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Biology - Cell - The Unit of Life

Practise 21 NEST (NISER) previous year questions on Cell - The Unit of Life, compiled from papers spanning 2012 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEST (NISER) tests.

Cell - The Unit of Life has been asked in 14 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 21 questions in all. 14% of them were easy, 86% moderate and 0% tough. Most of its questions came from 2024, with 3 questions that year. In the last three years (2024–2026) it had 4 questions across 4 papers, about 1 per paper.

The chapter's 2 topics are not weighted equally: Cell Organelles (18 questions, 86%) and Cell Membranes (3 questions, 14%) have been asked the most. Cell Organelles has also led over the last five years, with 5 questions.

  1. 1Two spherical unicellular organisms, X and Y, have the same cytoplasmic composition, metabolic pathways, and live in identical nutrient-rich2026Cell Organelles
  2. 2An experimenter was analysing homogenized cell lysate (containing mitochondrial + chloroplastic + cytoplasmic contents) of a plant tissue th2024 (Session 1)Cell Organelles
  3. 3A researcher incubated algal cells with a fluorescent-labelled cytidine analogue that can enter the cells and get incorporated into nucleic 2024 (Session 1)Cell Organelles
  4. 4Accumulation of is harmful for the survival of eukaryotic cells. The level of in the cell is kept under control by ______ .2024 (Session 2)Cell Organelles
  5. 5The permeability of molecules across a lipid bilayer depends on their size and solubility in a nonpolar solvent relative to their solubility2023 (Session 1)Cell Membranes
  6. 6Consider two spherical cells and with radii of 1 micrometer and 0.01 millimetre respectively. Choose the statement that is correct regarding2022 (Session 2)Cell Organelles
  7. 7Three different proteins ( and ) that are known to be transported from the cytoplasm into different organelles were studied. Protein was fou2021 (Session 1)Cell Organelles
  8. 8During evolution, the mitochondrial genome lost many genes, and some of these got incorporated into the nuclear genome. Proteins synthesized2021 (Session 2)Cell Organelles
  9. 9Endoplasmic reticulum is tubular, golgi apparatus is stacked flat cisternae, mitochondria are oval-shaped. However, lysosomes are spherical 2020 (Session 2)Cell Organelles
  10. 10The haemocytometer is a thickened glass slide with small chamber of grids cut into the glass and is used to count cells. Each chamber has a 2019 (Session 1)Cell Organelles
  11. 11A small viral peptide can insert its 6 amino acids (represented as a barrel) into the lipid bilayer as depicted in the figure given below. T2019 (Session 1)Cell Membranes
  12. 12Differential centrifugation is a technique used to separate cell components on the basis of size and density. The larger and denser componen2019 (Session 2)Cell Organelles
  13. 13The property that is NOT common to mitochondria and chloroplasts is2018Cell Organelles
  14. 14A piece of liver tissue is homogenized in a laboratory and the homogenate is subjected to sequential centrifugation at increasing speeds (ex2017Cell Organelles
  15. 15The presence or absence of certain sub-cellular components in the cells of three organisms ( and R ) is given below. and could most likely b2017Cell Organelles
  16. 16Students in a biology laboratory were asked to view certain cells microscopically and measure the size of a single cell. They were given a c2016Cell Organelles
  17. 17The cellular structures absent in animal cells are2015Cell Organelles
  18. 18A living cell is characterized by the presence of several cellular structures and molecular processes. The correct statement regarding livin2015Cell Organelles
  19. 19Which of the following properties of cellular transport across cell membranes would be applicable for transport of molecules which have a si2014Cell Membranes
  20. 20Unlike animal cells, plant cells are characterised by the presence of a large central vacuole. The central vacuole performs a variety of fun2013Cell Organelles
  21. 21The endosymbiotic theory of evolution is based on a phenomenon in which one organism engulfs another but does not digest it. Both organisms 2012Cell Organelles

Frequently Asked Questions

1.How many questions are available for Cell - The Unit of Life?

This chapter includes 21 questions compiled from NEST (NISER) papers spanning 2012 to 2026.

2.Are these questions only from NEST (NISER), or from other exams too?

These are NEST (NISER) questions specifically for the Cell - The Unit of Life chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Cell - The Unit of Life an important chapter for NEST (NISER) Biology?

Cell - The Unit of Life has appeared in 14 of the 16 years of NEST (NISER) papers covered here, with 21 questions across 17 papers - about one per paper it appears in.

4.What is the difficulty level of Cell - The Unit of Life questions in NEST (NISER)?

Of the 21 questions analysed for this chapter, 14% are easy, 86% moderate and 0% tough. 2024 had the most, with 3 questions.

5.Which topics in Cell - The Unit of Life should I focus on?

These topics have carried the most weightage in Cell - The Unit of Life:

  • Cell Organelles - 18 questions (86%)
  • Cell Membranes - 3 questions (14%)
6.Is Cell - The Unit of Life's weightage in NEST (NISER) going up or down?

Across all 17 papers analysed, Cell - The Unit of Life has averaged about 1.2 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.