Answer:
The three dimensional structure of a protein has the following levels: primary, secondary, tertiary and Quaternary.
1. Primary structure of protein is the unique order or <u>sequence of amino acids</u> in a polypeptide chain. The amino acids are linked together by<u> peptide bonds.</u>
2. Secondary structure of protein is the <u>folding or coiling of the polypeptide</u> chain to form a three dimensional structure. It is of two types: α-helix and β-sheets. This structure is stabilized by <u>hydrogen bonding</u>.
3. Tertiary structure of a protein refers to the<u> compact globular structure</u> stabilized by <u>non-specific hydrophobic interactions, hydrogen bonding, salt bridges and disulfide bonds</u>.
4. Quaternary structure of a protein is formed by the<u> aggregation of multiple polypeptide chains.</u> It is stabilized by <u>non-covalent interactions and disulfide bonds.</u>
A reaction or process which entails only partial burning of a fuel. This may be due to a lack of oxygen or low temperature, preventing the complete chemical reaction. Carbon monoxide is produced as a byproduct from incomplete combustion of carbon.
Answer:
The HWA attacks eastern hemlock trees in forests and ornamental hemlock trees found in our residential landscaping. It feeds on the hemlock trees' young twigs by sucking the sap, causing their buds to die and needles to dry out and drop from the plant prematurely i think
hope i helped!!