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AURORKA [14]
3 years ago
7

Select the true statements about secondary structure

Biology
1 answer:
quester [9]3 years ago
7 0

Answer: The statemens correct are: A) In a β-pleated sheet, the side chains extend above and below the sheet,

C) The α-helix is held together by hydrogen bonds between the amide N-H and C=O groups

D) The secondary level of protein structure refers to the spatial arrangements of short segments of the protein

E) Peptide bonds stabilize secondary structure

Explanation: The statement B is incorrect, because the amino acid side chains extend outside the alpha-helix, not inside

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Spongy bones are also known as trabecular and cancellous bones. It is covered by compact bones and present in the long bones. They are known as spongy because they are highly vascular and porous tissues.

Osteoblast thin area creating the turbeculae space between the tissues. Spongy bones are also known for home of hematopoietic stem cells and bone marrow, which are helping to differentiate white blood cells, red blood cells, and platelets.

Some difference between spongy bone and compact bone are:

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2) Spongy bones are composed of trabeculae and compact bones are composed of osteons.

3) Spongy bones are known as cancellous and compact bones are known as cortical bones.

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