In Some Cases the Epiphyseal Plate of the Long Bones

question 74

Multiple Choice

In some cases the epiphyseal plate of the long bones of children closes too early. What might be the cause?

• A) elevated levels of sex hormones
• B) too much vitamin D in the diet
• C) osteoblast activity exceeds osteoclast activity
• D) overproduction of thyroid hormone

---

Definitions:

2-Methylbut-1-ene

An alkene with the formula C5H10, featuring a double bond at the first position and a methyl group at the second position.

Elimination Products

Substances formed from the removal of atoms or groups in a molecule, often resulting in the formation of double or triple bonds.

Stereochemistry

The branch of chemistry that involves the study of the spatial arrangement of atoms in molecules and their effects on the chemical and physical properties of substances.

Reaction Pathway

The sequence of chemical reactions or steps leading from reactants to products, illustrating the process and intermediates formed.