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Enzymes Ks3

Showing top 8 worksheets in the category - Enzymes Ks3 .

Some of the worksheets displayed are Digestion and enzymes work, Food nutritional, Ks3 science revision work special edition, Lesson biology food and one digestion, Curriculum content, Year 7, A ci d s a n d a l ka l i s f o r k s 3 s ci e n ce, Unit 5.

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1. Digestion and Enzymes Worksheet

2. food nutritional, 3. ks3 science revision worksheets special edition, 4. lesson biology: food and one digestion, 5. curriculum content, 7. a ci d s a n d a l ka l i s f o r k s 3 s ci e n ce.

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ks3 enzymes worksheet

Enzymes teaching resources

Worksheets and lesson ideas to challenge students aged 11 to 16 to think hard about enzymes  (gcse and key stage 3).

Overview: enzymes are protein molecules that act as catalysts , speeding up chemical reactions without themselves getting used up. Each enzyme will only speed up a specific reaction, for example, catalase will speed up the decomposition of hydrogen peroxide into water and oxygen but it will not speed up the breakdown of starch into glucose. Enzymes (e.g. catalase) have active sites with specific shapes that bind to the substrate molecule (e.g. hydrogen peroxide) forming an enzyme-substrate complex. The enzyme-substrate complex then breaks down into the enzyme and product, allowing the enzyme to go on and react with another substrate molecule. Temperature and pH affect enzyme function because they can change the shape of the enzyme’s active site, preventing it from binding to the substrate, just as a broken lock will no longer fit the key. When the shape of an enzyme changes we call this denaturation. Any factor that increases the frequency of collisions between enzymes and substrates (increasing concentration, surface area or temperature) will increase the rate of reaction .

Big idea: organisms are organised on a cellular basis and have a finite life span

Key concept:  enzymes are protein molecules with specific shapes that speed up chemical reactions without being used up. Factors such as concentration, temperature and pH affect enzyme action.

Prior knowledge: rates of reaction ; bonding ; catalysts and activation energy

Teaching resources

Where to start.

The decomposition of hydrogen peroxide is a great place to begin thinking about enzymes. The decomposition of hydrogen peroxide into water and oxygen will happen spontaneously, but the addition of a catalyst e.g. catalase will speed this reaction up. Don’t believe me?! Then have a go at the decomposition of hydrogen peroxide demonstration using MnO2 (a chemical catalyst) and a piece of liver (containing catalase, a biological catalyst). Heat the liver and it no longer works. This will then begin an exploration of denaturation.

Modelling enzyme action

One of the best ways to help students understand enzyme action is to build Plasticine models of enzymes breaking down (or building up) substrate molecules. Students can modify the models to show denaturation and the effects of temperature, inhibitors and pH. Make sure you stress the different effects of temperature – denaturation versus collision theory. If possible, ask students to film their models and add annotations to help them consider the dynamic nature of enzyme action.

What do enzymes look like?

The Protein Data Bank provides some beautiful structures of enzymes.

Factors that affect enzyme action

GCSE activity for students to apply their knowledge of enzymes . Students work in pairs to apply their understanding of factors that affect enzymes. They will need to consider pH, temperature and enzyme specificity. This activity assesses and consolidates learning by asking students to apply their knowledge to novel situations. ( PDF )

Thinking deeper

  • What does lemon juice, snake venom and cyanide have in common?
  • Why can you make pineapple jelly from tinned pineapple but not fresh pineapple?
  • When we cool an enzyme reaction the rate of reaction decreases. Do enzymes denature at low temperatures?
  • How does decreasing the pH cause denaturation?
  • Why do you die of heat stroke?

