<span><span>anonymous </span> 3 years ago</span>Proteins are involved in almost all of the cell's functions. They can act as:
Transportation: they can transport hydrophobic molecules in blood for example
Regulation: protein hormones and enzymes
Receptor: can act as receptors on cell surface and in the subsequent signal transduction (G-protein for instance)
It is true that all proteins are made up of up to 20 amino acids, but there are several reasons for their diverse actions:
-One reason is the possible sequence and number of amino acids: Met-Ser-His is different from Met-His-Ser for example. Besides, you have different chain length, for a protein is made up of long chain of polypeptide (longer than 50-70 amino acids) and can have any of the 20 amino acids with repetition, so using simple probability, this can provide up to practically unlimited combination with proteins that have chains of thousands of amino acids.
-Another very crucial reason for the diversity of protein action is the conformation. A protein passes by at least 3 conformational stages before becoming mature. The straight amino acid chain is the primary structure of the protein that can never be active. Spatial modification of this primary structure results in a secondary structure, Helix or Beta-pleated sheets (or other coiling structure), that is also inactive. Further coiling and bending of the secondary structure produce a 3-dimentional conformation that is the active form of the protein. Moreover, many proteins can undergo further conformational rearrangement and combination with other protein sub-units producing a quaternary structure.
Energy input is required as it is the activation energy needed for a reaction to start.
NPP can be directly assessed by measuring plant traits or harvesting plant material on the ground, but across large areas remotely sensed images can be used to estimate NPP.. im trying to help
It’s is heterotroph, hope this helps!
Given what we know, we can confirm that the three pathways of photosynthesis (C3, C4, and CAM) are all similar in that they use CO2 as the substrate in order to produce sugar, which is carbon-based.
<h3>Why are these pathways similar?</h3>
- These pathways all produce carbon-based molecules in the form of sugars or carbohydrates.
- These pathways are also similar in that they use carbon dioxide as the substrate in order to fuel these reactions and create sugar.
- Finally, they are also similar in terms of the use of carbon and the production of carbon-based molecules in that they all use the Calvin cycle to complete this process.
Therefore, we can confirm that each of the three pathways of photosynthesis are similar in terms of carbon and the formation of carbon-based molecules in that each of them uses the Calvin cycle in order to turn carbon dioxide into sugars.
To learn more about the Calvin cycle visit:
brainly.com/question/13984369?referrer=searchResults
