Where and how does pH affect carbohydrases?

Carbohydrases are enzymes that break down carbohydrates into smaller sugar molecules. They are usually made in the the pancreas and released into the small intestines. All enzymes are sensitive to changes in pH. This is because every enzyme works best at an optimum pH. Changes to pH affect the enzyme’s active site. The shape of the active site is complementary to its substrate. So if the active site is changed, due to changes in pH, the the substrate can no longer bind to the active site and the reaction cannot be catalysed. At this point the enzyme is denatured. Enzymes denature when the pH is far away from its optimum. The reason for this is pH is a measure of hydrogen ion concentration. The lower the pH, the more hydrogen ions are present. Enzymes are large protein molecules that are held together by peptide bonds and other bonds such as hydrogen bonds, ionic bonds etc. Hydrogen ions can disrupt or break hydrogen bond interactions within the enzymes. These bonds are important in maintain the shape of the active site hence the shape is lost and the enzyme denatures. I hope this answers your question.

Zeba Chowdhury

5.8k students helped

Biology Tutor

What is Q&A on Scoodle?

At Scoodle we understand that everyone learns in a different way. Some people learn through practice, using essays and notes; others prefer video lessons to watch and learn, some just need help with a specifically hard question, while some learn best 1-on-1 tutoring sessions. At Scoodle we cater for all types of learning styles and needs. From GCSE Maths video lessons to A-level English essays and specialist educators in every subject - we’ve got you covered.

Scoodle has helped over 131,000 students so far

5 Biology tutors available now

Verified

Alisha Khanum

Online lessons

Graduate from UCL. Really enjoy tutoring and helping others

Hi :) I'm Alisha. Ive been told that I am an individual who has a positive can do attitude and easy going. You can let me know if this is true ? I've been tutoring for almost 9 years now and absolutely enjoy it. Especially knowing that I'm helping students to build a strong foundation to set them up for the future. I have tutored students from KS1 upto A-levels, teaching Maths and Sciences (and English to younger students). Not only have I tutored students, I have had the amazing opportunity (and a challenging yet unique experience) to also home school a number of students in the past. Misc: I am a socially active person who enjoys trying out new activities or visiting new places. Next on the to do list is sky diving (ahhhh). I also try to be actively involved in raising funds for different charities. For example, I have helped organise charity events to raise funds for educational resources and schools in rural developing countries and orphans in need.

£45Per hour

Verified

Kate Mackay

Online lessons

Dedicated tutor and undergraduate at Institute of Education, UCL

With 12 years experience in teaching I know my subjects well. I have taught GCSE Science and A-level Biology with a variety of exam boards meaning I am confident in what I deliver. I have a middle management role in my school so I know all about the curriculum and how to best to deliver my subjects. When I am not teaching I love photography and walking. I often combine both taking my camera and capturing what I see.

£35Per hour

136Students helped

Verified

Abdur Khan

Online lessons

Second year dental student, happy to help :)

Hi, my name is Abdur and I’m currently studying Dentistry at the University of Bristol. I’d describe myself as a kind and friendly person who loves to teach using evidence-based techniques. As a dental student, a lot of my time is spent learning but also teaching others as it reinforces the knowledge I’ve gained from lectures, seminars and clinical sessions. I’d describing my style of teaching as interactive and personal as everyone has their own way of grasping topics. What sets my teaching apart from others is that it integrates core topics and links the common themes which cements the information to a deeper level of understanding. This is something I’ve used in my own studies which has helped me to ranked in the top 10 for the end of Year 1 exams and over achieve over 70% in end of Year 2 exams. I have been tutoring and mentoring students since 2016. What I’ve learnt from this experience is that building confidence in students is one of the key components to boosting grades. I highlight strengths and weaknesses so we can reinforce the areas which require more attention. This is through evidence-based teaching called active recall. The purpose of this method is to stimulate the mind through questioning rather than passive learning. Passive learning is something many students are guilty of which often leads to average grades. Through active learning it highlights areas that requires more attention. Spaced repetition will help to prevent forgetting important information and enables long term storage of knowledge which is crucial for exams!

£20Per hour

345Students helped

Verified

Khadijah Naeem

Online lessons

Many years of experience in: English, Maths, Biology Chemistry for GCSE/IGCSE pupils!

A pasionate teacher for both primary and secodary levels (including GCSE/IGCSE). I thrive in assisting students on the following subjects: -English / English Language -Maths -Biology -Chemistry Be sure to reach out if you require any help in your studies to success.

£20Per hour

744Students helped

Verified

Jeffrey Tooze

Online lessons

Biology tutor with 4 years of experience. Medical student with a BA in biochemistry

I am currently a 4th year medical student studying at the University of Cambridge. I have previously obtained a BA in biochemistry and have 4 years of tutoring experience. My style revolves around a dialogue with students to help them understand topics through first principles, not just to learn a topic through a textbook.

£30Per hour