Monday, November 19, 2012

Valiant Vacuole

As the cell war begins I think it would be a good idea to introduce the candidate that I am sponsoring. The Valiant Vacuole. The vacuole is a membrane bound sack. They tend to be very large in plant cells. Vacuoles play many roles in a cell. They store nutrients and waste products, increase cell size during plant growth, the removal of waste products, and hydrolyzing of macromolecules.
A very important ability of vacuoles in plant cells is the regulation of turgor pressure. Turgor pressure is when water collects in the vacuole and pushes outward against the cell wall, producing rigidity in the plant. If turgor pressure drops enough a plant will lose its rigidity. This can be seen when a plant wilts.
Now that you know this information vote Valiant Vacuole!
Lauren and Victoria
Valiant Vacuole for President!

Friday, November 16, 2012

Carbohydrates...Yum!

As someone who rows races quite often I understand the importance of carbohydrates. Carbohydrates are on of the macromolecules. Carbohydrates are used for fast energy, energy storage, raw materials, and structural materials. Carbohydrates are made up of Carbon and Hydrogen. Carbohydrates are made up of monomers which are sugars. The most common being Glucose. The energy is stored in carbon to carbon bonds. Polysaccharides cost little energy to make and are easily reversible. One carbohydrate commonly seen in animals is Glycogen. Cellulose is a common carbohydrate seen in plants. It is the most abundant organic compound on Earth but humans cannot digest it. Many herbivores have developed a mechanism to digest it though.