Plant hormone

There are several different types of plant hormones some of which inhibit or promote growth in the plant. There are also synthetic varieties of these plant hormones, specifically the plant hormone auxin which has many different synthetic compounds. There is not much data on the impact that these synthetic hormones have on plants growth rate in pea plants. In order to understand the impacts of synthetic auxin an experiment was conducted using natural auxin, naphthaleneacetic acid, and indolebutyric acid. Three seeds were placed in 4 pots each, one pot functioned as a control group with no added hormone. A hormone solution for each type of auxin was created and added over four weeks. Each of the plants received an equal amount of water, light, and was exposed to equal amounts of light. After collecting the height data in centimeters it was determined that indolebutyric acid had the highest rate of growth of all the plant groups. Based on the data it can be concluded that synthetic auxin has a almost as much of an impact on pea plant growth as natural auxin. However the synthetic auxin naphthaleneacetic acid is not as effective as natural auxin or its counterpart indolebutyric acid. Introduction Hormones play a foundational role in the…

Plant Hormones: DIAGRAMS/PICTURES NEEDED: Hormone Locations (color coordinated and showing relative concentrations) Auxin- Auxin is a hormone that’s main function is to promote cell elongation in stems, buds and roots and also plays a small part in the differentiation or new cells. Auxin is present in high concentrations in germinating fruits and seeds, but it is not yet known whether this high concentration of auxin is passed on from the mother or whether is is created but the developing…

Through these experiments, they are hoping to develop a better idea of what physiologically causes colorectal cancer. By studying different physiological aspects, such as, estrogen levels in women, body mass index in different races of men, one study sought to figure out who is more likely to develop colon cancer. Other studies aim to understand what specific effects one’s diet has concerning colon cancer. One research group evaluated the correlation between high intakes of plant foods and fiber…

A comparative study done by McGraw & Young (2010) used voles as subjects, because of their distinct social behavior. They showed that prairie vole pups, which are part of monogamous species, react to social isolation with ultrasonic calls as well as an increase in corticosterone level, which is a hormone involved in stress responses. On the other hand, montane vole pups, which are promiscuous species, did not respond to social isolation as a stressor, but on the contrary did produce ultrasonic…

many years in which many physical growth, sexual and psychological changes happen and therefore lead to a sense of maturity. A number of physiological changes occur as part of pubertal and biological development such as increases in individuals’ height, weight, body structure and organ systems (circulatory and respiratory). Hormonal activity is therefore what hugely influences these particular changes. Once puberty starts, hormones act as an organizational factor, hence preparing the body to act…

is the most beautiful and significant experience. The middle adulthood, is considered highly productive, especially in the intellectual and artistic sphere, and is ultimately the period in which full self-realization is achieved. In this period the cognitive development of the people are in their peak mental performance. Also, there are physical, psychological and social changes like menopause and andropause. The menopause cease and this is due to a change in the hormonal secretions of…

The nerve cell knows when to release a neurotransmitter after an electrical signal is triggered. Once the electrical signal is triggered the nerve cell will secrete a chemical, the neurotransmitter, which will diffuse across the synapse. The synapse is a compact space between the target cell and the nerve cell. Hormonal Signaling Endocrine cells secrete hormones into the blood vessel, which then send them to target cells. For any cell signaling and response to happen, a specific cell must send a…

Cells and cell networks can also adjust in response to external stimuli. For example, GnRH signaling in gonadotrope cells can cause actin reorganization, resulting in membrane projections and cellular migration towards blood vessels (70). Interestingly, pituitary cell networks can also exhibit sex differences. For example, a higher proportion of somatotrope cells respond to growth hormone releasing hormone (GHRH) in males than in females (71). It is possible that something similar may be…

Endocrine disruptors is the given name for a group of chemicals that, at certain doses, can interfere with the hormone system within mammals as well as fish and amphibians. They can be naturally occurring chemicals e.g. Arsenic, or manmade chemicals e.g. hormonally active substances excreted by humans using certain pharmaceutical products, as well as a number of chemicals derived from everyday cosmetics, plastics and personal care products. These disruptors can lead to a variety of debilating…

The Controversy behind Endocrine Disruptors Endocrine disruptors are chemicals that can cause an individual’s endocrine, neurological or immune system to not function properly. Many chemicals have been deemed endocrine disruptors but are still used heavily today. They can be seen in things such as, plastics, cosmetics and pesticides among other products. Whether or not the benefits that using certain compounds affords us is worth the damage they can potentially cause is the basis for the…