BI110 Lecture Notes - Lecture 2: Phytochrome, Photomorphogenesis, Simple Eye In Invertebrates
Document Summary
Matter: anything that occupies space and has mass (all tangible substances are made of matter) Electromagnetic spectrum: made up of many different parts, one of which is the small spectrum that we see as visible light. Different wavelengths show up as different colours. (smallest=purple (400nm), largest=red(700nm)) Examples include the decomposition of plants and dinosaurs when the earth formed 3. 8 billion years ago. Electromagnetic radiation that humans can detect with their eyes (also a wave of discrete particles called photons) Wavelengh: distance between two successive peaks (photon of light) To be used, light energy must be absorbed by molecules called pigments. In chloroplasts, this is where sunlight energy is harvested into useable energy to us. Organic molecules: compounds that contain carbon and hydrogen atoms and may include other types of atoms. These are an important component of all living things. Producers: organisms that can convert co2 into organic molecules. Energy is required to complete this conversion. (sunlight)
