Photosynthesis is one of the most important topics for the NEET Biology exam. It plays a significant role in plant physiology and is frequently tested in the NEET exam. To help aspirants prepare efficiently, we have compiled a comprehensive set of multiple-choice questions (MCQs) on Photosynthesis along with detailed explanations.
For more in-depth NEET preparation, visit NEET World—a trusted platform for medical entrance exam preparation. Photosynthesis MCQ for NEET
Photosynthesis MCQ for NEET (With Answers and Explanations)
Basic MCQs on Photosynthesis
Q1. What is the primary function of photosynthesis?
A) Production of oxygen
B) Conversion of light energy into chemical energy
C) Absorption of carbon dioxide
D) Breakdown of glucose
Answer: B) Conversion of light energy into chemical energy
Explanation: The main purpose of photosynthesis is to convert sunlight into chemical energy stored in glucose molecules.
Q2. Which organelle is responsible for photosynthesis?
A) Mitochondria
B) Golgi apparatus
C) Chloroplast
D) Ribosome
Answer: C) Chloroplast
Explanation: Chloroplasts contain chlorophyll and other pigments essential for capturing sunlight and conducting photosynthesis.
Q3. Which gas is released as a by-product during photosynthesis?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: A) Oxygen
Explanation: During the light-dependent reaction, water molecules split (photolysis), releasing oxygen gas as a by-product.
Q4. What are the two main stages of photosynthesis?
A) Light Reaction and Dark Reaction
B) Glycolysis and Krebs Cycle
C) Electron Transport Chain and ATP Synthesis
D) Aerobic and Anaerobic Phases
Answer: A) Light Reaction and Dark Reaction
Explanation: Photosynthesis consists of light-dependent reactions (occurring in the thylakoid membrane) and light-independent reactions (Calvin cycle) occurring in the stroma.
Advanced MCQs on Photosynthesis
Q5. Which pigment plays the most crucial role in photosynthesis?
A) Chlorophyll a
B) Chlorophyll b
C) Carotenoids
D) Xanthophylls
Answer: A) Chlorophyll a
Explanation: Chlorophyll a is the primary pigment that absorbs light energy and converts it into chemical energy.
Q6. The oxygen released during photosynthesis comes from:
A) Carbon dioxide
B) Water
C) Glucose
D) ATP
Answer: B) Water
Explanation: During photolysis (light reaction), water molecules split into hydrogen ions, electrons, and oxygen gas as a by-product.
Q7. Which of the following plants use the C4 pathway?
A) Wheat
B) Rice
C) Maize
D) Mango
Answer: C) Maize
Explanation: C4 plants like maize, sugarcane, and sorghum have a specialized Hatch-Slack pathway to minimize photorespiration.
Q8. What is the primary enzyme involved in carbon fixation in C3 plants?
A) PEP Carboxylase
B) RuBisCO
C) ATP Synthase
D) NADP Reductase
Answer: B) RuBisCO
Explanation: Ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCO) is responsible for fixing CO₂ in the Calvin cycle.
MCQs on Light and Dark Reactions
Q9. Where do light-dependent reactions occur?
A) Cytoplasm
B) Stroma
C) Thylakoid membrane
D) Mitochondria
Answer: C) Thylakoid membrane
Explanation: The light reaction occurs in the thylakoid membranes, where light energy is converted into ATP and NADPH.
Q10. What is the final product of the Calvin cycle?
A) ATP
B) NADPH
C) Glucose
D) Oxygen
Answer: C) Glucose
Explanation: The Calvin cycle (light-independent reaction) utilizes ATP and NADPH to produce glucose from carbon dioxide.
Q11. In non-cyclic photophosphorylation, electrons lost by Photosystem II are replaced by:
A) NADPH
B) Water molecules
C) ATP
D) Carbon dioxide
Answer: B) Water molecules
Explanation: Water undergoes photolysis, releasing electrons that replenish those lost by Photosystem II.
Q12. What is the role of NADP+ in photosynthesis?
A) Electron donor
B) Electron acceptor
C) ATP producer
D) Carbon dioxide carrier
Answer: B) Electron acceptor
Explanation: NADP+ accepts electrons and hydrogen ions to form NADPH, which is later used in the Calvin cycle.
