What is a memory cell in digital electronics?

Answer 1

A memory cell is an individual part of memory, usually just a single bit. A DRAM "cell" is composed of a transistor and a capacitor, with memory refresh used to keep the charged capacitors charged and the drained ones drained until the values change. A SRAM cell is comprised of a transistor latch gate using 4-6 transistors. SRAM memory takes more power but does not need refreshed.

Answer 2

the memory elements are flip flops, which are also used to make registers which can be used for high storage purpose