Stomach ulcer is an open sore appearing in the inner layer (mucosa) of the stomach, which causes dull or burning pain in the upper middle abdomen during or shortly after the meal; avoiding eating and losing weight may follow.
Auxins are a type of hormone, or growth substance, acquired from plants. Plant hormones are molecules manufactured by plants to accelerate, inhibit or modify its growth.In plants, growth occurs during cell division, cell elongation and cell differentiation.uxin, or indoleacetic acid (iaa), carries a very proficient relation to growth. It is in the midst of the most typical plant hormones and continues to be isolated from numerous plants. Studies with the response of plants to light, phototropism, are what led into the discovery and isolation of auxins.
Light is so important for plant growth that they actually bend over backwards to get their share! Think about it this way. The plant cells that are on the shady side of the plant actually grow longer than the cells on the sunny side. These longer cells grow this way because of a chemical in them called an auxin. An auxin, is a plant growth hormone that helps regulate shoot growth. Under normal light conditions auxins are spread out in the plant. But when sunlight varies, auxin is broken down on the sunnier side of the stem. The higher concentration of auxin on the shady side causes the plant cells on that side to grow more so it bends toward the light. Because light is the energy source for plant growth, plants have evolved highly sensitive mechanisms for perceiving light.