MCQs on Photorespiration and C4 Pathway
Q13. Why is photorespiration considered a wasteful process?
A) It consumes ATP without producing glucose
B) It increases glucose synthesis
C) It releases excess energy
D) It enhances the light reaction
Answer: A) It consumes ATP without producing glucose
Explanation: Photorespiration occurs in C3 plants when RuBisCO binds to O₂ instead of CO₂, leading to energy loss without glucose formation.
Q14. The first stable compound in the C4 pathway is:
A) 3-Phosphoglycerate (3-PGA)
B) Phosphoenolpyruvate (PEP)
C) Oxaloacetic acid (OAA)
D) Ribulose-1,5-bisphosphate (RuBP)
Answer: C) Oxaloacetic acid (OAA)
Explanation: In C4 plants, CO₂ initially reacts with PEP to form Oxaloacetic acid (OAA), which then enters the Calvin cycle.
MCQs on Factors Affecting Photosynthesis
Q15. Which factor does NOT directly affect photosynthesis?
A) Light intensity
B) Temperature
C) Soil type
D) Carbon dioxide concentration
Answer: C) Soil type
Explanation: Photosynthesis depends on light, CO₂ levels, water, and temperature, but soil type does not directly impact the process.
Q16. At what temperature range does photosynthesis occur optimally in most plants?
A) 0-10°C
B) 25-35°C
C) 45-55°C
D) 60-70°C
Answer: B) 25-35°C
Explanation: The optimum temperature for photosynthesis in most plants is 25-35°C.
What Does NEET World Offer for NEET Coaching?
NEET World provides a highly effective approach to NEET preparation. Our top-tier online coaching for NEET includes:
Interactive Live Sessions: Join engaging live classes led by expert educators who deliver detailed explanations and resolve all your queries on the spot.
Extensive Study Resources: Access meticulously organized study materials, including chapter-wise notes, practice questions, and past NEET exam papers.
Customized Learning Experience: We recognize that every student learns differently. Our study plans suit each learner’s unique pace and requirements.
Mock Exams and Practice Quizzes: Take regular mock tests and quizzes to evaluate your progress and get a feel of the actual NEET exam atmosphere.
Dedicated Doubt-Clearing Sessions: Strengthen your understanding with focused doubt-solving sessions where no question goes unanswered.
Access the Best Study Material for NEET Aspirants
NEET World provides top-notch study resources for NEET preparation, including:
- Chapter-Wise Notes: Simplified and comprehensive notes covering all key topics aligned with the NEET syllabus.
- Clear Solutions: Step-by-step and easy-to-follow solutions to questions, building a solid conceptual foundation.
- Practice Problems: A vast collection of practice questions with varying difficulty levels to ensure thorough preparation.
- Past Papers: Gain insights into the exam pattern with solved NEET papers from previous years.
Why Choose NEET World’s NEET Courses?
NEET World’s coaching classes are unique because of their:
- Learner-Focused Methodology: Courses designed to cater to each student’s unique needs and learning preferences.
- Innovative Technology: Utilization of cutting-edge tools for an immersive and engaging learning experience.
- Proven Success: A history of consistently producing top-ranking NEET achievers.
Choose Your Path to Success with NEET World’s Tailored Batches
What Do You Get From NEET World NEET Coaching?
At NEET World, we provide a structured and efficient approach to NEET preparation, ensuring every student achieves their full potential. Our online and offline NEET coaching programs are designed to give students the best resources, support, and guidance for excelling in their medical entrance exams. Here’s what makes NEET World the ultimate destination for NEET aspirants:
- Live Interactive Classes: Engage in dynamic live sessions with experienced faculty who provide in-depth explanations, real-time doubt resolution, and comprehensive guidance.
- Comprehensive Study Material: Access topic-wise notes, practice papers, and solved previous years’ question papers, meticulously designed to match the NEET syllabus.
- Personalized Learning: Tailored study plans cater to the individual needs and learning pace of every student, ensuring effective preparation.
- Mock Tests and Quizzes: Regular mock tests and quizzes simulate the real NEET exam, helping students evaluate and improve their performance.
