Cellular Osmosis

Experiment: Cellular Osmosis
Control: Egg in water
Variables: Egg in Salt water, Egg in sugar water, Egg in vinegar

Day: 1
The water egg is normal, and is sitting at the bottom of the jar which is covered in bubbles.
The vinegar egg is at the bottom and has bubbles all over the egg, some of the bubbles are floating to the surface.
The salt water egg is floating at the very top of the jar with a small pile of salt at the bottom, it also has small air bubbles.
The sugar water egg is floating, you can see very little sugar at the bottom, and it has little sugar studs floating to the very top.

Day: 2
The Water control egg, is cracked and the jar is completely filled with bubbles.
The vinegar egg is floating at the top now and looks as if it is turning yellow, still covered in bubbles.
The salt water egg stayed the same, floating at the top.
The sugar water egg, sunk and looks soft.

Day: 3
The water control egg is the same, except for the crack got bigger
The vinegar egg is looks yellow. but is still the same
The salt water egg is the same except it lost all of the salt at the bottom.

Day: 4
The water control is the same with a ton of bubbles.
The vinegar egg sunk and is yellow with less bubbles on it and seems very very soft.
The salt is the only egg floating now.
the sugar sunk and looks very hard.

Dissecting  Day:
Egg from the fridge: It became our new control because the egg in water had a hidden crack. It was normal, the shell was soft to the touch, the yolk was a dark yellow, when the yolk is poked, the color of it is still the same dark yellow.

Water control egg: is no longer our control, the bubble was a membrane, when we cracked the egg, it was full of water, the crack in the egg had filled it with water, the yolk color before and after it was popped is the same dark yellow.

Salt water egg: feels normal. it was the only egg floating at this time, when you put it up to the sun, you can see the yolk, as well as you can see the salt inside of the egg,when we cracked it the yolk was thick, you could even pick it up a little.

Sugar water egg: is soft to the touch, and if you put it up to the sun, you can see the yolk in a short of blob shape, you can also see the particles from the sugar. when we cracked it, the yolk seemed soft, but turns out it was even thicker than the salt water.

Vinegar egg: It has no shell, the shell disintegrated and left us with the membrane which seems pretty solid, it is very squishy, and can be bounced. When we popped it, we realized it wasn't as solid as we though it to be. The yolk had shrunk into a small solid yolk ball.

Watch my short video bouncing the egg soaked in vinegar. It was my favorite part of the whole experiment.

Parts of a Cell

Plasma Membrane: surrounds a cell like a wall.

Microtables: give protein to a cell.

Microfilament: are pollinators of the protein actin that are part of a cells exoskeleton

Smooth Endoplasmic Reticulum: is a membranous organelle found in most eukaryotic cells. Its main functions are the synthesis of lipids, steroid hormones, the detoxification of harmful metabolic byproducts and the storage and metabolism of calcium ions within the cell.

Lyosome: is an organelle in the cytoplasm of some cells.


Secretory Vesicles:  are tiny little packages in which certain cell secretions can be transported. The vesicles are membrane bound and produced by the golgi apparatus or endoplasmic reticulum.

Peroxisome: is a small organelle present in the cytoplasm of many cells, which contains the reducing enzyme catalase and usually some oxidases.

Centrosome:  is a cellular structure involved in the process of cell division. Before cell division, the centrosome duplicates and then, as division begins, the two centrosomes move to opposite ends of the cell.

Cytoplasam: is the material or protoplasm within a living cell, excluding the nucleus.

Golgi Vesicles:  are actually made from the Golgi network. In fact, one of the functions of the Golgi is to make new vesicles out of the existing membrane of the Golgi and put into those vesicles the glycoproteins and other substances that are made in the Golgi network.

Golgi Apparatus: is a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.

Chromatin: is the material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.

Nucleus: is a Latin word for the seed inside a fruit. It most often refers to: Atomic nucleus, the very dense central region of an atom. Cell nucleus, a central organelle of a eukaryotic cell, containing most of the cell's DNA.

Ribosome: is a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.

Intermediate Filament: are cytoskeletal structural components found in the cells of vertebrates, and many invertebrates.

Mitochondrion: is an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers