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Grade 12 Biology entrance exam, 2011 E.C. (2019)

Real questions from the Grade 12 university entrance exam in Biology, as students sat it in 2011 E.C. Every question comes with the correct answer and a worked explanation.

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  • Natural science stream

    Who sits it

  • 2011 E.C. (2019)

    Exam year

  • 94 questions with answers

    In this set

Try questions from this paper

Answer each question yourself before opening the answer. The explanations point to the exact place in the textbook, so you know which page to reread when you miss one.

Question 1

Which of the following is the Greek word for life?

  1. A.'Logos'
  2. B.'Bios'
  3. C.'Cientia'
  4. D.'Cell'
Show the answer and explanation

Answer: B 'Bios'

Why

The term biology comes from the Greek words 'bios' (meaning life) and 'logos' (meaning study of).

Question 2

What is the shape of an enzyme molecule?

  1. A.Globular
  2. B.Linear
  3. C.Branched
  4. D.Pleated
Show the answer and explanation

Answer: A Globular

Why

Enzymes are tertiary or quaternary proteins that fold into a compact, three-dimensional globular shape.

Question 3

In which of the following groups of organisms are all the members unicellular?

  1. A.Algae
  2. B.Fungi
  3. C.Bacteria
  4. D.Viruses
Show the answer and explanation

Answer: C Bacteria

Why

Bacteria are prokaryotes and are strictly unicellular, whereas some algae and fungi are multicellular, and viruses are non-cellular.

Question 4

Which of the following chromosomal errors creates a cell with an extra chromosome?

  1. A.Non-disjunction
  2. B.Inversion
  3. C.Deletion
  4. D.Duplication
Show the answer and explanation

Answer: A Non-disjunction

Why

Non-disjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division, resulting in daughter cells with an abnormal number of chromosomes (such as an extra chromosome).

Question 5

What is the type of scientific research that is directly concerned with studies of the way of solving problems related to human needs?

  1. A.Basic science
  2. B.Applied science
  3. C.Space science
  4. D.Current science
Show the answer and explanation

Answer: B Applied science

Why

Applied science is the practical application of scientific knowledge to solve real-world problems and address human needs, whereas basic science focuses on expanding knowledge.

Question 6

For which of the following purposes do biologists use centrifuges?

  1. A.Measuring volume
  2. B.Magnifying cell parts
  3. C.Culturing microorganisms
  4. D.Fractionation of cell contents
Show the answer and explanation

Answer: D Fractionation of cell contents

Why

Biologists use a centrifuge for cell fractionation, which separates cellular components based on their size and density using centrifugal force.

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Biology papers from other years

2018 E.C. (2026)2017 E.C. (2025)2016 E.C. (2024)2015 E.C. (2023)2014 E.C. (2022)2013 E.C. (2021)2012 E.C. (2020)2010 E.C. (2018)2009 E.C. (2017)2008 E.C. (2016)2007 E.C. (2015)2006 E.C. (2014)2005 E.C. (2013)1996 E.C. (2004)

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Are these the real 2011 E.C. Biology entrance exam questions?

Yes. They come from the national university entrance exam in Biology that students sat in 2011 E.C. (2019). Our set holds 94 of its questions, each with its answer and an explanation that points back to the textbook.

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Can I download the Biology 2011 E.C. paper as a PDF?

Yes, and it is free. The question paper is one file and the answer key with its worked explanations is another, so you can attempt the paper first. Print them, or keep them on your phone for revision when there is no data.

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