Cells that are found in small depressions on the endosteal surfaces are the

a) osteolytic cells.
b) osteoclasts
c) osteoblasts.
d) osteocytes.
e) osteogenic cells

Osteoclasts.

Explanation:

Osteoclasts may be defined as the cells  that helps in the breakdown of the bone tissue. Osteoclast plays an important role in the maintenance of the bone structure.

Osteoclasts cells are found in the small depression of the endosoteal surface. This is also known as  Howship's lacunae. They shows the foamy appearance in the cell. The osteoclast can form the specialized cell membrane known as ruffle border.

Thus, the correct answer is option (B).

a neutral ph of 7 and normal organism temperature is needed for a certain enzyme to be effective.  

what would happen to the enzyme if the ph and/or temperature fluctuate greatly from the norm?  

a.the enzyme’s hydrogen bonds will break.  

b.the activation energy will increase.  

c.more product will be formed.

d.the ideal temperature and ph for the enzyme function will decrease.  

the answer would be 3