svtlocitlivý

Svtlocitlivý is a Czech term that translates to "light-sensitive" in English. It describes the property of certain materials or substances that change or decompose when exposed to light. This phenomenon is common in chemistry and biology, where light can trigger chemical reactions or affect biological processes.

In photography, the term refers to the light-sensitive emulsions found on photographic film and paper. These emulsions, typically containing silver halide crystals, undergo a chemical change when exposed to light, forming a latent image that can then be developed. Many organic molecules are also svtlocitlivé, meaning they can degrade or undergo isomerization upon exposure to ultraviolet or visible light. This is why certain medications are stored in amber-colored bottles to protect them from light-induced degradation.

In biology, organisms or parts of organisms can be svtlocitlivý. For example, some microorganisms have pigments that are sensitive to light, playing roles in photosynthesis or photoprotection. The human eye's retina contains photoreceptor cells (rods and cones) that are highly svtlocitlivý, enabling vision. Conversely, some individuals or conditions can exhibit increased light sensitivity, known as photophobia, where bright light causes discomfort or pain. Understanding svtlocitlivost is crucial in various fields, from material science and pharmacology to environmental studies and medicine.