Sunday, June 27, 2010

Calvin Cycle



The calvin cycle is when carbon dioxide is added to "RuBP" to form a two 3 carbon molecule called 3-phosphoglycerate. By using ATP and NADPH (now ADP and NADP+), 3phosphoglycerate forms into glyceraldehyde-3-phosphate (glucose). To make the story short, the calvin cycle is one part of the photosynthesis cycle. The photo above is a picture of a plant that is in the sunlight. By using the sunlight stimulation and the carbon dioxide around, the plant is continually going through the calvin cycle. Any plant is an example of the product of the Calvin Cycle.

Phloem



Phloem is a part of the plant that transports sugar (sap) to all parts of the tree. The photo above shows a part of a plant, the bark. Beneath the bark is phloem (next is the cambium and xylem). Examples of phleom are everywhere in a rainforest or a jungle.

Lipid Uses for Energy Storage



Lipids are organic molecules that are insoluble in water and consist of what we know as "fat". The photo above is olive oil, a key example of a lipid. Since lipids are not soluble in water, this is why olive oil dressing has separations within the liquid. Cream, grease, animal oil are all lipids.

Mollusks



Mollusks are a phylum that contain a wide variety of organisms. The photo above is of snails, a gastropod. Gastropods are the most diverse section within the phylum of mollusks. Snails are invertebrate and have shells, a typical characteristic of mollusks. Clams and oysters are also mollusks.

Thorn of a Plant



In the photo above, the sharp purple section of the plant is the thorn of the plant. This thorn protects the plant from herbivores. Thorns are modified stems of this plant, as shown above.

Cambium



In woody plants, vascular cambium is between the xylem and the phloem. There is also another region, cork cambium. This is between the cork and the phloem. This picture is a tree that was opened in my attempt to expose the cambium. Cambium is tricky to see since it is squished between other layers. In the picture, on the low center of the picture, the cambium is in that area. Cambium is living, it has nutrients and helps the growth of the plant (it produces xylem and phloem).

Auxin Producing Area of a Plant



Auxin is a plant hormone in the stem tip. This plant hormone causes the plant to form leaves, it causes the plant to exhibit photo tropism, and it causes it to form other important functions. The photo above shows the tip of the stem, where auxin is produced. The leaves formed and the movement of the plant would be different if auxin was not present. Auxin is at the stem tip so it can be found at the top or on the different sides of a plant, it does not have to be limited to one area. All leafy plants have this hormone.