Plant Biology Essays, Research Papers & Term Papers (150) essays
Plant Biology essays:
The Effects of Heavy Metals on Plants in Industrially Contaminated Ecosystems
... mineral elements. Once this sensitive metal ion balance is disrupted, by mining or industrial waste for instance, the whole ecosystem is put in jeopardy: primary producers will experience toxic stress, resulting, ultimately, in reduced plant productivity and even death. Certain heavy metal ions ...
The Grasslands
... rolling hills all around you. Even rows of wheat stretch into the distance. You are near a white picket fenced farm with big cottonwoods shading it from the scorching sun. You have just visited a collective farm in the Soviet Union, a Masai ...
Explain roots, stems and leaves in plants.
... vascular tissues, xylem and phloem which occupy the core of the root. Primary Growth of Roots: Production of Laterals Laterals are side branches of roots. The cells in the pericycle divide and form a new apical meristem. The new branched roots ...
Mitochondria and Chloroplast a detailed comparison between the functions and purposes of the mitochondria and chloroplast.
... long in length, but are able to change shapes, move, and divide into two. The cell itself is enclosed in an envelope of two membranes. The outer membrane is smooth while the other is convoluted with unfoldings called cristae. The mitochondrion becomes even ... elements ... organs of plants and eukayotic algae ...
Discuss the hormones in plants and their actions. (auxin, gibberellin, cytokinin, abscisic acid, ethylene)
... growth, cell elongation in shoots, cell division, growth of lateral buds, production of xylem, development of fruits, and can help produce ethylene. Auxin causes the root to grow downward and shoot to grow upward. It's responsible for the bending of plants ...
Discuss the xylem and phloem. (Structure, Changes in the Xylem of Woody Plants, Transport)
... elements. More support for after the cell's contents have died are fibers, which are long and thin cells. Changes in the Xylem of Woody Plants Xylem in woody plants changes a lot during their lives. There is new wood formed that is called growth ...
Lab on how plant cuttings (Dwarf Periwinkle and Sage Bush) grow in different envorments.
... plant with the sand. There was a lot of growth in the third and fourth week. Conclusion I reject my hypothesis of Dwarf Periwinkle cuttings will grow better than Mexican Sage Bush cuttings in new ...
photoshynthesis
... pyruvic acid molecules (3-carbon). Chemical Overview If oxygen levels are still low, there are two options: In ... water and form oxygen and chemical energy. Dark reactions (don't require light) use chemical energy from ... -ATP, 3-NADH and 1-FADH2. Hydrogen protons produced from Kreb's Cycle are carried to ...
College Level Biology 101 essay on scientific inquiry and an experiment to boot! Thought provoking :)
... area of the yard that is shaded. I am looking for optimal growth and healthy grass as the seed package claims these standards for shaded conditions. My theory will be proven if the grass grows excellent in the shade. My theory will be disproved ...
Stem Cell.
... long periods of time through cell division. Researchers discovered stem cells in the tissues ... more experimental than industrial research designed to develop ... other parts of the world stem cell funding ... decrease with age. It seems even though the adult ... stimulate it into making new nerve cells with the ...