Life Processes CBSE Class 10 PYQ Chapter Wise (2016–2026)

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Answer first

Life Processes PYQs (previous year questions) for CBSE Class 10: Life Processes (Science) had 25 questions across the 40 official CBSE Class 10 papers we tagged (2016–2026), and appeared in 7 of them. Asked in 7 of 10 years. The concepts asked in the most papers: Respiration, Circulation, Stomata.

Year-wise question count

Asked in 7 of 10 years.

Most-asked concepts

Sorted by the number of papers a concept appeared in.

How to practise Life Processes PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year’s Life Processes questions from the official PDF against the clock, then check the answer listed below.
3. Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
4. Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.

Questions by year

Each line gives the question number and paper, type, concept, our one-line summary, with a link to the official PDF.

CBSE Class 102026

• Q.1 (Science (31/1/1)) · MCQ · Stomata: Leaf structure mainly responsible for gaseous exchange PDF
• Q.5 (Science (31/1/1)) · MCQ · Nutrition in Humans: Roles of trypsin and lipase in pancreatic juice PDF
• Q.9 (Science (31/1/1)) · Assertion-Reason · Respiration: Assertion-reason on haemoglobin and its gas affinity PDF
• Q.10 (Science (31/1/1)) · Short answer · Respiration: Function and location of the diaphragm PDF

CBSE Class 102025

• Q.8 (Science (31/1/1)) · MCQ · Nutrition in Humans: Conversion affected by less saliva secretion PDF
• Q.12 (Science (31/1/1)) · MCQ · Respiration: Sites of glucose breakdown to pyruvate and lactic acid PDF
• Q.23 (Science (31/1/1)) · Short answer · Circulation: Why blood vessel leaks must be plugged and component that helps PDF
• Q.38 (Science (31/1/1)) · Case-based · Photosynthesis: Case on photosynthesis, its equation and desert plants PDF

CBSE Class 102024

• Q.11 (Science (31/1/1)) · MCQ · Stomata: Conditions under which stomata close PDF
• Q.19 (Science (31/1/1)) · Assertion-Reason · Respiration: Assertion-reason on faster breathing in aquatic organisms PDF
• Q.22 (Science (31/1/1)) · Short answer · Nutrition in Humans: Role of given components of the human digestive system PDF
• Q.29 (Science (31/1/1)) · Short answer · Respiration: Need for respiratory pigment; reasons on breathing structures PDF

CBSE Class 102023

• Q.8 (Science (31/1/1)) · MCQ · Nutrition: Organism that digests food outside its body PDF
• Q.9 (Science (31/1/1)) · MCQ · Nutrition in Humans: Incorrect statement about the small intestine PDF
• Q.19 (Science (31/1/1)) · Assertion-Reason · Circulation: Assertion-reason on blood clotting and its cause PDF
• Q.23 (Science (31/1/1)) · Short answer · Circulation: Type of blood carried by given vessels and its path PDF
• Q.24 (Science (31/1/1)) · Short answer · Excretion: Location, structure and function of nephrons PDF
• Q.29 (Science (31/1/1)) · Short answer · Respiration: Role of ATP; gas exchange and diffusion in plants PDF

CBSE Class 102020

• Q.27 (Science (31/1/1)) · Long answer · Respiration: Breathing rate in aquatic vs land animals; respiratory system diagram PDF

CBSE Class 102019

• Q.4 (Science (31/1/1)) · Short answer · Respiration: Two pathways of glucose oxidation in humans and their products PDF
• Q.9 (Science (31/1/1)) · Short answer · Circulation: Three types of blood vessels and a feature of each PDF
• Q.24 (Science (31/1/1)) · Short answer · Stomata: Labelled diagram of stomata seen in a leaf peel PDF
• Q.25 (Science (31/1/1)) · Short answer · Respiration: Substance in small test tube in CO2-respiration setup and its role PDF

CBSE Class 102018

• Q.18 (Science (31/1)) · Long answer · Circulation: Blood components, oxygenated blood path, valves, artery vs vein PDF
• Q.24 (Science (31/1)) · Short answer · Stomata: Steps to prepare a temporary mount of leaf peel for stomata PDF

Other Science chapters

• Chemical Reactions and Equations PYQs
• Acids, Bases and Salts PYQs
• Metals and Non-metals PYQs
• Carbon and its Compounds PYQs
• Periodic Classification of Elements PYQs
• Control and Coordination PYQs
• How do Organisms Reproduce PYQs
• Heredity and Evolution PYQs
• Light: Reflection and Refraction PYQs
• The Human Eye and the Colourful World PYQs
• Electricity PYQs
• Magnetic Effects of Electric Current PYQs
• Sources of Energy PYQs
• Our Environment PYQs
• Sustainable Management of Natural Resources PYQs

FAQ

How many Life Processes questions come in CBSE Class 10?

In the official papers we tagged: 4 in 2026, 4 in 2025, 4 in 2024, 6 in 2023, 1 in 2020, 4 in 2019 and 2 in 2018. Not asked in the other 3 years. That is 25 questions in all, about 8% of Science.

Which Life Processes topics repeat in CBSE Class 10?

Asked in the most papers: Respiration, Circulation, Stomata. The concept table lists every one with its count.

Are these official CBSE Class 10 questions?

Yes. Every question is from an official CBSE Class 10 paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.