Answer:
Milk is all bad
Explanation:
A 2012 study published by the American Medical Association showed that the most active girls who consumed more dairy and calcium actually experienced more stress fractures compared with those who consumed less. Similarly, another study found that the more milk teenagers consumed, the more bone fractures they later experienced as adults.
Answer/Explanation:
If a protein has a quaternary structure it is formed when many subunits get together.
- true. The quaternary structure of a protein is the final stage in its assembly, when structures from multiple polypeptides come together, forming a multi-subunit protein (e.g. a dimer if 2, a trimer if 3 and so on)
Monomers form the secondary structure of proteins.
- false, they form the tertiary structure
The charges on the functions groups of the amino acids creates the beta pleated sheets and alpha helix structures that are the secondary level of structure in proteins.
- false, it is mostly the peptide backbone that causes the alpha helices and beta sheets to form
The order of the amino acids is the primary structure of proteins. - true. The amino acid sequence linked together by peptide bonds is the polypeptide sequence, which then forms increasingly complex structures when folded.
The tertiary structure of proteins is formed when the B sheets and alpha helices organize themselves into a more complex shape. - true. These complex structures can further interact with one another to form increasingly organized domains. The amino acid side chains possess different properties that form different bonds with one another.
The primary structure of proteins is formed from the amino groups on the proteins. - false, the primary structure is formed by the sequence of amino acids in the chain, determined by the mRNA sequence from which the protein is synthesised.
Osteoblasts are the cells in the bone tissue that are responsible to form bone tissue itself. This is the process that allows bones to grow. To counteract this process, osteoclasts, another type of cell from the bone tissue, have the role to break down bone tissue by molecular processes - enzymatic and chemical.
