Start learning →

DSSSB TGT Cell And Its Organisation — practice questions

Explore 11 free Cell And Its Organisation questions in DSSSB TGT Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Cell And Its Organisation with Quill →

Cell And Its Organisation questions and exercises with answers

Showing questions 1–11 of 11.

The basic structural and functional unit of all living organisms is the:Read the answer and worked solution →What instrument allowed scientists to first observe individual cells?Read the answer and worked solution →The thin boundary that surrounds every cell and controls what enters and leaves is the:Read the answer and worked solution →The ability of a microscope to distinguish two very close objects as separate is called its:Read the answer and worked solution →The control centre of the cell, containing genetic material (DNA), is the:Read the answer and worked solution →The organelle known as the 'powerhouse of the cell' (because it produces ATP energy) is the:Read the answer and worked solution →Which structure is FOUND IN PLANT CELLS but NOT in animal cells?Read the answer and worked solution →The semifluid matrix inside a cell where many organelles are suspended is called the:Read the answer and worked solution →Ribosomes are the sites of:Read the answer and worked solution →The structure that controls what enters and leaves the cell (selectively permeable) is the:Read the answer and worked solution →In a leaf cell, the GREEN COLOUR comes from organelles called:Read the answer and worked solution →

Worked practice questions

The basic structural and functional unit of all living organisms is the:

  1. Tissue
  2. Molecule
  3. Atom
  4. Cell
Show answer and solution

Correct answer: D. Cell

All living organisms — single-celled (bacteria, amoeba) and multicellular (plants, animals) — are made of cells. Cells perform all life functions (energy use, reproduction, response to environment). **The cell theory says:** (1) all living things are made of cells (2) cells come from pre-existing cells (3) the cell is the basic unit of structure and function.

Open this question →

What instrument allowed scientists to first observe individual cells?

  1. X-ray machine
  2. Microscope
  3. Stethoscope
  4. Telescope
Show answer and solution

Correct answer: B. Microscope

The microscope — first the light microscope (using visible light + lenses), and later the electron microscope (using electron beams) — revealed the cellular structure of life. Without microscopes, cells (typically 1–100 μm) are far too small to see. Light microscopes typically reach 1000× magnification electron microscopes go to 1,000,000×.

Open this question →

The thin boundary that surrounds every cell and controls what enters and leaves is the:

  1. Cytoplasm
  2. Cell wall
  3. Cell membrane
  4. Nucleus
Show answer and solution

Correct answer: C. Cell membrane

The cell membrane (plasma membrane) is the universal feature of all cells — present in both plant and animal cells. It controls the selective entry and exit of substances. Plant cells also have a rigid CELL WALL outside the membrane, but animal cells don't.

Open this question →

How to practise

  1. Choose a Cell And Its Organisation question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Life ProcessesScienceControl and CoordinationHeredityCellHeredity and EvolutionC9organellesTissues