Biology  by Bradford
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IB Biology C1.1 Pub Quiz: Enzymes and metabolism

C1.1 as a pub quiz for your class: review rounds on this subtopic, mixed with pure-fun rounds so it feels like a night out and not another test. Opens at SL; switch to HL in the builder to add the higher level cards.

Print teacher pagesPrint student pagesOpen in the builder to change it

Teacher pages are the quizmaster script and tally sheet. Student pages are the team answer sheet, handout and picture sheet. Both open ready to print, on A4 or US Letter.

What it covers

IB Biology at SL, with HL cards when you switch the level: C1.1 Enzymes and metabolism.

The running order

nine rounds and a handout of riddles. Review rounds are drawn from this topic each time you open the quiz, so two classes never get the same paper, and every review round can be redrawn in a click.

  1. Riddle me this review
    Course terms as riddles: "I have a head that loves water and two tails that hate it…" Teams write what it is.
  2. Close-up fun
    A tiny zoomed-in patch. What's the full picture?
  3. Fact or fiction fun
    Myths and true-but-weird facts. Teams write Fact or Fiction.
  4. Think it through review
    Scenarios, odd ones out, true or false and why, puzzles: questions to reason through. Give teams a little longer.
  5. Films in science-speak fun
    A film plot, described like a research abstract. Name the film.
  6. Who am I? Scientists fun
    Three clues, hardest first. 3 points after clue 1, 2 after clue 2, 1 after clue 3.
  7. Missing vowels: course terms review
    Your key terms with the vowels taken out.
  8. Funny animal noises fun
    YouTube clips of animals making ridiculous noises. Screen off, listen, guess, then watch the reveal.
  9. Closest wins fun
    Estimation questions. Nearest team wins the point. Doubles as the tiebreaker.

A taste of the questions

Think it through

Scenarios, odd ones out and true or false and why, from IB Biology.

  1. A spoonful of glucose sits unchanged in a jar for years, yet your cells break glucose down within seconds at 37 °C. What makes the difference?
  2. A human cell runs thousands of different chemical reactions. Why does it need thousands of different enzymes, not a few all-purpose ones?
  3. Odd one out: digesting starch, building glycogen from glucose, breaking down glucose in respiration. Which is it, and why?
  4. A mutation swaps one amino acid on the far side of an enzyme from its active site, yet the enzyme stops working. How?
  5. A cut apple browns much more slowly in the fridge. The browning is catalysed by an enzyme. Why does the cold slow it down?
  6. True or false, and why? An enzyme boiled for five minutes will work again once it cools back to 37 °C.
Answers
  1. Enzymes (they lower the activation energy, so reactions run fast at body temperature)
  2. Enzymes are specific (each active site fits only one substrate, or a few similar ones)
  3. Building glycogen (it is anabolic, joining monomers; the other two are catabolic)
  4. It changes how the enzyme folds, so the active site changes shape (the substrate no longer fits)
  5. Fewer collisions (molecules move more slowly, so substrate meets active sites less often)
  6. False (it is denatured: the active site has changed shape for good)

Riddle me this

Course terms as riddles. Teams write what it is.

  1. I'm the pocket where the work gets done, built from only a few amino acids. Only the right shape gets through my door. What am I?
  2. Too much heat or the wrong pH and my enzyme loses its shape for good. Its pocket fits nothing any more, and there's no going back. What am I?
  3. I'm the hill every reaction must climb before it can roll downhill. An enzyme can't move the finish line, but it can shrink me. What am I?
  4. When we meet, we both change shape a little to get a better grip. I'm not a lock and key; I'm more of a hug. What am I?
  5. I build big from small: amino acids into proteins, glucose into glycogen. I always cost energy. What am I?
Answers
  1. Active site
  2. Denaturation
  3. Activation energy
  4. Induced fit
  5. Anabolism

Quickfire

Short recall from the same topics.

  1. All the chemical reactions in an organism
  2. Half of metabolism that builds molecules
  3. Half of metabolism that breaks molecules
Answers
  1. Metabolism
  2. Anabolism
  3. Catabolism

How it runs

  1. Open it in the builder. The running order loads ready to go. Swap, add or drop rounds, or draw a round's questions again.
  2. Present it or print it. Present puts each round on the projector in 16:9 with quizmaster notes. Print gives the script, team answer sheets, a picture sheet and a tally sheet on A4 or US Letter, with no projector needed.
  3. Score it. Teams swap sheets, mark, and each plays one joker to double a round. The scores page reveals the leaderboard from last place up.

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