Answers cited back to your own documents.

Upload what you're studying. Ask anything. Every answer points to the page it came from.

An open economics textbook with one sentence about total cost highlighted

What is total cost?

Total cost is the sum of total fixed cost and total variable cost, written TC = TFC + TVC.
econ-textbook.pdf, p.132

From your file to a cited answer

  1. Upload

    PDFs, Word documents, and text files.

  2. Ask

    A question in plain language.

  3. Check the source

    The answer links to the exact passage.

Turn dense reading into practice.

Flashcards, quizzes, and summaries built from your own material, each one tied to the page it came from.

Flashcardbiology.pdf, p.42

What does the electron transport chain produce?

1 of 24Flip card
Quizbiology.pdf, p.56

Which best describes oxidative phosphorylation?

  • ATP made in the cytosol by glycolysis
  • ATP made using a proton gradient across the inner membrane
  • Glucose made from carbon dioxide
Summarypp.30 to 31
  • Mitochondria make most of a cell's ATP.
  • Electrons from NADH move along the transport chain.
  • The proton gradient drives ATP synthase.
  • Oxygen is the final electron acceptor.

Your documents stay yours.

Study from your own sources.

Get started

Free to start. iPhone app on the App Store.