In this video we are going to look at a few different ways in which plant hormones can be used. Plant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones, that cause the weeds to grow really quickly. This means the weed is absorbing nutr
A hormone is a chemical messenger that is secreted (or released) into our bloodstream by specific organs known as glands. Hormones regulate (or control) many processes in our body, including blood glucose levels, water content in blood, general growth, and blood pressure – just to name a few. They
Plants have developed responses called tropisms. A tropism is a growth in response to a stimulus; so light and water in the plant’s case. There are different types of tropisms: Positive tropisms are when growth is towards the stimulus - so the plant growing towards the light to maximise the stimul
Hormones are chemical messengers secreted by glands and have specific target organs. In this lesson, you will learn about hormones that stimulate changes to your body during puberty. Puberty is the timeframe when secondary sexual characteristics develop – in other words, when a boy matures physi
Hunger and body weight are affected by these three important hormones: leptin, insulin and ghrelin. Together, they play a key role in regulating our metabolism. Author: 3sat/nano, Telekult, Petra Cyrus, Thomas Henk Henkel+Knut Muhsik, Lena Hatebur) Translation and Dubbing: alugha Click here to
Leptin is very important for the regulation of our body weight. If the fat cells are sufficiently filled, they send out leptin and thus signal that you are sated. Author: 3sat/nano, Telekult, Petra Cyrus, Thomas Henk Henkel+Knut Muhsik, Lena Hatebur), tricky GbR Translation and dubbing: alugha Cl
If a plant has enough water, minerals and energy it will grow right? Well sort of… but there is more to it - like why do plants bend towards the light and not just grow straight? And how come the stem grows up but the roots grow down? It isn’t as if a plant has eyes to tell it where the sun is. Pl
The menstrual cycle begins between the ages of 9 and 13. It brings physical and hormonal changes into four phases: menstruation, follicular phase, ovulation and luteal phase. This cycle typically lasts 28 days. It affects mood, health and fertility. The experiences are very different. Some have few
Hyperparathyroidism is a condition in which one or more of your parathyroid glands become overactive and release (secrete) too much parathyroid hormone (PTH). This causes the levels of calcium in your blood to rise, a condition known as hypercalcemia. #hyperparathyroidism #PTHhormone #parathyroidg
Children who are physically, cognitively, or emotionally neglected often suffer from anxiety. As a result, her body produces stress hormones. When this happens frequently, these hormones become toxic to the developing brain, which can later suppress emotional and cognitive well-being for a lifetime.
Bisphenol A - or BPA for short - is one of the more contentious chemicals on the block at the moment. Companies making BPA, and the products that contain it, claim that the substance is safe if used sensibly. But others aren't so sure. But before getting into the risks and benefits, it makes sens
Why is there a trade in or with emissions? Who specifies the framework conditions and how does emissions trading actually work? An explanatory film gives short and concise answers to these questions and explains the contribution of emissions trading to climate protection. Source: https://www.umwelt
