4,9 von 5 Sternen
von Glaci M. am 10. Februar 2023 für Enzymes: Activation Energy and Mechanisms — Enzyme Catalysis
Recomendo pra todos que querem saber melhor sob Medina das universidades
Prof Kevin Ahern is incredible!
von Alejandro A. am 12. Dezember 2022 für Enzymes and Enzyme Kinetics
Prof Kevin Ahern is incredible! Great summary and really well explained!
Easy to understand and memorize
von deleted u. am 06. April 2022 für Enzymes and Enzyme Kinetics
Professor Kevin make it enjoyable course; It helped not only in remembering many info that I forgot in the class, but also I did learn many new valuable information. The fact that the explanation provided by Dr. Kevin is so easy to understand and memorize, make this course very interesting.
Easy to understand
von Prince A. am 29. Januar 2022 für Enzymes and Enzyme Kinetics
Very concise and simple explanations. He made it easy to understand.
This lecture provided me with so much clarity. Thank you
von Sabrina B. am 06. Oktober 2021 für Kinetic Considerations – Enzyme Catalysis
This lecture provided me with so much clarity. Thank you
Why are enzyme vital? Drug paths and function
von eyob a. am 01. Juli 2021 für Enzymes and Enzyme Kinetics
Interesting. I have tries to learn this about 2-3 times but never quiet stuck in my mind. Too easy to forget why an enzyme does this or that, however Dr.Kevins way of sharing the WHY this is significant really helped conndct the dots.
von Majid K. am 03. Februar 2021 für Michaelis-Menten Kinetics: Parameters – Enzyme Classification
such a hard concept explained so easy and well. such an amazing work sir
von Donna M. am 11. Januar 2021 für Enzymes and Enzyme Kinetics
The lectures on Enzyme and Enzymes Kinetics were thorough. There were detailed information on some important concepts.
von Otaru O. am 17. November 2020 für Enzymes and Enzyme Kinetics
I love the way he explained enzyme.... A brief and easy to understand lecture
Best Biochem experience!
von Dildeep C. am 11. November 2020 für Enzymes and Enzyme Kinetics
Thank you Dr. Kevin Ahern. You made me fall in love with biochemistry.
von Stephen O. am 04. November 2020 für Enzymes and Enzyme Kinetics
I always enjoyed Dr Ahern's handling of the Biochemistry subject, especially his eplanations
von Nishant S. am 23. Oktober 2020 für Enzymes and Enzyme Kinetics
Every slide has been clearly explained in detailed form. Thanks sir.
von Temple I. am 01. Juni 2020 für Kinetic Considerations – Enzyme Catalysis
I really like the video, makes medical biochemistry easier to understand
I FINALLY UNDERSTAND!
von laticha n. am 29. April 2020 für Enzymes and Enzyme Kinetics
Before Lecturio I struggled with comprehending the mechanism of proteases and enzyme kinetics. Dr. Ahern brilliantly & easily explained these concepts in less than 5 minutes. I am currently in a graduate program for Medical Sciences, we have cumulative exams every quarter & I was just memorizing the info but now I finally understand. I recommend Lecturio to pre-meds, MCAT, and Med students.
von Jose Arturo G. am 19. April 2020 für Enzymes and Enzyme Kinetics
Dr. Ahern is a fantastic lecturer. All the course is simply awsome.
von Jared P. am 02. Januar 2020 für Binding of Multiple Substrates – Enzyme Classification
The Professor is excellent, every one can understand easily de concepts
von Sandrine D. am 18. Dezember 2019 für Uncompetitive Reversible Enzyme Inhibition – Enzyme Inhibitors
Excellent teacher . Great lectures . He knows how to teach the subject matter
von Dran X. am 08. November 2019 für Background of Enzymatic Reactions – Enzyme Catalysis
I love it... 100% worth it... Made it simple and easy to understand!
von Sayra N. am 17. September 2019 für Enzymes and Enzyme Kinetics
Dr. Ahern creates a great foundation by breaking down concepts and building on them throughout the lectures.
Very Clear Explanation!
von Ilay B. am 13. März 2019 für Perfect Enzyme and Lineweaver Burk Plot – Enzyme Classification
I finally understood why we have Lineweaver Burk Plot and how we read it.
YOU ARE EVERYTHING A STUDENT NEEDS IN A LECTURER
von Shaheen S. am 01. März 2019 für Enzymes and Enzyme Kinetics
Great lecture. You have a great and enthusiastic way of explaining.
von marcus o. am 26. Februar 2019 für Michaelis-Menten Kinetics: Considerations – Enzyme Classification
Perfect way of explaining complex things. This is rarely seen by lecturers. Wow!
von Mary T. am 26. Januar 2019 für Serine Proteases – Enzyme Catalysis
Attaractively and well explained video of serine protease catalytic mechanism that I have ever seen...Thank you..????
Perfect for better understanding enzymes
von Johannes M. am 14. Dezember 2018 für Enzymes and Enzyme Kinetics
Amazing lectures! Very well explained and effective videos. A perfect way to get a clear view of the subjects, very glad I found this.
von Hazazi M. am 04. Oktober 2018 für Michaelis-Menten Kinetics: Parameters – Enzyme Classification
THANK YOU Pro Ahern you're amazing! very well explained!
simply the best
von Hazazi M. am 04. Oktober 2018 für Michaelis-Menten Kinetics: Considerations – Enzyme Classification
Professor Ahern is a perfect teacher and he makes everything so easy to understand
von Nathan A L. am 16. August 2018 für Enzymes and Enzyme Kinetics
Great job again Dr. Ahern! You have helped me better my understanding of these topics.
von Mahmoud G. am 03. August 2018 für Enzymes and Enzyme Kinetics
very informative and well explained lecture. Dr. Kevin Ahern has changed my view of biochemistry.
von Fatima s. am 31. Juli 2018 für Enzymes and Enzyme Kinetics
Very well put. Dr Kevin Ahern explains difficult topics in a very short concise and interesting manner.
Not my favorite
von Maria de Lourdes C. am 11. Mai 2018 für Enzymes and Enzyme Kinetics
Not my favorite subject but very well explained and understanded.
Thanks a lot prof.
von Ahmad Jawid A. am 30. April 2018 für Serine Proteases – Enzyme Catalysis
It is really helpful. I appreciate your kind efforts. Thanks verh much.
von Pedro D. am 27. April 2018 für Enzymes and Enzyme Kinetics
It was just amazing, he was critic to give information and had the most important skills for me, and that is: perfect didactic. Had all concise information I needed.
von Amna A. am 26. April 2018 für Serine Proteases – Enzyme Catalysis
He simplified the concepts and illustrated by a very nice way
von Suhel H. am 23. April 2018 für Enzymes and Enzyme Kinetics
Excellent delivery of content which was easy to understandGood use of diagrams and graphs to help explain key concepts
Good lecture at 1.5x,
von Trient S. am 01. April 2018 für Enzymes and Enzyme Kinetics
I liked the lecture and the diagrams, I can put 5 stars yet because I am unsure how relevant everything is. Pretty basic biochem, but it was a good refresher. The diagrams are helpful.
Wide variety of cover
von kipruto k. am 18. März 2018 für Enzymes and Enzyme Kinetics
The material covered a wide variety and having a non-science background it is clear and easy to understand.
von Justina Q. am 18. Februar 2018 für Enzymes and Enzyme Kinetics
I like how Dr. Ahern took his time to explain the topic in an articulate manner. Helped me understand the topic and want to learn it more.
von Javier J. am 17. Februar 2018 für Enzymes and Enzyme Kinetics
El semestre pasado apenas y me di cuenta de todo lo que la enzimas y las reacciones significaban, ahora creo tener una visión mucho ma completa, GRACIAS
Awesome , Intuitive , Outstanding
von Koriante R. am 16. Februar 2018 für Enzymes and Enzyme Kinetics
Very easily to follow. The concepts are explained so that one who isn’t familiar with biochem can understand with ease.
