I would say d. Multi-part protein that reversibly binds to oxygen molecules (...)
I believe the primary structure will be preserved. The secondary level of proteins is defined by patterns of hydrogen bonds between the main chain peptide groups. Therefore distorting the Hydrogen bonds disrupts the secondary structures. The primary structure on the other hand is not affected by disruption of the hydrogen bond since these structures refers to the sequences of amino acids in the polypeptide chains that are joined by the peptide bonds.
they can be up to approximately 200 feet tall..They grow just bout 13 feet tall each year depending on the tree
Hope i helped <3
1) if the cake has a heavy texture the flour might not be light enough for the dough or just because it doesn't have enough air in it
SOLUTION: fold some more air into it, or invest in some different flour.
