Is Lexis an AI tutor app available in India?

Yes. Lexis is built by CAPGENX in Hyderabad for learners in India. It works in modern web browsers and supports curricula such as CBSE, ICSE and State Boards, plus entrance exams like JEE, NEET and CUET.

Is there a free AI tutor plan on Lexis?

Yes. The Free plan gives you 14 days and 100 AI credits to try every core tool, including the AI tutor, Study Desk and exam-prep plans. No card is needed.

Can I use the Lexis AI tutor late at night?

Yes. The AI tutor is available 24/7. You can type a doubt, speak it, or upload a photo of a textbook problem at any time.

Lexis: AI Learning Platformmade for everyone

Turn any chapter, lecture or set of notes into lessons, flashcards and practice, with an AI tutor beside you.

Any topic, taught and simulated

Study Desk

Photosynthesis in Higher Plants

Listen1/ 18100%

PLANT PHYSIOLOGYPhotosynthesis in Higher PlantsUnit 13 · Class 11 BiologyPlant Physiology · Lecture 6 of 9Class 11 Biology · Unit 131

OVERVIEWWhat this unit coversThe experiments that established what plants actually doWhere photosynthesis happens: the chloroplastPigments, and why leaves are greenThe light reaction: photosystems, the Z-scheme, chemiosmosisThe biosynthetic phase: the Calvin cycleC₄ plants, photorespiration and limiting factorsClass 11 Biology · Unit 132

WHY IT MATTERSPhotosynthesis is the only large-scale process that converts light into chemical energy.Every heterotroph — including us — lives on carbon that a plant fixed and oxygen that a plant released. It is also the source of all fossil fuel, which is photosynthesis run millions of years ago and buried.Class 11 Biology · Unit 133

Chat

What shall we explore?

Understand the key ideasMake a visualConnect the concepts

Chatting in: New Chat

Ask a question, draw a picture, connect ideas…

From your exam to exam-ready

Tell the coach your exam
Pick it or type it. A few questions later, your coach knows your level and your timeline.
Get your syllabus, mapped
Every chapter and topic your exam covers, ready to edit before you start.
Practise the way it is marked
Exam-style questions, marked against the key, with your coach beside you.

One place for every part of learning

Study Studio: A lesson from one sentence — **Study Studio**A lesson from one sentence

Study Desk: Ask your source anything — **Study Desk**Ask your source anything

Study Planner: Know what to do today — **Study Planner**Know what to do today

Knowledge Hub: Read books made for your class — **Knowledge Hub**Read books made for your class

Study Desk: Quiz yourself — **Study Desk**Quiz yourself

Study Planner: Your whole plan on a calendar — **Study Planner**Your whole plan on a calendar

Knowledge Hub: Write right on the page — **Knowledge Hub**Write right on the page

Study Desk: See how ideas connect — **Study Desk**See how ideas connect

Study Planner: Modules in the right order — **Study Planner**Modules in the right order

Knowledge Hub: Picture any passage — **Knowledge Hub**Picture any passage

Study Desk: Highlight, then act on it — **Study Desk**Highlight, then act on it

Knowledge Hub: Keep your annotated copy — **Knowledge Hub**Keep your annotated copy

Study Planner: Turn any day into a lesson — **Study Planner**Turn any day into a lesson

Study Studio: Taught by an AI tutor — **Study Studio**Taught by an AI tutor

Study Desk: Flashcards in one tap — **Study Desk**Flashcards in one tap

Knowledge Hub: A new book on any topic — **Knowledge Hub**A new book on any topic

Study Planner: A plan that starts from you — **Study Planner**A plan that starts from you

Study Desk: Key points, ready to revise — **Study Desk**Key points, ready to revise

Knowledge Hub: One shelf for everything — **Knowledge Hub**One shelf for everything

Study Planner: See your progress — **Study Planner**See your progress

Learners, in their words

The AI Doubt Assistant solves my Maths and Science questions instantly, even at 11 PM when nobody else is available.

Shreyas IyerClass 10 Student

The AI revision engine keeps my preparation structured and calm. It highlights only the weak areas before mock tests.

Sneha AgarwalCA Foundation Candidate

I use Lexis on a daily basis now. It's streamlined my study routines and completely transformed how I retain complex chapters.

Ananya DeshmukhNEET Aspirant

I finally feel involved in his learning without sitting next to him every night. The progress tracking is crystal clear.

Ramesh NairParent

The adaptive study planner adjusts seamlessly when my school test dates move. I never have to stress about what to revise today.

Rohan MehtaClass 12 CBSE

It doesn't just hand out answers—it guides my daughter step-by-step through the working until she genuinely masters the logic.

Dr. Priya KulkarniParent & Educator

The details
that matter.

Everything a learner, parent or institution needs before starting.

01Who is Lexis for?−

School students from Class 6 to 12, college students across UG and PG disciplines, and professionals building career skills.

02How does the AI tutor actually teach?+

Choose a hyper-realistic tutor or 3D avatar for live explanations, worked examples, diagrams and step-by-step solutions.

03Can I bring my own material?+

Yes. Upload a PDF, DOCX or presentation and turn it into an interactive lesson, summary, flashcards and adaptive quizzes.

04Which languages are supported?+

19 languages with prompt-based auto detection, including English, Telugu, Hindi, Tamil, French, Arabic, Mandarin, German and Japanese.

05Is student data safe?+

The product is designed around FERPA and COPPA compliance, 256-bit SSL encryption and role-based access.

See all questions

Lexis: AI Learning Platformmade for everyone

Any topic, taught and simulated

Study Desk

From your exam to exam-ready

Tell the coach your exam

Get your syllabus, mapped

Practise the way it is marked

One place for every part of learning

Learners, in their words

The detailsthat matter.

Learning should movewith you.

The details
that matter.