Only one reccomendation.
von Carlos C. am 17. Januar 2018 für Enzymes and Enzyme Kinetics
Doctor Ahren.Great explanations and enhances my knowledge in biochemistry, i´d rather reccomend you tu use a lower velocity on your explanations because some of the students are foreigners and they probably may lose the idea.Nevertheless i´m completely satisfied with your video lectures.
von Jillian S. am 16. Januar 2018 für Background of Enzymatic Reactions – Enzyme Catalysis
Simplified the lecture in enzymes and i like how everything was explained in a simple but direct way. :)
Very clear and succint lecture
von Catherine M. am 07. November 2017 für Enzymes and Enzyme Kinetics
Wow! Never thought I’d be amazed by the clarity and succintness of the discussion. Packs into a few minutes what would take a four hour lecture to discuss. Defintely recommended these lectures to my friends who are struggling with biochemistry and don’t want to use the books so much.
Clear, concise enough and interestingly explained
von Benjamin K. am 25. Oktober 2017 für Catalysis Considerations – Enzyme Classification
It is very clearly and enthusiastically explained. You make Biochem easy to understand.
Great enzyme lectures
von VICTOR P. am 21. Oktober 2017 für Irreversible Enzyme Inhibition: Suicide – Enzyme Inhibitors
As a medical student I found this series of lectures on enzymes extremely clarifying. Dr Ahern is a great lecturer. Thank you so much.
I understood perfectly the concepts the way he explained them
von Yainely V. am 26. September 2017 für Michaelis-Menten Kinetics: Considerations – Enzyme Classification
I understood perfectly the concepts the way he explained them. He makes it ease to grasp
von AJ B. am 22. September 2017 für Enzymes and Enzyme Kinetics
Very simple and easy to understand. Would definitely recommend this course.
von Nguyen Thanh T. am 11. September 2017 für Enzymes and Enzyme Kinetics
I love to use this great app to review my med knowledge!
The best on internet
von Bassam E. am 08. September 2017 für Enzymes and Enzyme Kinetics
no words can describe how much this was amazingly useful
von Azhar A. am 03. September 2017 für Background of Enzymatic Reactions – Enzyme Catalysis
l am a pre-med student and after watching this lecture I decided I was definitely subscribing! Everything was explained clearly and I understood the concept completely.
von Jefferson P. am 24. August 2017 für Enzymes and Enzyme Kinetics
Both comprehensive and simple lectures, could use some more medical/clinical correlations, though.
Fast and fun!
von Andreas F. am 16. August 2017 für Enzymes and Enzyme Kinetics
It is fantastic to have a lecturer making a diffucult subject easy. Now i can not wait diving into some hardcore books about enzymes. Watching an inspiring teacher really makes a difference. This guy is also rather fast talking so you dont need to speed up, witch i do quite often. Also the pop quiz in the end just makes it so much more fun. It becomes a game. And thats great and enhances long term memory.
von Jarom S. am 11. Juli 2017 für Enzymes and Enzyme Kinetics
It had been a few years since reviewing enzyme kinematics, this was a great refresher!
von Alexis M. am 22. Juni 2017 für Enzymes and Enzyme Kinetics
it´s great conference, well explain, clear and simple. like ir a lot
The facilitators are very good because they motivate you to learn.
von Alexander W. am 05. Juni 2017 für Enzymes and Enzyme Kinetics
The facilitators are very good because they motivate you to learn.
very good lecture
von Daniel A. am 01. Juni 2017 für Enzymes and Enzyme Kinetics
thanks. the lecture was very informative and concise for such a complicated topic
its actually good, but i still have hard time grasping
von deleted u. am 21. Mai 2017 für Enzymes and Enzyme Kinetics
the plot charts are really confusing. takes a few replays to grasp a little.
von deleted u. am 16. Mai 2017 für Enzymes and Enzyme Kinetics
Lecturer seems to know the material and is able to convey in a manner that is engaging
Biochemistry who every thought it could be fun to learn
von Steve P. am 07. April 2017 für Enzymes and Enzyme Kinetics
These lessons are brilliant enjoyed them so much I have bought some books by Kevin Ahern, PhD the questions at the end also reinforce learning.
