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Item description

Enzymes as biological catalysts consists of three very handy printable black-and-white Student Worksheets (PLUS Answer Sheets) that will help your students to consolidate their understanding of this fundamental topic in biology (they will also save you lots of prep time). Enzymes as biological catalysts is suitable for students in Years 10 – 12 and can be used as class work, homework, revision or even tests. It includes a fun word find.


Content covered:

  • Characteristics of enzymes and how important they are as biological catalysts

  • How enzymes work to speed up chemical reactions in the body

  • Differences between the ‘lock-and-key‘ and ‘induced-fit‘ models of enzyme action

  • Factors that affect enzyme activity, such as temperature and pH

  • Competitive/non-competitive enzyme inhibition and

  • Cofactors and coenzymes.


Enzymes as biological catalysts is not just about answering questions. Your students will enjoy the ‘active’ nature of the tasks here, requiring them to:

  • analyse diagrams and graphs

  • label diagrams

  • complete ‘fill-in-the-gaps’ passages

  • complete a word find


Enzymes as biological catalysts includes an Answer Key (PDF) with images in full colour that look great on the big screen and can be used to facilitate good discussion. There is no need to research or fact-check here; it’s all been done for you.


I hope you and your students find this product useful and that you enjoy using it as much as I enjoyed creating it!


Praise for Ariana’s Active Science & Biology worksheets:

“I used about 95% of the worksheets with my kids this year and it was a gem during remote learning. Honestly the best resource I’ve ever purchased” – Emma Palmer (via Facebook)


Ariana’s Active Science

This resource is for classroom only and not to be shared publicly. Copying for more than one teacher, department, school or district is prohibited, as is creating publicly accessible links. Failure to comply is an infringement of copyright.