PLZZ
Answer:
speaker
Explanation:
speaker runs by the help of electrical energy and the magnetic energy is used and finally it is converted into sound energy
Answer:
the motor in today's standard power drills. the motor in today's standard power saws. the motor in an electric tooth brushes.
Explanation:
More axamples could be that both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field.
Answer:
(A.) three dimensional folded structure of the protein
Explanation:
The secondary structure of a protein is a regular structure built from interactions between neighboring amino acids as the polypeptide starts to fold or coil into its functional three-dimensional shape.
The two kinds of secondary structures arising from this polypeptide 'flexing' are either the α-helix and β-pleated structures, all of which are vital to globular and fibrous proteins.
The secondary structure of a protein is the initial folding of the amino acid chain into a corkscrew-like shape (alpha helix) or a zigzag folding pattern (beta-pleated sheet). This occurs due to hydrogen bonding between the peptide bonds.
The secondary structure of a protein refers to the sense in which the polypeptide chain (the linear assembly of amino acids) begins to fold. This folding occurs due to the formation of hydrogen bonds between the peptide bonds in the chain. The two most common types of secondary structures are alpha helix (corkscrew-like shape) and beta-pleated sheet (zigzag folding pattern). Therefore, the correct answer to your question is option d: the twisting of the amino acid chain into a corkscrew-like shape or into a zigzag folding pattern.
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