preview

Rylee Perkins Lab

Decent Essays
Open Document

Rylee Perkins

The reaction that takes place for A is H2O + CO2 ---- > H2CO3, which is a synthetic reaction. This is a synthetic reaction because the molecules H2O and CO2 combine to form a new bond. The bond formed is H2CO3, also known as carbonic acid. Reaction B tells us that H2CO3 is polar. A polar molecule occurs when there is an unequal distribution of charges. In carbonic acid the hydrogen is positive, the oxygen is negative, and the carbon is neutral leading it to be an unequal balance in the total charge.

The antibiotic amphotericin B causes leaks in cells by combining with sterols in the plasma membrane. Amphotericin B does not work against most bacteria because they lack sterols and do not contain a plasma membrane. Since human …show more content…

They are composed of phospholipids, proteins, and cholesterol. The characteristic of phospholipids that make them essential components of cell membranes is that they contain a hydrophilic head and two hydrophobic tails. The hydrophobic tails fear water which causes them to face each other and create a double layer barrier, also known as fatty acid. The hydrophilic head of the phospholipid is attracted to water because it contains phosphate. This phosphate consists of one phosphorus atom and four oxygen atoms, which makes it polar and to point toward the water. This phosphate will eventually end up dissolving in the water. Sterols are added to membranes to give is a stiffness and make it more durable. Cholesterol is one of the most rigid lipids in the membrane. The rigidity around the cholesterol makes the cell membrane tough and makes it harder for smaller molecules to pass through the membrane. Cholesterol also helps immobilize some of the lipid particles in the …show more content…

Saturated and unsaturated fatty acids are different in many ways. Unsaturated fats consist of double bonds. The double bonds break up the chains of hydrogen molecules and creates tiny gaps. These gaps cause the fatty acids to liquify at room temperature. Saturated fats on the other hand, do not contain double bonds. The single bond is not strong enough to break the hydrogen molecules. Because of this, saturated fats do not have gaps in the molecules, which leads it to be slid in room temperature. Saturated fat is typically found in beef, pork, butter, and cheese. Unsaturated fat is found in salmon, tuna, and vegetable oil. The relative amount of unsaturated lipids in a plasma membrane would decrease if the E. Coli bacteria grows at 25° Celsius are then grown at 37° Celsius. This will occur to keep the lipids at its proper

Get Access