RRB Nsg. Superintendent-21 July 2019 (Shift-2nd)
Applied Physiology
Easy

The organelles concerned with the metabolic processes are present inside the:

Appeared in: RRB Nsg. Superintendent-21 July 2019 (Shift-2nd)

Explanation

  • The question asks to identify the location that contains the organelles responsible for metabolism.
  • The cytoplasm is the entire substance within a cell membrane, excluding the nucleus. It is composed of the cytosol (a gel-like fluid) and all the organelles suspended within it.
  • Organelles with key metabolic functions, such as mitochondria and peroxisomes, are embedded and located within the cytoplasm.
  • Therefore, the cytoplasm is the correct answer as it is the cellular component that houses these metabolic organelles.

Why Other Options Were Wrong

  • Option A: Ribosomes are small granular structures responsible for protein synthesis. They are themselves organelles found within the cytoplasm, not a location that contains other organelles.
  • Option C: Mitochondria are the primary organelles for cellular respiration and energy production. The question asks where these organelles are located, not to identify the organelle itself. Mitochondria are located in the cytoplasm.
  • Option D: The Endoplasmic Reticulum is a network of membranes involved in protein and lipid synthesis. Like mitochondria, it is an organelle that is located within the cytoplasm.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Diagram of a Eukaryotic Cell. A labeled diagram showing the cell membrane, nucleus, and the cytoplasm filling the cell. Key organelles like mitochondria, ribosomes, and the endoplasmic reticulum should be clearly shown suspended within the cytoplasm to illustrate the spatial relationship.
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Location of cellular organelles as background academic context rather than a clinical decision trigger.
  • Understanding cellular organization is fundamental to grasping pathophysiology. For example, mitochondrial diseases are a group of disorders caused by dysfunctional mitochondria. Since mitochondria are in the cytoplasm of every cell (except red blood cells), these diseases can cause a wide range of systemic symptoms, affecting everything from muscle function to neurological processes.
  • What if? If the question had asked for the specific site of glycolysis (the initial breakdown of glucose), the correct answer would be the cytosol. The cytosol is the fluid component of the cytoplasm, highlighting that different metabolic stages occur in different cellular compartments.
How to Approach the Question
  • First, analyze the question's keywords: 'organelles', 'metabolic processes', and 'present inside'.
  • Recognize that 'organelles concerned with the metabolic processes' refers to structures like mitochondria.
  • The key phrase is 'present inside', which indicates the question is asking for a location or a container, not the functional unit itself.
  • Recall the basic structure of a cell. The cytoplasm is the general substance that fills the cell and contains all the organelles.
  • Evaluate the options: Ribosome, Mitochondria, and Endoplasmic Reticulum are all examples of organelles. Cytoplasm is the medium in which they are located.
  • Conclude that the organelles are present inside the cytoplasm, making it the most logical answer.
Concept Tested & Keywords
  • Concept Tested: Location of cellular organelles
  • Stem keywords: organelles, metabolic processes, present inside
  • Lead-in keywords: present inside

Question ID

QXml1E94YBtg1m9P04BGB6

Practise the full RRB Nsg. Superintendent-21 July 2019 (Shift-2nd)

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