Understanding the Cell's Outer Boundary
The question asks to identify the outermost layer of a cell responsible for separating its internal components from the external surroundings. Let's analyze the options:
- Smooth muscle cell and Nerve cell are specific types of specialized cells, not general cell coverings.
- Organelles are internal structures within the cell, like the nucleus or mitochondria, and do not form the outer boundary.
- Plasma membrane (also known as the cell membrane) is a thin, flexible barrier that surrounds the cytoplasm of every cell. Its primary function is to control what enters and exits the cell, thus separating the cell's internal environment from the external environment.
Therefore, the plasma membrane perfectly fits the description of the outermost covering that separates the cell's contents from its external environment.
Final Answer: The correct answer is the Plasma membrane.
Similar Questions
- The energy currency of the cell is called as :
- Cytoplasm is a jelly-like fluid that is present between:
- A jelly-like substance between the nucleus and the cell membrane is called:
- A single-celled fertilised egg is called a/an:
- Which of the following is a membrane-bound sac filled with digestive enzymes?
- Who coined the term 'protoplasm'?
- Diffusion is a process by which:
_____________ are known as the powerhouse of the cell.
- Which of the following are present only in plant cells?
What is the main characteristic of cells in the meristematic phase of growth in plants?
Important Questions from Cell
Which of the following is an epithelial tissue?
I. Squamous
II. Ciliated
Cells of ______ and ______ tissues are living cells.
The process of converting ammonia into nitrates is called:
Which of the following is not true about prokaryotic cells?
Fore limbs of whale, bat, tiger and man are examples of
