Biology MCQs for 9th Class (Federal Board)

This page has over 1,600 multiple-choice questions for Biology (9th Class (Federal Board)), arranged in 8 chapters and 16 topics. The chapters include Introduction to Biology, Evolution, Biodiversity and Classification, Biomolecules, The Cell and Tissues, Organs, Systems and Homeostasis. Every question has four options, an instant answer and, where available, a short explanation.

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Chapters and topics

  • Introduction to Biology 2 topics · 207 MCQs
  • Evolution, Biodiversity and Classification 2 topics · 217 MCQs
  • Biomolecules 2 topics · 207 MCQs
  • The Cell 2 topics · 201 MCQs
  • Tissues, Organs, Systems and Homeostasis 2 topics · 222 MCQs
  • Bioenergetics 2 topics · 200 MCQs
  • Plant Physiology 3 topics · 306 MCQs
  • Practical Biology 1 topic · 109 MCQs

Sample Biology MCQs

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Q1. In an experiment on the effect of exercise on heart rate, the dependent variable is:

  1. age and time of rest before measuring
  2. amount/intensity of exercise
  3. heart rate (beats per minute)
  4. the colour of the apparatus
Show the answer

Answer: C. heart rate (beats per minute)

The dependent variable is what is measured: heart rate (beats per minute).

Q2. The scientific name of the pigeon is:

  1. Panthera leo
  2. Apis mellifera
  3. Rana tigrina
  4. Columba livia
Show the answer

Answer: D. Columba livia

The correct answer is “Columba livia”. Pigeon: Columba livia.

Q3. The complementary DNA strand for the sequence GATGGA is:

  1. TCCATC
  2. GATGGA
  3. CTACCT
  4. CUACCU
Show the answer

Answer: C. CTACCT

A pairs with T and G pairs with C: GATGGA → CTACCT.

Q4. The powerhouse of the cell is the:

  1. Charles Darwin
  2. ribosome
  3. mitochondrion
  4. eukaryotic cells
Show the answer

Answer: C. mitochondrion

The correct answer is “mitochondrion”. Mitochondrion.

Q5. The pancreas (hormones) belongs to the:

  1. endocrine system
  2. reproductive system
  3. digestive system
  4. nervous system
Show the answer

Answer: A. endocrine system

The pancreas (hormones) is part of the endocrine system.

Q6. The light-dependent reactions take place in the:

  1. light energy to chemical energy
  2. carbon dioxide
  3. carbon dioxide + water → glucose + oxygen (in light, with chlorophyll)
  4. thylakoids (grana) of the chloroplast
Show the answer

Answer: D. thylakoids (grana) of the chloroplast

The correct answer is “thylakoids (grana) of the chloroplast”. Thylakoids (grana) of the chloroplast.

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