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Cell Structure And Function Important Questions for NEET Biology - 2026

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Practice Cell Structure And Function Important Questions - Free PDF Download

Get ready for NEET Biology with Vedantu’s Cell Structure And Function Important Questions. This key chapter explains Cell Theory and why the cell is the unit of life. These questions are created for NEET and cover every topic you need.


Study about prokaryotic and eukaryotic cells, organelles, the difference between plant and animal cells, and major cell structures. You will also find questions on biomolecules, enzymes, and cell division like mitosis and meiosis. All topics match the actual NEET Biology syllabus.


These Vedantu NEET Important Questions with Answers make revision easy and improve your recall. Practice regularly to build confidence. You can easily download the free PDF of these important questions and strengthen your exam preparation.


Practice Cell Structure And Function Important Questions - Free PDF Download

1. Multiple choice questions.


1. Which of the following organelles is known as the ‘powerhouse of the cell’?


  • (a) Ribosome
  • (b) Lysosome
  • (c) Mitochondria
  • (d) Golgi apparatus

Answer: (c) Mitochondria


2. Plant cell walls are primarily composed of:


  • (a) Cellulose
  • (b) Starch
  • (c) Glycogen
  • (d) Chitin

Answer: (a) Cellulose


3. Which statement distinguishes prokaryotic from eukaryotic cells?


  • (a) Presence of membrane-bound nucleus
  • (b) Presence of cell wall
  • (c) Presence of ribosomes
  • (d) Presence of plasma membrane

Answer: (a) Presence of membrane-bound nucleus


4. Which of the following is not a component of the endomembrane system?


  • (a) Endoplasmic reticulum
  • (b) Mitochondria
  • (c) Golgi apparatus
  • (d) Lysosome

Answer: (b) Mitochondria


5. What is the main function of ribosomes?


  • (a) Lipid synthesis
  • (b) Protein synthesis
  • (c) ATP production
  • (d) DNA replication

Answer: (b) Protein synthesis


2. Very Short Answer (VSA).


1. Define cell theory.


Answer: Cell theory states that all living organisms are composed of cells and products of cells, and all cells arise from pre-existing cells.


2. Name two cell organelles that contain their own DNA.


Answer: Mitochondria and plastids contain their own DNA.


3. What is the main function of lysosomes?


Answer: Lysosomes are responsible for intracellular digestion and removal of waste materials.


4. Name the basic structural unit of life.


Answer: The basic structural unit of life is the cell.


5. Which biomolecule is the main component of cell membranes?


Answer: Phospholipids are the main component of cell membranes.


3. Short Answer Questions.


1. Distinguish between prokaryotic and eukaryotic cells based on the nucleus and organelles.


Answer: Prokaryotic cells lack a true nucleus and membrane-bound organelles, whereas eukaryotic cells have a well-defined nucleus surrounded by a nuclear membrane and possess membrane-bound organelles like mitochondria, Golgi bodies, and endoplasmic reticulum.


2. Explain the significance of the plasma membrane in cells.


Answer: The plasma membrane acts as a selectively permeable barrier controlling entry and exit of substances. It helps maintain cellular integrity, allows communication, and plays a role in cell recognition and signaling.


3. Write differences between plant cell and animal cell.


Answer: Plant cells have a cell wall, chloroplasts, and large central vacuole, while animal cells lack cell wall and chloroplasts but have centrioles. Plant cells are generally rectangular; animal cells are rounded or irregular in shape.


4. What are cilia and flagella? Give their function.


Answer: Cilia and flagella are hair-like structures present on cell surfaces. Cilia are short and numerous; flagella are longer and fewer. Both aid in movement of cells or substances over cell surfaces.


5. Describe the fluid mosaic model of the cell membrane.


Answer: The fluid mosaic model states that the cell membrane is a flexible phospholipid bilayer with embedded proteins. Lipids and proteins can move within the layer, giving it fluidity, while proteins serve various functions like transport and signaling.


4. True or False Questions.


1. All enzymes are proteins.


Answer: True


2. Cristae are found in ribosomes.


Answer: False


3. Nucleolus is involved in ribosome synthesis.


Answer: True


4. Lysosomes are called suicidal bags of the cell.


Answer: True


5. DNA is absent in the nucleus of prokaryotes.


Answer: True


3. Fill in the Blanks Questions.


1. The structural and functional unit of life is the ________.


Answer: cell


2. ________ is the process of cytoplasmic division after nuclear division in cell cycle.


Answer: Cytokinesis


3. The basic repeating unit of chromatin is ________.


Answer: nucleosome


4. Microtubules are components of the ________.


Answer: cytoskeleton


5. Enzymes increase the rate of a biochemical reaction by lowering the ________ energy.


Answer: activation


Benefits of Learning Cell Structure and Function for NEET Aspirants

Understanding cell structure and function gives you a strong base in Biology for the NEET exam. It helps tackle questions on cell theory, organelles, and cell division with confidence and clarity in your preparations.


This chapter covers biomolecules, cell organelles, and differences between plant and animal cells. Focus on concepts like cell membrane structure and enzyme action to improve your accuracy and speed in Biology MCQ sections during exams.


By reviewing important questions from “Cell Structure And Function” on Vedantu, you practice concepts often asked in NEET Biology. This builds your confidence and strengthens your preparation for scoring better in the NEET 2026 exam.


FAQs on Cell Structure And Function Important Questions for NEET Biology - 2026

1. What are the most important NEET questions from the chapter ‘Cell Structure And Function’?

Common NEET exam questions from this chapter focus on differences between prokaryotic and eukaryotic cells, structure and function of cell organelles, and drawing or case-based questions about plant vs animal cell. Pay close attention to topics like cell membrane, mitochondria, and steps in the cell cycle.

2. How do assertion-reason questions appear in ‘Cell Theory’ and how can I solve them?

Assertion-reason questions in cell theory often check your understanding of basic principles versus their applications—like cell as the structural unit. To solve them:

  • First, judge each statement as true or false.
  • Next, check if the reason correctly explains the assertion.

3. Which cell organelles are frequently asked about in NEET MCQs?

MCQs often focus on the structure and function of mitochondria, Golgi bodies, endoplasmic reticulum, lysosomes, and plastids. Questions may require you to identify organelle diagrams, their roles in the cell, or specific features unique to plant or animal cells.

4. What types of questions are expected from biomolecules in this chapter?

NEET questions on biomolecules include identifying the basic structure of proteins, lipids, carbohydrates, and nucleic acids. You may get asked about types, their functions, enzyme classifications, or matching examples with correct biomolecules.

5. How can students efficiently prepare for ‘diagram-based questions’ from this chapter?

To prepare well for diagram-based questions:

  • Practice drawing and labeling cell organelles, plant and animal cells, and cell division stages.
  • Identify key parts and functions in each diagram.
  • Revise frequently asked labeled parts in NEET practice tests.

6. What are common pitfalls students face in cell cycle, mitosis, and meiosis questions?

Students often confuse the stages of mitosis and meiosis or mix up their significance. Read every question carefully, pay attention to diagrams, and memorize major differences—such as number of divisions and genetic variability produced in meiosis versus mitosis.

7. Are ‘match the following’ and statement-based NEET questions asked from ‘Cell Envelope, Membrane, and Wall’?

Yes, NEET frequently includes ‘match the following’ and statement-based questions about the cell envelope, membrane structures, and cell wall components. Practice matching functions, location, and features of each layer, and review structural differences between plant and animal cells.