Great biochem professor
von Melissa T. am 17. Dezember 2016 für Enzymes and Enzyme Kinetics
This is professor is really good at explaining concepts and is thorough with getting caught up in the details
von firstname.lastname@example.org s. am 23. November 2016 für Enzymes and Enzyme Kinetics
A very clear understanding of the basic concepts was developed by Kevin. Good examples and perfect illustrations made everything so easy and interesting.
von beatrice v. am 16. November 2016 für Enzymes and Enzyme Kinetics
very clear Explanation; I managed to understand mechanism for each type of Ihnibitors thus I can now draw the lineweaver plots.
Great constructive instruction
von Thelma B. am 04. November 2016 für Enzymes and Enzyme Kinetics
Great constructive instruction at a understandable medical level thank you! Thelma Boshoff
Enzymatic activities are measured by breakdown of the substrates and generation of products. The methods used for measuring enzymatic activities include spectrophotometry, fluorescence, and radiolabeling.Why is enzyme kinetics important in biochemistry? ›
Enzymes are essential for life and are one of the most important types of protein in the human body. Studying enzyme kinetics provides information about the diverse range of reactions in the human body, which we can use to understand and predict the metabolism of all living things.What is enzyme kinetics in biochemistry? ›
Enzyme kinetics is the study of the binding affinities of substrates and inhibitors and the maximal catalytic rates that can be achieved.What subject is enzyme kinetics? ›
Enzymes are protein catalysts that accelerate the rates at which reactions approach equilibrium. Enzyme kinetics is the branch of biochemistry that deals with a quantitative description of this process, mainly, how experimental variables affect reaction rates.How do you memorize enzyme classes? ›
OK, so these are different enzyme classifications and our mnemonic for memorizing them is: Over the HILL. Here you can pay attention to the capitalized letters. So you can see that “O” is for oxioreductase, “T” is for transferase, HILL – H I L L, is for hydrolase, isomerase, ligase, and lyase.What are the most studied enzymes? ›
Amylase and lipase are two very important enzymes that have been vastly studied and have great importance in different industries and therapeutic industry.Is enzyme kinetics the same as thermodynamics? ›
Thermodynamics focuses on the energetics of the products and the reactants, whereas kinetics focuses on the pathway from reactants to products.What is an example of enzyme kinetics? ›
Michaelis-Menten Enzyme Kinetics. Enzymes are highly specific catalysts for biochemical reactions, with each enzyme showing a selectivity for a single reactant, or substrate. For example, the enzyme acetylcholinesterase catalyzes the decomposition of the neurotransmitter acetylcholine to choline and acetic acid.What is Vmax in biochemistry? ›
Vmax is the reaction rate when the enzyme is fully saturated by substrate, indicating that all the binding sites are being constantly reoccupied. From: Introduction to Biological and Small Molecule Drug Research and Development, 2013.What are the five major classes of enzymes? ›
These classes are: Oxidoreductases, Transferases, Hydrolases, Lyases, Isomerases, and Ligases.
The correct option is C 6; dehydrogenase, tranferase, hydrolases, lyases, isomerases, ligases. There are 6 classes of enzymes: Oxidoreductase/dehydrogenase: Enzymes which catalyse oxidoreduction between two substrates.How many enzyme classes are there? ›
According to the International Union of Biochemists (I U B), enzymes are divided into six functional classes and are classified based on the type of reaction in which they are used to catalyze. The six kinds of enzymes are hydrolases, oxidoreductases, lyases, transferases, ligases and isomerases.What are the 7 classes of enzymes? ›
Enzymes can be classified into 7 categories according to the type of reaction they catalyse. These categories are oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases, and translocases.What is the fastest way to memorize science? ›
- Try to understand the information first. Information that is organized and makes sense to you is easier to memorize. ...
