Biology Item Collection 2

Auxin is a plant hormone produced in the stem tip that promotes cell elongation. This shows a tip of a plant that is in my house. Auxin have an essential role in coordination of many growth and behavioral processes in the plant life cycle.

Gibberellins are a plant hormone that regulates growth and influences various developmental processes, including stem elongation, germination, dormancy, etc. This is a picture of Begonia that we are growing. Every plant has this hormone in it.

Ethylene is a plant hormone which differs from other plant hormones in being a gas. Ethylene is released by fruits such bananas (like seen) and tomatoes during their ripening process.

This shows radial symmetry because they are similar on both sides if a line is put through the middle

Keratin is a protein that makes up nails, hair, hooves, and horns and other such vertebrate structures. Our outer layer of the skin is an example of a keratin.

This picture is an example of modified stem of a plant. Normally the stem grows straight up but this picture shows the stem looping around 2 times.

Woody Stems are the stems of plants that have been growing for two years or more. After two years, a plant's stem thickens to accommodate growth and increased circulation in a plant. This shows the same plant as above but it shows the full stem

Insects are arthropods in the class insecta. This shows a picture of a dead insect. Insects normally have three parts: the thorax, the head and abdomen

This is just a picture of a plant next to my begonia. All plants have enzymes in them. Any of numerous proteins or conjugated proteins produced by living organisms and functioning as biochemical catalysts.

Long-day plants are those that require a long period of exposure to light each day in order to produce flowers. Lettuce is an example of long day plants and this shows lettuce that I had in my house