A Gap Junction Is a Channel That Connects Adjacent Cells

question 31

Multiple Choice

A gap junction is a channel that connects adjacent cells. What kinds of substances can pass through a gap junction?

• A) ions that can regulate heartbeat
• B) subunits of nucleic acids
• C) raw materials for protein synthesis
• D) all of these substances

---

Definitions:

Injection Mold

A manufacturing process for creating parts by injecting material into a mold to form shapes and designs.

Competitor's Product

A product or service that is offered by one or more companies operating in the same market as another company, serving as alternatives or substitutes.

Operating Cost

The expenses associated with running a business's core operations on a day-to-day basis.

Investment

The allocation of resources, such as capital or time, in expectation of generating future returns.