- Link it. ...
- Sleep on it. ...
- Self-test. ...
- Use distributed practice. ...
- Write it out. ...
- Create meaningful groups. ...
- Use mnemonics.
- Class 1. Oxidoreductases.
- Class 2. Transferases.
- Class 3. Hydrolases.
- Class 4. Lyases.
- Class 5. Isomerases.
- Class 6. Ligases.
Amylase (made in the mouth and pancreas; breaks down complex carbohydrates) Lipase (made in the pancreas; breaks down fats) Protease (made in the pancreas; breaks down proteins)What are the 4 main enzymes? ›
There are four main enzymes that facilitate DNA replication: helicase, primase, DNA polymerase, and ligase.What is the most common enzyme in the human body? ›
- Carbohydrase breaks down carbohydrates into sugars.
- Lipase breaks down fats into fatty acids.
- Protease breaks down protein into amino acids.
This is favorable. If ∆S is positive, this means that the disorder of the universe is increasing from reactants to products. This is also favorable and it often means making more molecules.What is the difference between chemical equilibrium and kinetics? ›
The key difference between chemical kinetics and chemical equilibrium is that chemical kinetics deals with reaction rates, whereas chemical equilibrium deals with the unchanging nature of the concentrations of reactants and products over time.
The Second Law of Thermodynamics states that entropy constantly increases in a closed system. Biological catalysts are called enzymes, and the overwhelming majority of enzymes are proteins.What is a real life example of enzymes? ›
Examples of specific enzymes
A few examples include: Lipases: This group of enzymes help digest fats in the gut. Amylase: In the saliva, amylase helps change starches into sugars. Maltase: This also occurs in the saliva, and breaks the sugar maltose into glucose.
Enzymes are used in the food, agricultural, cosmetic, and pharmaceutical industries to control and speed up reactions in order to quickly and accurately obtain a valuable final product. Enzymes are crucial to making cheese, brewing beer, baking bread, extracting fruit juice, tanning leather, and much more.What is an enzyme daily life example? ›
Enzymes are used to make and improve nearly 400 everyday consumer and commercial products. They are used in foods and beverages processing, animal nutrition, textiles, household cleaning and fuel for cars and energy generation.How does pH affect enzyme activity? ›
Enzyme activity is at its maximum value at the optimum pH. As the pH value is increased above or decreased below the optimum pH the enzyme activity decreases.Does higher Vmax mean faster reaction? ›
Thus, the amount of enzyme becomes the rate-controlling parameter, and an increase in the enzymes increases the maximal velocity or Vmax. Therefore, the higher the enzyme amount, the higher the Vmax of the reaction.What does Km mean in Michaelis-Menten? ›
This is usually expressed as the Km (Michaelis constant) of the enzyme, an inverse measure of affinity. For practical purposes, Km is the concentration of substrate which permits the enzyme to achieve half Vmax.What are the common enzymes for MCAT? ›
These seven enzyme categories include oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases, and translocases.How many enzymes are there in the human body? ›
The macromolecular components of all enzymes consist of protein, except in ribozymes, which have ribonucleic acid. Recent studies estimate that the human body produces approximately 1300 different enzymes.Is A enzyme A protein? ›
Enzymes are proteins comprised of amino acids linked together in one or more polypeptide chains.
