What Structure Is Described as a Phospholipid Bilayer Embedded with Proteins

question 46

Multiple Choice

What structure is described as a phospholipid bilayer embedded with proteins and sterols that regulates the type and amount of chemicals that pass in and out of a cell?

• A) Cell wall
• B) Mitochondria
• C) Endoplasmic reticulum
• D) Plasma membrane

---

Definitions:

Direct Labor

Costs associated with the employees who are directly involved in the production of goods or services.

Indirect Labor

Labor costs associated with support work that does not directly contribute to the production of goods or provision of services but is necessary for operations.

Direct Materials

Raw materials that can be directly traced to the production of specific goods or services.

Indirect Materials

Materials used in the production process that are not directly traceable to the finished product, such as lubricants and cleaning supplies used in machinery.