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Cell: Structure and Function – GK Quiz with Answers – Level 1

Basics of cell biology for GK: Hooke's cork cells, the cell theory, the plasma membrane and osmosis, mitochondria, lysosomes, plastids and how plant and animal cells differ.

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Choose Normal practice or a Simulated test.

Questions, answer key and solutions.

Questions
50
Duration
25 min
Marks
50

Negative marking

Attempts
100
Access
Free

Normal practice, or a Simulated test

Both use the same questions. Normal practice is untimed and needs no account: choose an option and the answer and solution appear at once. The Simulated test is the real computer-based format, with one 25-minute clock, a question palette and full screen, and your score, the key and the solutions arrive when you submit.

How the two modes differ
No account needed

Normal

Untimed

Every question on one page, loading as you scroll. Choose an option and see straight away whether it was right.

  • No timer. Nothing to start and nothing to submit. Stop whenever you like.
  • Answered as you choose. Tap an option and it is marked at once, with the correct answer shown.
  • Solutions in place. The explanation, and the video where one has been added, sit under the question.
  • Open to guests. Normal practice needs no sign-in.
Real exam conditions

Simulated

Timed CBT

The computer-based test format: one clock, a question palette, and a score the moment you submit.

  • A clock that does not pause. 25 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
  • Question palette. Answered, not answered and marked for review, section by section, as the real interface has it.
  • Full screen, proctored. The test takes over the screen; leaving it three times submits the paper.
  • Answers hidden until you submit. The key, the explanations and your score all arrive together at the end.

About this test

Cell Structure and Function GK Practice Quiz: Organelles and Cell Theory

This is Level 1 of the Cell: Structure and Function GK series, a basics-level biology set on how cells were discovered, what the cell theory says and what each organelle does. Aptitude360 gives a written explanation for every question, so first-time learners can check facts on Hooke, Brown, mitochondria and plastids as they go.

Basics covered in this cell biology set

  • Discovery of cells: Robert Hooke's cork slice, Leeuwenhoek's free-living cells in pond water and Robert Brown's nucleus
  • Cell theory of Schleiden and Schwann, and Virchow's idea that all cells arise from pre-existing cells
  • The plasma membrane, its lipid and protein make-up, selective permeability and osmosis
  • Organelles and their roles: mitochondria, ribosomes, Golgi apparatus, lysosomes, nucleus and chromosomes
  • Plant cell features: cellulose cell wall, chloroplasts, leucoplasts and the vacuole that keeps the cell turgid
  • Prokaryotic cells such as bacteria compared with eukaryotic plant and animal cells

Key ideas to revise on cell structure

  • Popular nicknames: mitochondria as the powerhouse and lysosomes as the suicide bags of the cell
  • Who coined which term: Hooke named the cell and Purkinje coined protoplasm
  • Mitochondria carry their own DNA and ribosomes
  • Parts found only in plant cells versus parts shared with animal cells

How to revise cell biology basics

  • Keep a timeline of scientists with their discoveries and years, since questions ask for both.
  • Learn each organelle with one function and, where it has one, its nickname.
  • Draw a plant cell and an animal cell side by side and label the differences.

Who this Level 1 cell quiz is for

Start here if you are new to cell biology for general awareness papers, then move on to the higher levels of this series for statement and match-type questions.

FAQs about Cell: Structure and Function – GK Quiz with Answers – Level 1

What is the structure and function of a cell?
A cell is the basic structural and functional unit of life. It is bounded by a plasma membrane, holds cytoplasm with organelles, and carries genetic material as DNA that controls its activities.
Which organelle is called the powerhouse of the cell?
Mitochondria are called the powerhouse of the cell because they release energy in the form of ATP. They also have their own DNA and ribosomes.
What is the difference between plant cell and animal cell?
Plant cells have a cellulose cell wall, plastids such as chloroplasts and a large central vacuole. Animal cells lack a cell wall and plastids, and their vacuoles are small or absent.
Who discovered the cell?
Robert Hooke first saw and named cells in a thin slice of cork. Leeuwenhoek later became the first to see free-living cells, in pond water.

Test structure

How the paper is split, and how long each part runs. A section you have finished cannot be returned to.

SectionQuestionsTime
Cell: Structure and Function GK Level 15025 min

Marking & rules

Total marks
50 across 50 questions.
Negative marking
A wrong answer costs marks. Leaving a question unanswered costs nothing.
Attempts
100 in total. An attempt is spent the moment you begin one.

What you get when you submit

The analysis is ready the moment you submit the paper.

Score and accuracy

Marks, percentage, right, wrong and skipped, and the time you took.

Section by section

The same figures for each section, so a weak one cannot hide in an average.

The full answer key

Every question with your answer, the right one, the working, and the video where there is one.

Where you stand

Your score against the spread of everyone else who has sat this test.

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