Every enzyme code consists of the letters "EC" followed by four numbers separated by periods. Those numbers represent a progressively finer classification of the enzyme. Preliminary EC numbers exist and have an 'n' as part of the fourth (serial) digit (e.g. EC 3.5. 1.Is pepsin an enzyme? ›
An enzyme made in the stomach that breaks down proteins in food during digestion.What are the 8 types of enzymes? ›
According to the type of reactions that the enzymes catalyze, enzymes are classified into seven categories, which are oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases, and translocases. Oxidoreductases, transferases and hydrolases are the most abundant forms of enzymes.Which is the largest class of enzymes? ›
The largest Enzyme in the human body is Titin.What is class 4 enzyme? ›
This subclass contains the decarboxylases (carboxy-lyases; EC 4.1. 1), the aldehyde-lyases, which catalyse the reversal of an aldol condensation (EC 4.1. 2), the oxo-acid-lyases, which catalyse the cleavage of a 3-hydroxy acid (EC 4.1. 3) and other carbon- carbon lyases (EC 4.1.What are the 2 types of enzymes? ›
There are 2 types of enzymes, ones that help join specific molecules together to form new molecules & others that help break specific molecules apart into separate molecules.What is the study of enzymes called? ›
Enzymology is a field of study that deals with a specific group of proteins called enzymes. These proteins accelerate specific chemical reactions in a biological system, and these reactions are essential to the growth, development, adaptation, and survival of the organism.What is an enzyme study? ›
Cardiac enzyme studies measure the levels of enzymes and proteins that are linked with injury of the heart muscle. The test checks for the proteins troponin I (TnI) and troponin T (TnT).How do you identify an enzyme? ›
One way to discover an enzyme's function is to determine its substrate specificity—which particular proteins or small molecules are recognized and bound by its catalytic cavities known as active sites.How do scientists use enzymes in research? ›
Scientists use them to cut DNA molecules at interesting specific locations and then reattach different DNA sequences to each other using an enzyme called DNA ligase, creating new, recombined DNA sequences, or essentially new DNA molecules.
Amylase (made in the mouth and pancreas; breaks down complex carbohydrates) Lipase (made in the pancreas; breaks down fats) Protease (made in the pancreas; breaks down proteins)Are enzymes biology or chemistry? ›
An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.What branch of biology deals with enzymes? ›
Enzymes can be classified into 7 categories according to the type of reaction they catalyse. These categories are oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases, and translocases. Out of these, oxidoreductases, transferases and hydrolases are the most abundant forms of enzymes.What are the 6 types of enzymes? ›
The six kinds of enzymes are hydrolases, oxidoreductases, lyases, transferases, ligases and isomerases.What diseases are diagnosed by enzymes? ›
Enzymes are the preferred markers in various disease states such as myocardial infarction, jaundice, pancreatitis, cancer, neurodegenerative disorders, etc. They provide insight into the disease process by diagnosis, prognosis and assessment of response therapy.What are the 4 types of enzymes? ›
There are six main categories of enzymes: oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases. Each category carries out a general type of reaction but catalyzes many different specific reactions within their own category.How do doctors check enzymes? ›
An enzyme marker is a blood test to measure the levels of specific enzymes in your blood. Musculoskeletal diseases, organ damage and injuries can cause enzymes to leak from cells into your blood. Your healthcare provider may refer to enzyme markers as biomarkers (biological markers).What are 3 practical applications of using enzymes? ›
Enzymes are used in the food, agricultural, cosmetic, and pharmaceutical industries to control and speed up reactions in order to quickly and accurately obtain a valuable final product. Enzymes are crucial to making cheese, brewing beer, baking bread, extracting fruit juice, tanning leather, and much more.How are enzymes used in everyday life? ›
Enzymes are used to make and improve nearly 400 everyday consumer and commercial products. They are used in foods and beverages processing, animal nutrition, textiles, household cleaning and fuel for cars and energy generation.
Enzymes help facilitate biochemical reactions in our bodies. They aid in everything from breathing to digestion. Having too little or too much of a certain enzyme can lead to health problems. Some people with chronic conditions may need to take enzyme supplements to help their bodies work as they should.