Question

In adult human beings, growth and cell division stop in ________.
A. Skin cells
B. Bone marrow
C. Testes and Ovary
D. Bone cells

Answer 1

Most tissues in the body grow by mounting their cell number, but this growth is normally regulated so as to keep a balance b/w the different tissues. In the adults, most of the cell division is usually engaged in tissue revitalisation rather than the growth and many types of cells undergo unremitting replacement. Skin cells, for eg, are continuously sloughed off and replaced.

Complete answer:
Bone of the tissues are incessantly remodeled by the concerted actions of the bone cells. These comprise the bone resorption by osteoclasts & bone configuration by the osteoblasts. Osteocytes normally act as mechanosensors & tbe orchestrators of the bone modifying process. This process is usually under the power of local & the systemic aspects in the adult human. In addition, in the adult human beings, growth & cell division stops in the bone cells.
In the adult organisms, when the nerve cell extensions are being severed, they are usually faced with a forest to prevent the signs. As long as these signs are present, the cell extensions cannot get cultivated further. This means that once the contact with partner cells has been wrecked off, it cannot then be re-founded.
Bone marrow is a soft tissue inside some of our bones, like your hip and the thigh bones. It usually contains stem cells. Growth is generally not visible in the bone marrow.

Hence, the correct answer is option (D).

Note: Bone is a mineralised connective tissue which shows 4 types of cells: bone lining cells, osteocytes, osteoblasts, & the osteoclasts. Bone exerts significant functions in the body like locomotion, defence of soft tissues, calcium and the phosphate storage, & harboring of the bone marrow. Bone is a highly dynamic organ which is constantly reabsorbed by the osteoclasts formed by the osteoblasts. Nerve cells in hen correspond with each other as well as with the other cells by electric signals(nerve impulses), which in turn then allow effector organs to react to the appropriate stimuli.