While investors may revere this copper for its value, collectors are invariably impressed by the unique designs that adorn these collectible copper rounds. With their lustrous finish and superbly detailed designs, these copper rounds are perfect for giving as gifts for birthdays, graduations, or the holidays.
Simplified photorespiration and Calvin cycle. Photorespiration (also known as the oxidative photosynthetic carbon cycle, or C2 photosynthesis) is a process in plant metabolism which attempts to reduce the consequences of a wasteful oxygenation reaction by the enzyme RuBisCO.
1. cellular respiration-the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs. internal respiration, respiration.