Chat with AIExam 3: B: Anatomy of Cells
The membranous structure containing substances that protect the cell from harm are:
(28) 
VerifiedD
Which fiber is the smallest of the cell fibers?
(32) VerifiedB
Explain the functions of the cell membrane.
(35) 
Answered by Examlex AI CopilotThe cell membrane, also known as the plasma membrane, serves several important functions in a cell.
First and foremost, the cell membrane acts as a barrier, separating the interior of the cell from the external environment. This barrier is crucial for maintaining the internal environment of the cell and protecting it from potentially harmful substances outside.
Additionally, the cell membrane is selectively permeable, meaning it allows certain molecules to pass through while blocking others. This selective permeability is essential for controlling the movement of substances in and out of the cell, which is necessary for maintaining the cell's internal balance and carrying out various cellular processes.
The cell membrane also plays a role in cell communication and recognition. It contains various proteins and receptors that allow the cell to interact with its environment and other cells. These interactions are important for processes such as cell signaling, immune response, and cell adhesion.
Furthermore, the cell membrane helps to maintain the cell's shape and structure. It provides support and stability to the cell, while also allowing for flexibility and movement.
Overall, the cell membrane is a vital component of a cell, serving as a protective barrier, regulating the passage of molecules, facilitating communication and recognition, and contributing to the cell's structure and function.
The cell extension that assists epithelial cells in absorption is called:
(34) Name and explain the function of each of the three types of cell fibers in the cell.
(30) Match each term to the phrase that describes it best.
-microtubule organizing centers that also play a role in cell division
(35) Explain what structure on the cell membrane makes it difficult to transplant an organ from one person into another.
(35) Match each term to the phrase that describes it best.
-cell fiber that can be found in muscle cells
(37) Match each cell structure with its corresponding description or function.
-functions in processing and packaging of protein molecules to be exported from the cell
(32) Match each term to the phrase that describes it best.
-largest of the cell fibers; act like "engines" for the cell
(28) Tiny indentations of the plasma membrane that resemble caves are called:
(37) In the cell membrane,the hydrophobic part of the phospholipid molecule:
(36) Match each cell structure with its corresponding description or function.
-protein factory made up of two subunits
(36) Which of the following organelles is considered a nonmembranous organelle?
(33) Match each cell structure with its corresponding description or function.
-outer boundary of the cell made up of phospholipids and proteins
(36) Describe the structure and function of the nucleus.Include the structure and function of the nucleolus.
(26) 
Filters
- Essay(0)
- Multiple Choice(0)
- Short Answer(0)
- True False(0)
- Matching(0)