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Explain Light in cell Metabolism?
Energy for almost all organisms on earth is derived directly or indirectly from light energy produced by the sun. Sunlight consists of energy packets called photons that travel in waves of various lengths.
Wavelength refers to the distance between the peak of one wave to the peak of the next wave. We see light as different colors depending upon the wavelength of the light our eyes receive. Light containing visible light of all wavelengths appears white. The shorter the wavelength of light, the more energy it has. The energetic ultraviolet rays are shorter than 400 nm; infrared rays are longer than 700 nm.
White light contains all of the wavelengths of light. When white light strikes an object, substances called pigments absorb certain wavelengths and reflect others. Objects appear the color of the reflected light. So, if an object appears to our eyes as red, the pigment in the object is absorbing all of the other colors (wavelengths) except red, and only red wavelengths are reflected to our eyes!
A graph of absorption measured against wavelength for a given pigment is called an absorption spectrum. An action spectrum is a graph of photosynthesis rates for different wavelengths of incident light for a given pigment.
Ethnobotany : This is the study of relationship between tribals and plants. Ethnobotany is from "ethnology" - study of culture or "botany" - study of plants. This is the scientific
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W a s t e Management in other species Solid and pellet nature of sheep and goat faecal matter make it easier to handle. This manure can easily be swept off the floors and d
Define the neurological disorders of dysphagia? In neurological disorders, damage to cranial nerves can lead to weak and poorly co- ordinated tongue movements, which results in
An osteoclast is a type of bone cell that absorbs bone tissue by removing its mineralized matrix and breaking up the organic bone. This process is known as bone resorption
Response to Cold - Responses of Plants to Stress Let us first see what happen to a plant when it is exposed to a cold climate with temperatures below 0°C. If the temperature i
Q. Explain about Tropical Rain Forests? As you approach the equator the climate becomes increasingly hot and seasonal variation in climate decreases resulting in practically th
Phototropism - Root and Shoot Morphogenesis Paratonic growth movement of part of a plant in response to light, e.g. bending of stems of indoor plants towards a window, brough
Explain Indications of Root-End Filling (REF) Retrofilling a. Persistent periapical pathosis resulting from an inadequate apical seal that cannot be corrected nonsurgically,
Primary amines can act as bases; they can- Select one: a. Absorb a proton to become R-NH2+2 b. Release a proton to become R-NH2+ c. Absorb a proton to become R-NH3+
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