Which of the following is a jelly-like substance present between the cell membrane and the nucleus?

Appeared in: NHM UP Staff Nurse-2023 shift 1st

Explanation

Cytoplasm refers to the entire content within a cell's membrane, with the exception of the nucleus.
It is composed of cytosol, the actual jelly-like, semi-fluid substance, and all the organelles that are suspended within it.
The cytoplasm is the primary site for most of the cell's metabolic activities, including glycolysis.

Option B: Plastids are membrane-bound organelles, such as chloroplasts and chromoplasts, not the fluid substance that fills the cell.
Option C: The cell wall is a rigid, protective layer found outside the cell membrane in plant cells, fungi, and bacteria. It is not the internal substance of the cell.
Option D: Organelles are the specialized, functional structures that are suspended within the cytoplasm. They are components of the cytoplasm, not the substance itself.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Cellular components and their functions as background academic context rather than a clinical decision trigger.
A solid understanding of basic cell biology is foundational for nursing practice. It is essential for comprehending pathophysiology, as most diseases originate from dysfunction at the cellular level.
Pharmacology is heavily based on cell biology. Many drugs exert their effects by targeting specific receptors, enzymes, or organelles within the cell's cytoplasm or on its membrane.
What if? If the question had asked for the 'control center' of the cell that contains the genetic material, the correct answer would have been the nucleus.

How to Approach the Question

This is a factual recall question testing fundamental knowledge of cell biology.
First, identify the key descriptors in the question stem: 'jelly-like substance' and 'present between the cell membrane and the nucleus'.
Next, evaluate each option based on these descriptors.
Recall the definition of Cytoplasm: It is the material filling the cell, enclosed by the cell membrane and surrounding the nucleus. This perfectly matches the question's description.
Eliminate the other options by definition: Plastids and Organelles are structures within the cytoplasm, and the Cell wall is an external layer not found in this location in animal cells.

Concept Tested & Keywords

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E6 Physiology Essentials Sembulingam 10e Part 1 p. 28-30

E6 Anatomy Grays 43e Vol 1 Part 1 p. 31-33

Practise the full NHM UP Staff Nurse-2023 shift 1st

Attempt every question from this paper in a timed mock, then review the full solution for each one.