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Grade 12 Biology entrance exam, 2007 E.C. (2015)

Real questions from the Grade 12 university entrance exam in Biology, as students sat it in 2007 E.C. Every question comes with the correct answer and a worked explanation.

  • Natural science stream

    Who sits it

  • 2007 E.C. (2015)

    Exam year

  • 89 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 units of measurement is more convenient to express the size of cellular organelles?

  1. A.Meter
  2. B.Centimeter
  3. C.Milliliter
  4. D.Micrometer
Show the answer and explanation

Answer: D Micrometer

Why

Cellular organelles typically range in size from under a micrometer to several micrometers (µm), making the micrometer the most appropriate unit among the choices.

Question 2

Which of the following step of the scientific method comes before all the rest?

  1. A.Hypothesis
  2. B.Experiment
  3. C.Conclusion
  4. D.Reporting the result
Show the answer and explanation

Answer: A Hypothesis

Why

In the standard scientific method, formulating a testable hypothesis precedes conducting experiments, drawing conclusions, and communicating or reporting results.

Question 3

What do we call a scientists who specializes in studying insects?

  1. A.An ecologist
  2. B.A paleontologist
  3. C.An entomologist
  4. D.a microbiologist
Show the answer and explanation

Answer: C An entomologist

Why

An entomologist is a biologist who specializes in the study of insects, whereas paleontologists study fossils and ecologists study organism-environment interactions.

Question 4

To which one of the following organic molecules do enzymes belong?

  1. A.Carbohydrate
  2. B.Amino acids
  3. C.Proteins
  4. D.Lipids
Show the answer and explanation

Answer: C Proteins

Why

Enzymes are biological catalysts that are globular proteins composed of polypeptide chains.

Question 5

Which of the following is a coenzyme

  1. A.NAD
  2. B.Carbohydrate
  3. C.Water molecule
  4. D.Proteins
Show the answer and explanation

Answer: A NAD

Why

NAD (nicotinamide adenine dinucleotide) is a non-protein organic cofactor, specifically a coenzyme, that transfers electrons in metabolic pathways.

Question 6

Which of the following behavioral biologists is known for his study about imprinting behavior in animals?

  1. A.W. Kohler
  2. B.B.F.Skinner
  3. C.Ivan pavlov
  4. D.Konrad Lorenz
Show the answer and explanation

Answer: D Konrad Lorenz

Why

Konrad Lorenz is renowned for his ethological studies demonstrating imprinting behavior in newly hatched greylag geese.

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Are these the real 2007 E.C. Biology entrance exam questions?

Yes. They come from the national university entrance exam in Biology that students sat in 2007 E.C. (2015). Our set holds 89 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 2007 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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