Skip to main content
Super TutorResources
Chapter 6 of 16
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Important Questions

Photosynthesis

ICSE · Class 10 · Biology

Most important questions from Photosynthesis for ICSE Class 10 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.

44 questions22 flashcards5 concepts

Interactive on Super Tutor

Studying Photosynthesis? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.

Try Super Tutor — Free

1,000+ Class 10 students started this chapter today

A labeled diagram of a dicot stomatal apparatus, showing the bean-shaped guard cells, the stomatal pore, and the surrounding subsidiary cells and epidermal cells.
Super Tutor

This is just one of 19+ visuals inside Super Tutor's Photosynthesis chapter

Explore the full set
44 Questions·
multiple choicemultiple correct

Sample Questions

1multiple correct

Which raw materials are needed for photosynthesis?

Show answer

Carbon dioxide, Water, Sunlight

The raw materials for photosynthesis are carbon dioxide (from air), water (from soil), and sunlight (energy source). Oxygen and glucose are products, not raw materials.

2multiple choice

What causes stomata to open during the day?

Show answer

Guard cells become turgid

During day, photosynthesis in guard cells produces glucose, making cell sap hypertonic. Water enters by endosmosis, making guard cells turgid and causing stomata to open.

3multiple choice

Which pigment is most important for photosynthesis?

Show answer

Chlorophyll

Chlorophyll is the most important photosynthetic pigment. It traps solar energy and has a magnesium-containing head. Carotene and xanthophyll are accessory pigments.

4multiple choice

During which process is water split into hydrogen and oxygen?

Show answer

Photolysis

Photolysis is the process of breaking down water molecules into H+ and OH- ions using light energy. This occurs during the light reaction in thylakoids.

+40 more questions available

Practice All

Frequently Asked Questions

What are the important topics in Photosynthesis for ICSE Class 10 Biology?
Key topics in Photosynthesis include Mechanism of Photosynthesis: Light and Dark Reactions, Mechanism of Photosynthesis: Light and Dark Reactions, Light Reaction vs Dark Reaction — What Happens Where. These are the concepts ICSE Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Photosynthesis — ICSE Class 10 Biology?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Photosynthesis?
There are 44 practice questions available for Photosynthesis. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Photosynthesis

All 16 chapters — ICSE Class 10 Biology Important Questions

For serious students

Get the full Photosynthesis chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 10 Biology.

Try Super Tutor Free
Try the full chapter — Free