Cell Analogies Presentation: Leah Chiponis and Grace Slone

By -
https://docs.google.com/a/sjusd.org/presentation/d/1xZoCK68mvkn6b_3BgrEaE7GZX16GYJlIMUgJWN0_taE/edit?usp=sharing

Comments

Post a Comment

Popular posts from this blog

Blogpost #8: A Matter of Selection - Sydney Stitt

By -
Image
Introduction  Natural selection seems to have affected plants for thousands - maybe millions , of years. Natural selection and adaptation allows specific traits best fit for the environment to succeed, as less-fit traits soon become extinct. Brassica oleracea , the species we're currently working on, is no exception to natural selection. Like many other species on our planet, brassica plants came from a common ancestor - wild cabbage. Yet it's been hundreds to thousands of years since adaptions from wild cabbage began - leaving plenty of room (and time) for mutations, gene shuffling (caused by meiosis) and random assortment of genetic material to create different variations and traits. The many different types of brassica plants clearly exemplify these variety of traits. As I studied the plants one day, I noticed how different these plants seemed to appear. The phenotypes of many of these plants were completely unlike one another! Some plants had spindly, purple spikes wi...
Read more

Blogpost #7: Anthers and Stigmas, Oh My! - Sydney Stitt

By -
Image
Introduction  Brassica oleracea , the plant group in which our own cabbage plants fit into, is quite an extensive group. However, the flowers in which the grown plant originated from, is a perfect example of the reproductive system in plants. A few weeks ago, I dissected a flower to locate multiple important parts of the flower, such as the stigma, anther, and filament. Reproductive Parts  Here is an image of the petals of the flower, with the ends of the filaments sticking out. The petals are sort of 'shields' for the stigma and the filament/anther. Here are the multiple stamens of the flower. This is the male reproductive system of a flower. Shown are the anthers, or the little yellow ends to the green stalks. Anthers contain pollen, the male gamete (sperm). The filament, the long light-green tube connected to the anther, is connected to the base of the flower. Here are the images of the carpel, or also known as the pistil. This is the fem...
Read more

Blog Post # 7 - Leah Chiponis

By -
Image
         Anthers and Stigmas and Styles, Oh My!        Fertilization occurs in our plants and other types of Brassica Oleracea through the plants different parts. For instance, first, pollen grains are formed by meiosis and the anthers, producing haploid spores that go through mitosis. After that, meiosis in the ovule produces haploid spores as well, and after the spores going through mitosis, they become an egg. Then, pollen grains land on the stigma, which grow tubes to the ovule, with a sperm fertilizing the egg. This forms a zygote, and in each ovule, a seed is developed and during the development, the ovary wall starts to thicken and form the fruit around the seeds and eventually, the plant starts to grow. This is a picture of our tiny yellow flower under the microscope. This image shows how after everything from the flower has been taken off, besides the ovules, which look like tiny green bubbles. The ovary was sliced o...
Read more