↵ Back to Biology teaching resources

Key Stage 3 Digestive enzymes

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KS3 - Enzymes in Digestion

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  • 1. Multiple Choice 30 seconds 1 pt What am I? I break down protein into amino acids Protease Carbohydrase Lipase
  • 2. Multiple Choice 30 seconds 1 pt What am I? I break down starch into glucose Protease Carbohydrase Lipase
  • 3. Multiple Choice 30 seconds 1 pt What am I? I break down lipids into fatty acids and glycerol Protease Carbohydrase Lipase
  • 4. Multiple Choice 30 seconds 1 pt Starch is broken down into... Glucose Fatty acids and glycerol Amino acids
  • 5. Multiple Choice 30 seconds 1 pt Protein is broken down into... Glucose Fatty acids and glycerol Amino acids
  • 6. Multiple Choice 30 seconds 1 pt Lipids are broken down into... Glucose Fatty acids and glycerol Amino acids
  • 7. Multiple Choice 30 seconds 1 pt Lipids are broken down by lipase into fatty acids and glycerol True False
  • 8. Multiple Choice 30 seconds 1 pt Protein is broken down by amino acids True False
  • 9. Multiple Choice 30 seconds 1 pt Protein is broken down into amino acids True False
  • 10. Multiple Choice 30 seconds 1 pt Lipids are broken down into glucose True False
  • 11. Multiple Choice 30 seconds 1 pt Lipids are broken down into amino acids True False
  • 12. Multiple Choice 30 seconds 1 pt Starch is broken down into amino acids True False
  • 13. Multiple Choice 30 seconds 1 pt Starch is broken down into glucose True False

Which type of digestion mainly takes place in the Mouth using the teeth? (Select Two)

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Digestion and enzymes revision sheet KS3

Digestion and enzymes revision sheet KS3

Subject: Biology

Age range: 11-14

Resource type: Worksheet/Activity

Callaghan’s Resources

Last updated

1 June 2019

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ks3 enzymes worksheet

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COMMENTS

  1. Digestive enzymes and absorption

    1. What are the three types of enzymes mentioned in the video? 2. What's in the bread that the presenter eats? What is this broken down into? Enzymes are protein molecules which act as...

  2. Enzymes Ks3 Worksheets

    Showing top 8 worksheets in the category - Enzymes Ks3. Some of the worksheets displayed are Digestion and enzymes work, Food nutritional, Ks3 science revision work special edition, Lesson biology food and one digestion, Curriculum content, Year 7, A ci d s a n d a l ka l i s f o r k s 3 s ci e n ce, Unit 5.

  3. Enzymes KS3

    Age range: 11-14 Resource type: Lesson (complete) File previews pptx, 40.09 KB pptx, 567.63 KB Introduction to enzymes for KS3 lesson. You will need coloured paper to make the paper chains. Creative Commons "Sharealike" Report this resource to let us know if it violates our terms and conditions.

  4. Enzymes teaching resources

    Worksheets and lesson ideas to challenge students aged 11 to 16 to think hard about enzymes (GCSE and Key Stage 3) Enzymes teacher brief Overview: enzymes are protein molecules that act as catalysts, speeding up chemical reactions without themselves getting used up.

  5. 16 Top "Enzymes Ks3" Teaching Resources curated for you

    Explore more than 16 "Enzymes Ks3" resources for teachers, parents and pupils as well as related resources on "Ks3 Enzymes" Instant access to inspirational lesson plans, schemes of work, assessment, interactive activities, resource packs, PowerPoints, teaching ideas at Twinkl!

  6. PDF Food Nutritional

    Adaptation adds enzymes - which help to digest food into smaller food molecules Adaptation adds bile to the small - intestine to emulsify (break up) lipids (fats & oils) so enzymes can digest them more easily. Adaptation - food chewed, saliva added which contains the enzyme amylase. Turns starch to glucose. CLICK ME!

  7. KS3 digestion topic

    Resource type: Lesson (complete) File previews pptx, 7.28 MB pptx, 711.89 KB pptx, 510.21 KB Complete lesson I created for a low ability year 8 class, introducing a tricky topic of enzymes. Using simple analogies and animations to help explain function of enzymes and the different digestive enzymes.

  8. Enzymes and digestion

    Enzymes and digestion - Worksheet (KS3/4) Subject: Biology Age range: 11-14 Resource type: Worksheet/Activity File previews pdf, 2.06 MB A 4-page worksheet with various activities and application/review questions. Works well with 'Enzymes and digestion loop game'; and/or 'Enzymes and digestion card sort.';

  9. KS3 / GCSE Biology: Enzymes and active sites

    Science presenter Jon Chase demonstrates the action of the enzyme catalase, produced by the liver, in breaking down hydrogen peroxide into water and oxygen. The balanced equation for this reaction ...

  10. 37 Top "Digestion Enzymes Ks3" Teaching Resources curated for you

    Explore more than 37 "Digestion Enzymes Ks3" resources for teachers, parents and pupils as well as related resources on "Enzymes Lock And Key". Instant access to inspirational lesson plans, schemes of work, assessment, interactive activities, resource packs, PowerPoints, teaching ideas at Twinkl!

