other words, the epithelial cells help to protect or enclose the organs.

Epithelial cells are held together by tight junctions, which form a virtually impermeable barrier to prevent leakage of fluid (including molecules and ions) across the cell layer, so materials must actually enter the cells in order to pass through the tissue.

 

References:

Tight Junctions article by Wikipedia

Cell-Cell Adhesion and Communication on Molecular Cell Biology. 4th edition.

Cell Junctions on Molecular Biology of the Cell. 4th edition.

Cartoon of plant cell with chloroplasts, vacuole and cell wall generating glucose

Plant cells and animal cells are both eukaryotic cells. Even though they have a lot of similarities they are different. One of the differences that this cartoon is playing on is the ability of plant cells to generate their own glucose. This is made possible due to the chloroplasts. Animal cells on the other hand need to get their glucose from an outside source.

Just to show how cool the chloroplasts look like below is a video by Microscopic World showing cytoplasmic streaming in plant cells.