Doubt-Solving Sessions: Dedicated sessions focus on resolving all queries, strengthening conceptual clarity, and boosting confidence.
NEET World’s Online Pro Courses for NEET 2025
NEET World offers diverse online coaching options for NEET, specially designed for Class 11 and 12 students. Our Pro Courses are available in multiple languages, ensuring accessibility for all learners. With flexible pricing and customized plans, these courses provide unmatched value. Below are the Pro Courses offered at NEET World:
- 2-Year NEET Course (2024-26): Designed for Class 11 students, this course ensures comprehensive preparation over two years.
- 1-Year NEET Course (2024-25): Specifically for Class 12 students, this course focuses on an intensive, fast-paced curriculum.
Features of NEET World’s Pro Courses:
- LIVE classes conducted by expert educators.
- Real-time doubt-solving during classes.
- In-class quizzes and leaderboards for engagement.
- Extensive discussions on previous year’s NEET questions.
NEET World’s Prime Courses for NEET 2025
Take your NEET preparation to the next level with NEET World’s Prime Courses. Designed for Class 11, 12, and dropper students, these programs include premium resources, advanced coaching techniques, and personalized mentorship. The Prime courses are offered in English and regional languages, making them accessible to a wide audience.
Prime Course Options:
- Excel Prime Course: For NEET 2025 aspirants, available in English with a structured curriculum.
- Complete Prime Package: Includes batch classes, comprehensive test series, and exclusive study materials.
Master Series for Droppers: A full-year course that integrates mentorship and advanced learning resources for repeater students.
NEET World’s NEET Crash Course for Repeaters
Our exclusive crash course is tailored for students who have taken a year off to fully dedicate themselves to NEET preparation. This program includes live lectures, interactive doubt-clearing sessions, and intensive test preparation. With experienced faculty and structured schedules, this course ensures that dropper students maximize their potential.
NEET World’s Foundation Classes
Start your NEET journey early with NEET World’s Foundation Classes. Specially curated for Classes 8, 9, and 10, these courses focus on building a strong conceptual foundation in Physics, Chemistry, and Biology. Our foundation programs prepare students to tackle the rigorous NEET syllabus with confidence.
Foundation Course Options:
- Full syllabus coaching for Grades 8, 9, and 10.
- Expert mentorship from experienced teachers.
- Interactive classes and topic-wise assessments.
NEET World’s NEET Test Series
Prepare effectively with NEET World’s NEET Test Series, which is designed to provide comprehensive practice and performance evaluation. Covering Physics, Chemistry, and Biology, this year-long test series includes:
- Full-length mock exams to simulate the NEET experience.
- Chapter-wise and topic-wise tests for targeted practice.
- Detailed performance analysis to identify strengths and weaknesses.
Why Choose NEET World for NEET Coaching?
- Experienced Faculty: Learn from industry experts with years of experience in NEET coaching.
- Affordable Pricing: Quality education at reasonable prices, ensuring accessibility for all.
- Flexible Learning Modes: Choose between online, offline, or hybrid learning options based on your convenience.
Proven Success: With a consistent record of top-performing students, NEET World stands as a trusted name in NEET preparation.
NEET Exam Dates 2025
The NEET 2025 exam is tentatively scheduled for May 4, 2025. NEET World ensures that students are fully prepared with timely guidance and structured study plans. The registration process is expected to open in January 2025, giving students ample time to gear up for the big day.
Admission Details
Eligibility Criteria:
- Students of Class X, XI, and XII or equivalent boards.
- Drop-year students are aspiring to clear NEET UG in the upcoming attempt.
Application Process:
- Visit our website or contact us directly.
- Fill out the admission form with the required details.
- Submit academic records for verification.
- Pay the registration fee to secure your spot.
Scholarships: At NEET World, we believe in rewarding talent. Eligible students can apply for scholarships based on merit or financial need. Visit our scholarship section for details.
Our Unique Features
- Advanced Learning Platform: Access interactive online classes, recorded sessions, and a user-friendly mobile app for uninterrupted learning.
- Doubt Resolution: Dedicated doubt-clearing sessions ensure no query goes unresolved.
- Mock Exams: Simulate the real NEET UG environment with our comprehensive test series.