  11. KS3 Biology

    KS3 Biology learning resources for adults, children, parents and teachers. ... Digestive enzymes and absorption. Enzymes are biological catalysts which speed up reactions including digestion. Food ...

  12. Enzymes & digestion

    Enzymes & digestion Subject: Cells Age range: 14-16 Resource type: Other File previews doc, 506.5 KB doc, 381 KB doc, 78.5 KB ppt, 2.82 MB This is a duplicate of previous worksheets for those without word 2007 - powerpoint display of digestive enzymes and appropriate worksheets Creative Commons "Sharealike"

  13. PDF Lesson Biology: Food and One Digestion

    Investigating the Activity of Enzymes. Amylase is an enzyme, found in the mouth and the small intestine, which breaks down starch. It is often used to investigate the effect of temperature on how fast enzymes work. To do this investigation, starch and amylase solutions are mixed together in a boiling tube.

  14. 16 Top "Enzymes Worksheet" Teaching Resources curated for you

    Explore more than 16 "Enzymes Worksheet" resources for teachers, parents and pupils as well as related resources on "Enzymes" Instant access to inspirational lesson plans, schemes of work, assessment, interactive activities, resource packs, PowerPoints, teaching ideas at Twinkl!

  15. Digestive System Worksheets

    Digestive System Worksheet - KS3 Secondary Resources. 32 reviews. KS3 Biology KS3 Health and the Human Body Nutrition and Digestion. ... enzymes worksheet . respiratory system . ks3 digestive system . digestive system powerpoint . homeschool curriculum . Human Digestive System Labeling Activity ...

  16. Nutrition, digestion and excretion

    KS3 Biology Nutrition, digestion and excretion learning resources for adults, children, parents and teachers. ... Enzymes are biological catalysts which speed up reactions including digestion ...

  17. KS3 Digestive enzymes

    High school Technical education KS4 Y9 Y10 Y11 Biology Science. Digestive enzymes Group sort. by Sarahsschool. Enzymes & Digestion KS3 Labelled diagram. by Cawilkin. True or False Digestive System and Enzymes True or false. by Katiedawsontuto. digestive enzymes words Find the match. by Anonymous.

  18. KS3

    1. Multiple Choice 30 seconds 1 pt What am I? I break down protein into amino acids Protease Carbohydrase Lipase 2. Multiple Choice 30 seconds 1 pt What am I? I break down starch into glucose Protease Carbohydrase Lipase 3. Multiple Choice 30 seconds 1 pt What am I? I break down lipids into fatty acids and glycerol Protease Carbohydrase Lipase

  19. 73 Top "Enzymes" Teaching Resources curated for you

    73 Top "Enzymes" Teaching Resources curated for you. AQA Biology Unit 2 Enzymes in Digestion Cover Lesson Pack 18 reviews. Enzyme Lock and Key Model Illustration. Digestive System Worksheet - KS3 Secondary Resources 32 reviews. Enzymes Quick Quiz 6 reviews.

  20. Enzymes worksheet

    Enzymes worksheet. Subject: Biology. Age range: 5-7. Resource type: Worksheet/Activity. Biorevision Shop. 4.70 49 reviews. Last updated. 3 January 2017. ... Thank so much for a really simple (and fun) introduction to enzymes. Perfect for low ability Empty reply does not make any sense for the end user. Submit reply Cancel. RachelPrince5. 2 ...

  21. Enzymes Questions and Revision

    The 'Lock and Key' Model All enzymes have an active site which is where it can bind to a substrate (substance involved in the reaction). Enzymes and their active sites have very specific shapes. The specific shape of each active site means only certain substrates can bind to it and form enzyme-substrate complexes.

  22. KS3 / KS4

    KS3 / KS4 - Digestion and Enzymes - Workbook Subject: Biology Age range: 11-14 Resource type: Worksheet/Activity File previews pdf, 60.87 KB ppt, 18.93 MB pdf, 425.7 KB Self explaining workbook which can be printed or used electronically in order to help students learn or review digestion.

  23. Digestion and enzymes revision sheet KS3

    Digestion and enzymes revision sheet KS3 | Teaching Resources Digestion and enzymes revision sheet KS3 Subject: Biology Age range: 11-14 Resource type: Worksheet/Activity File previews docx, 664.66 KB An A3 sheet with questions on the digestive system and enzymes. Creative Commons "Sharealike"