Plant hormone

free- floating aquatic plant from the duckweed family, that consists of small, individual thalli (Tkalec et.al, 2001). Lemna are small, fast growing plants and they develop dense mats on ponds, especially when enough light and nutrients are available (Gérard et.al, 2014). Salt is the most toxic substance, as it causes an inhibition of plant growth and a decrease in nutrient uptake (Chang et.al, 2012). Salt stress induces the production of abscisic acid (ABA), a plant stress hormone, which closes…

Lesson 5: Structures, Functions and Roles of Biological Molecules and Enzyme Activity in Metabolism Biological Molecules/Macromolecules Plants produce their own food through photosynthesis. They manufacture mainly carbohydrates (glucose) as a source of food of many higher organisms in the food chain. It is one of the many biological molecules present in plants and needed by animals. Biological molecules are macromolecules composed of many monomers (polymer) connected through a covalent bond…

The hormone I chose to research is called Serotonin. It was first discovered by Vittorio Erspamer in Rome in 1935. American scientists then verified all of the findings in the late 1940’s. In 1948, Serotonin was named and isolated by Maurice M. Rapport, Arda Green, and Irvine Page. Serotonin is produced in the Pineal gland in the brain and also in the intestines. Majority of the body’s Serotonin is found, and has a key role, in the gastrointestinal (GI) tract. This hormone is also found in…

FOOD COLORS INTRODUCTION: Through pigments we observe the different colors at each step of our lives, because the pigments can be found in each organism in the world and plants are the main producers. Pigments can be easily found in fruits, vegetables and flowers. It can also be found in skin, eyes and in other complex body parts. Natural and synthetic pigments are used in food, furniture, cosmetics and other products. Natural pigment plays an important part in photosynthesis. The food colors…

Introduction Humans and sharks have different digestive systems in order to suit what they eat. Humans are omnivores which means they eat a variety of either animals, plants or both. On the other hand, sharks are carnivores which means they only eat meat. Another factor that dictates what they eat is the environment they live in. Humans live in a human habitat and sharks live in an aquatic habitat. Over time, both humans and sharks have learned how to adapt to their environment. Humans have…

The releasing and inhibiting hormones that are produced and released from hypothalamic neurons are the growth hormone-releasing hormone (GHRH), growth hormone-inhibiting hormone (GHIH), Thyrotropin-releasing hormone (TRH), Corticotropin-releasing hormone (CRH), Gonadotropin-releasing hormone (GnRH), Prolactin-releasing hormone (PRH) and prolactiaen-inhibiting hormone (PIH). These hormones are stimulated and secretion from the anterior pituitary gland.…

This is an interesting scenario because endocrine system synthase performs as a negative feedback system. This means that when there is an unusually high level of a hormone in the blood, a signal will be sent back and production of that particular hormone will be stopped. The negative feedback system can easily keep all hormones levels at the optimal level for humans. When people train or exercise for a prolonged period of time they must understand the stress they can potentially bring upon…

death. I am going to talk about the effects of the condition on the human body. We also are going learn about the condition more in depth. Hypothyroidism Hypothyroidism is a condition in which your thyroid produce the improper levels of certain hormones that is needed to function properly. Women especially those older than 60 are more likely to have the disease. The disease rarely causes symptoms in the…

later learning in life for these animals, the foundation that is needed to survive in the wild. The two main components used in filial imprinting is thyroxine, also known as T4, and triiodothyronine, T3, T4 is a hormone from the thyroid gland that increases metabolic rates. So this hormone is…

As we know endocrine and nervous system work together. The way they work together is through communications. This systems consists on glands which secrets special hormones and these hormone goes around in the body as messenger. The organs who carry these type of hormones in the body are blood stream, organs and body tissues. The way they are connected is via brain which connect with two communication systems and the hypothalamus is tiny collection of Nellie which controls behaviour placed at the…