- Parental Engagement: Regular parent-teacher meetings keep parents updated on their child’s progress.
24/7 Support: Our counselors and mentors are available round the clock to guide you.
Detailed Course Structure
- Foundation Building:
- Focus: Strengthening concepts in Physics, Chemistry, and Biology.
- Outcome: In-depth understanding of topics covered in NEET UG.
- Advanced Preparation:
- Focus: Problem-solving techniques, speed, and accuracy.
- Outcome: Confidence in tackling complex NEET UG questions.
- Exam Strategy:
- Focus: Time management, exam temperament, and mock tests.
- Outcome: Enhanced performance in NEET UG.
Testimonials from Our Achievers
- “Joining NEET World was the best decision of my life. The faculty and resources are unparalleled!” – Dr. Priya Singh, NEET Topper.
- “The doubt-clearing sessions and personalized mentoring helped me secure my medical seat. Thanks, NEET World!” – Aman Verma.
Flexible Learning Options at NEET World: Online and Offline Excellence
At NEET World, we understand that every student has unique learning preferences. That’s why we offer both online and offline coaching options, ensuring that you can prepare for NEET UG in the way that suits you best. Our online classes bring the classroom experience to your home, complete with live lectures, recorded sessions, and interactive tools. Meanwhile, our offline classes provide a traditional learning environment with face-to-face interaction, fostering a strong sense of community and collaboration among students.
Comprehensive Support Through Online Classes
Our online programs are designed to deliver unmatched convenience without compromising on quality. With live interactive sessions, students can clear their doubts in real time, and recorded lectures allow for flexible learning. Whether you’re revising a difficult topic or catching up on missed lessons, our online platform is your perfect study companion. The user-friendly mobile app ensures seamless access to study materials, mock tests, and performance analytics. Join our online coaching today and experience the future of learning!
The Benefits of Offline Coaching at NEET World
For those who thrive in a classroom setting, our offline batches offer a structured and distraction-free environment. Students can engage directly with faculty members, participate in collaborative study sessions, and build peer networks. Our offline centers are equipped with state-of-the-art facilities, providing a focused space for preparation. Weekly in-person tests and discussions create a competitive yet supportive atmosphere that drives academic growth.
Hybrid Learning for the Best of Both Worlds
Can’t decide between online and offline classes? NEET World’s hybrid learning model gives you the flexibility to switch between the two. Attend offline sessions when you need personalized attention and use online resources for revising at your convenience. This blended approach ensures that no matter where you are, your NEET preparation is uninterrupted and effective.
Testimonials from Online and Offline Students
- “NEET World’s online coaching made it possible for me to study from home without missing out on quality education.” – Rohan Sharma, Online Batch.
- “The offline classes at NEET World were incredible. The direct interaction with teachers kept me motivated throughout my preparation journey.” – Ananya Gupta, Offline Batch.
Why NEET World Stands Out in Online and Offline Education
- Customized Learning: Choose the mode that works best for you.
- Expert Faculty: Get access to the same experienced teachers, whether online or offline.
- Consistent Results: Our students achieve top ranks in NEET UG regardless of mode.
Admissions Now Open for Online and Offline Batches
Don’t wait to secure your future. Join NEET World’s online or offline programs today and start your journey toward a successful medical career. Visit our website or contact us for more details!
Conclusion
Photosynthesis is a critical chapter in NEET Biology, and mastering MCQs can significantly enhance your score. Understanding the light reaction, Calvin cycle, photorespiration, and C4 pathway is essential for tackling related questions.
For more study materials, mock tests, and previous year questions, visit NEET World.
FAQs on Photosynthesis MCQ for NEET
Q1. How many ATP molecules are required to produce one glucose molecule?
A: 18 ATP
Q2. Which pigment absorbs red and blue light most efficiently?
A: Chlorophyll a
Q3. What is the function of the thylakoid membrane?
A: It houses the photosynthetic pigment complexes (PSI and PSII) for light absorption.
Q4. Which plants use the CAM pathway?
A: Desert plants like cacti and pineapples.
Q5. Why is NADPH important in the Calvin cycle?
A: It provides reducing power for carbon fixation.
