Mindblown: a blog about philosophy.
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Deterministic and Stochastic Effects
In radiobiology, most adverse health effects of radiation exposure are usually divided into two broad classes: Deterministic Effects In radiobiology, deterministic effects (or non-stochastic health effects) are health effects, that are related directly to the absorbed radiation dose and the severity of the effect increases as the dose increases. Deterministic effects have a threshold below which no detectable clinical effects do…
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Acute Dose and Chronic Dose
Biological effects of radiation and their consequences depends strongly on the level of dose rate obtained. In radiobiology, the dose rate is a measure of radiation dose intensity (or strength). Low-level doses are common for everyday life. In the following points there are a few examples of radiation exposure, which can be obtained from various sources. From biological…
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High-LET and Low-LET Radiation
As was written, each type of radiation interacts with matter in a different way. For example charged particles with high energies can directly ionize atoms. Alpha particles are fairly massive and carry a double positive charge, so they tend to travel only a short distance and do not penetrate very far into tissue if at all. However alpha…
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Cellular Damage – Radiobiology
All biological damage effects begin with the consequence of radiation interactions with the atoms forming the cells. All living things are composed of one or more cells. Every part of your body consists of cells or was built by them. Although we tend to think of biological effects in terms of the effect of radiation on living cells, in…
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What is Radiobiology?
Radiation biology (also known as radiobiology) is a medical science that involves the study of biological effects of ionizing radiation on living tissues. Radiation is all around us. In, around, and above the world we live in. It is a natural energy force that surrounds us. It is a part of our natural world that has been here since…
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Plant Growth And Development
The process of plant development starts right from germination under favourable environmental conditions. Generally, plant growth is indeterminate as they retain their capacity to grow throughout their lives because of the presence of meristems. The growth of plants is, however measurable through parameters such as – dry weight, increase in fresh weight, length, area, volume,…
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Respiration In Plants
Food that is required for life processes comes from photosynthesis. Cellular respiration results in the release of energy used for the synthesis of ATP which involves glycolysis. Aerobic respiration leads to complete oxidation of organic substances in the presence of oxygen, which is common in higher organisms. To release and utilize the energy stored in…
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Photosynthesis In Higher Plants
Plants synthesize their own food through photosynthesis and hence are called autotrophs. Photosynthesis is important since it is the primary source of food for all living entities on earth and it releases oxygen in the atmosphere which we inhale to breathe. It takes place in chloroplasts through light and dark reactions using 4 pigments- Chlorophyll…
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Mineral Nutrition
Plant nutrition is an important aspect instrumental in the growth of plants. It gives an insight into the methods used to identify essential elements for the development of plants, the role of these elements, criteria to identify their essentiality, deficiency symptoms and mechanism of absorption of these elements. It also conveys the importance of nitrogen…
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Transportation In Plants
Plants have a distinct vascular system (xylem and phloem) which helps in transporting nutrients and water from roots to all the parts of the plant through translocation. Transport of water and nutrients in rooted plants is unidirectional or multi-directional. Modes of transportation can either be passive which occurs through diffusion, facilitated diffusion to be precise…
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