AI Flashcard Maker from PDFs and Notes

Turn your PDFs, lecture slides and notes into question-and-answer flashcards you can review and edit.

PDF to flashcards: try an example

Open the source PDF

Cell membranes and transport

Card 1 of 13

What does it mean for a cell membrane to be selectively permeable?

Reveal answer

Some substances cross the membrane more readily than others; it is not a completely sealed wall.

Source PDF · page 1

These 13 cards were generated by ChatEDU from our original two-page biology handout. This example uses saved output.

View all 13 flashcards
  1. What does it mean for a cell membrane to be selectively permeable?

    Some substances cross the membrane more readily than others; it is not a completely sealed wall.

    Source PDF · page 1
  2. How are phospholipids oriented in a cell membrane bilayer?

    Water-attracting heads face the watery environments, while water-repelling tails face inward.

    Source PDF · page 1
  3. What is diffusion?

    Diffusion is the net movement of particles from higher to lower concentration due to random molecular motion.

    Source PDF · page 1
  4. At diffusion equilibrium, do particles stop moving?

    No. Particles continue to move, but there is no net movement in either direction.

    Source PDF · page 1
  5. What distinguishes simple diffusion from facilitated diffusion?

    Simple diffusion crosses the lipid bilayer directly; facilitated diffusion uses a channel or carrier protein. Both move substances down a gradient without direct cellular energy input.

    Source PDF · pages 1, 2
  6. Does the involvement of a membrane protein mean that transport is active?

    No. A protein can facilitate passive transport; for example, an ion moving down its electrochemical gradient through a channel undergoes facilitated diffusion.

    Source PDF · pages 1, 2
  7. What is osmosis?

    Osmosis is the net movement of water across a selectively permeable membrane.

    Source PDF · page 1
  8. If only water can cross a membrane separating solutions with different concentrations of a nonpenetrating solute, which way does net water movement occur?

    Water moves toward the side with the higher concentration of that solute.

    Source PDF · pages 1, 2
  9. What makes transport active?

    Active transport moves a substance against its concentration or electrochemical gradient and requires energy.

    Source PDF · page 2
  10. What is primary active transport?

    Primary active transport directly couples movement against a gradient to an energy source, such as ATP hydrolysis.

    Source PDF · page 2
  11. How does secondary active transport move a substance against its gradient?

    It uses energy stored in another substance’s gradient: that substance moves down its gradient and drives the other substance uphill.

    Source PDF · page 2
  12. Does a sodium-glucose cotransporter directly hydrolyze ATP?

    No. Sodium moving down its gradient can drive glucose against its gradient; maintaining the sodium gradient depends on energy-consuming processes.

    Source PDF · page 2
  13. What happens to passive transport when ATP production stops?

    Existing gradients do not disappear instantly, so some passive transport may continue while they last; ATP-dependent pumping cannot be sustained.

    Source PDF · page 2

How to make flashcards from a PDF

  1. 01

    Upload your PDF

    Create a free account and upload your course material. You can also use lecture slides or paste your notes.

  2. 02

    Generate and review your cards

    Open the file and choose Flashcards. Check the generated questions and answers against your material, then edit the deck as needed.

  3. 03

    Start studying

    Try recalling the answer before revealing the back of each card. Return to the concepts you need to review.

Make flashcards from your course materials

PDFs

Create flashcards from a PDF handout or reading. PDF page references help you check answers against the original material.

Lecture slides

Upload a PowerPoint file or PDF slide deck to turn the concepts from class into questions you can practice.

Your notes

Paste your notes or upload a text, Markdown or Word file. Generate cards from the definitions and explanations you are studying.

Need topic explanations? Try study guides

Flashcard maker questions

See plans and limits
Is this a free flashcard maker?

Yes. A free ChatEDU account includes 5 flashcard generations per calendar month and 3 uploads. One generation creates a deck, not just one card. The upload allowance resets 30 days after you reach its limit. An account is required to generate your own cards; the example above is available without one.

How do I turn a PDF into flashcards?

Create an account, upload your PDF to a course, then open the file and choose Flashcards. ChatEDU generates a deck from the source. Review the questions and answers, edit any cards that need changes, then start studying.

Can I make flashcards from lecture notes or slides?

Yes. You can use pasted notes, text and Markdown files, PDFs, supported images, PowerPoint slides and Word documents. Wait for the source to be ready, then open it and choose Flashcards. Use one source per generation.

Can I edit the AI-generated flashcards?

Yes. Review the generated deck before studying. You can edit questions and answers, add your own cards and remove cards you do not need.

Will the flashcards cover everything in my file?

Not necessarily. The number and coverage depend on the material and generation settings. AI can miss details or make mistakes. Check the cards against your original material, especially before an exam. PDF cards can include page references to help you review the source.

Create your flashcards

Start free with 5 flashcard generations per month.