10th class biology MCQs with answers — 20 for Matric practice.

Who it's for: Class 10 (Matric) biology students in Pakistan, ages 15–16, and their teachers.

These are original practice questions on topics from the Class 10 biology syllabus. They are not official board questions or past papers, so check your own board's book for exact wording.

Use them for chapter revision, a weekly class test, or self-practice before the board exam. Every question has one correct answer. All twenty fit in one Quizoma quiz.

The 20 class 10 biology MCQs with answers

Correct answers are marked with a tick. The same questions, with the same answers, are in the CSV file, in the same order.

Gaseous exchange

1. Through which openings does gas exchange take place in a leaf?
   A. Xylem · B. Phloem · C. Root hairs · D. Stomata ✓
2. Which part of the air passage is called the voice box?
   A. Trachea · B. Pharynx · C. Larynx ✓ · D. Bronchus
3. What does the diaphragm do when we breathe in?
   A. It relaxes and becomes dome-shaped · B. It moves up into the chest · C. It does not move · D. It contracts and flattens ✓
4. Which lung disease, linked to smoking, damages the alveoli?
   A. Malaria · B. Emphysema ✓ · C. Goitre · D. Diabetes
5. About what percentage of inhaled air is oxygen?
   A. 21% ✓ · B. 0.04% · C. 78% · D. 50%

Homeostasis

6. What is homeostasis?
   A. Keeping the body's internal conditions constant ✓ · B. Digestion of food · C. Reproduction · D. Growth of the body
7. What is the functional unit of the kidney?
   A. Neuron · B. Alveolus · C. Villus · D. Nephron ✓
8. Which hormone lowers blood glucose?
   A. Thyroxine · B. Adrenaline · C. Insulin ✓ · D. Glucagon
9. What is the loss of water vapour from the leaves of a plant called?
   A. Photosynthesis · B. Respiration · C. Osmosis · D. Transpiration ✓
10. When is dialysis used?
    A. When the heart stops · B. When the lungs fail · C. When the kidneys fail ✓ · D. When a bone breaks

Coordination & control

11. What is the basic unit of the nervous system?
    A. Neuron ✓ · B. Platelet · C. Nephron · D. Alveolus
12. Which part of the brain controls balance and posture?
    A. Cerebrum · B. Medulla oblongata · C. Cerebellum ✓ · D. Thalamus
13. Which gland is called the master gland?
    A. Pituitary ✓ · B. Pancreas · C. Adrenal · D. Thyroid
14. What is a quick, automatic response to a stimulus called?
    A. A voluntary action · B. A reflex action ✓ · C. A habit · D. A hormone
15. Goitre is caused by a lack of what in the diet?
    A. Iron · B. Iodine ✓ · C. Vitamin C · D. Calcium

Inheritance

16. Who is known as the father of genetics?
    A. Charles Darwin · B. Louis Pasteur · C. James Watson · D. Gregor Mendel ✓
17. In pea plants, tall (T) is dominant. What ratio of tall to dwarf plants comes from crossing Tt × Tt?
    A. 3 : 1 ✓ · B. 1 : 1 · C. 4 : 0 · D. 2 : 1
18. What are different forms of the same gene called?
    A. Nucleotides · B. Chromosomes · C. Genotypes · D. Alleles ✓
19. What is the genotype tt called?
    A. A mutation · B. Homozygous recessive ✓ · C. Homozygous dominant · D. Heterozygous
20. Which sex chromosomes does a human male have?
    A. XO · B. YY · C. XX · D. XY ✓

Some wrong options are the usual exam mistakes. Glucagon in question 8 raises blood sugar; Cerebrum in question 12 handles thinking, not balance; and 1:1 in question 17 is the result of a test cross, not of crossing two hybrids. Quizoma's results show the accuracy of every question, so a teacher sees straight away which chapter needs another lesson.

Students can use the same set to revise on their own: import it, switch on Show Score and Retake, and it becomes a practice test they can take until every answer sticks.

How to use this template

1. Download the file: quizoma-template-class-10-biology-mcqs.csv.
2. Open Quizoma Studio in your browser (or the Android app) and choose Import from file.
3. Pick the .csv. Quizoma shows every question for review before anything is saved, so you can fix a wording, drop a question or add your own.
4. Save, then share the 6-character quiz code or QR with your class. Participants answer at quizoma.com/take in any browser.

Timing and points are set on the quiz when you import, not in the file. If you would rather not import at all, you can type the questions into the online quiz maker directly.

What is in the file

One row per question: the question, then the options, then a final correct column holding the number of the right option. Where more than one option is right, the numbers are joined with a |. The first lines look like this:

question,option1,option2,option3,option4,correct
Through which openings does gas exchange take place in a leaf?,Xylem,Phloem,Root hairs,Stomata,4
What is homeostasis?,Keeping the body's internal conditions constant,Digestion of food,Reproduction,Growth of the body,1

Open it in any spreadsheet to edit, and save it as CSV again before importing — an .xlsx file is not read. The same format is described on the templates page.