Cyanobacteria also known as one of the first organism on earth are responsible for producing nearly 80% of the oxygen on earth.
The most important thing or help can you give to the
individual or family is emotional support because the stress is not only to the
person having the alzheimer’s but also to the family who is taking care or
giving the first hand care giving.
Cholecystokinin is hormone that is secreted in response to pancreatic enzymes.
<h3>What is Cholecystokinin?</h3>
Cholecystokinin is a peptide hormone that is secreted by the duodenal mucosal of enteroendocrine cells as a result of stimulation of food by chemical substances. This hormone help to activate pancreatic enzyme secretion when it stimulate some cells of vagal afferents.
Therefore, Cholecystokinin is hormone that is secreted in response to pancreatic enzymes.
Learn more about cholecystokinin below.
brainly.com/question/6992153
Scientists believe that over 99% of species that once existed on Earth are now extinct.
D. over 99 percent
Answer: Complex IV, also known as cytochrome c oxidase, oxidizes cytochrome c and transfers the electrons to oxygen, the final electron carrier in aerobic cellular respiration. The cytochrome proteins a and a3, in addition to heme and copper groups in complex IV transfer the donated electrons to the bound dioxygen species, converting it into molecules of water. The free energy from the electron transfer causes 4 protons to move into the intermembrane space contributing to the proton gradient. Oxygen reduces via the following reaction:
2 cytochrome c(red) + ½O2 + 4 H+(matrix) -> 2 cytochrome c(ox) + 1 H2O + 2 H+(intermembrane)
Explanation:
In the electron transport chain (ETC), the electrons go through a chain of proteins that increases its reduction potential and causes a release in energy. Most of this energy is dissipated as heat or utilized to pump hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space and create a proton gradient. This gradient increases the acidity in the intermembrane space and creates an electrical difference with a positive charge outside and a negative charge inside. The ETC proteins in a general order are complex I, complex II, coenzyme Q, complex III, cytochrome C, and complex IV.