Question

question 30 of 32
select the descriptions that apply to the smooth endoplasmic reticulum.
□ a stack of membranes involved with cellular secretion
□ a centrally located membranous structure with attached ribosomes
□ an organelle that synthesizes fatty acids, phospholipids, and steroids
□ a membrane - enclosed organelle that stores dna
□ a membranous organelle around the nucleus that does not produce proteins

Explanation:

The smooth endoplasmic reticulum (SER) lacks ribosomes (so does not produce proteins) and is involved in lipid synthesis (fatty acids, phospholipids, steroids). A stack of membranes for secretion describes the Golgi apparatus; attached ribosomes are characteristic of rough ER; DNA storage is the nucleus.

Answer:

an organelle that synthesizes fatty acids, phospholipids, and steroids, a membranous organelle around the nucleus that does not produce proteins