GCSE Biology - Drug Development and Testing - Clinical Trials #45

Most drugs originate from nature e.g. from the back of a tree, but they have to refined and tested in clinical trials. Learn how this process works and the many stages we go through to ensure the final drug is effective.

[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has built specifically to make learning and revision as quick and easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you at a glance what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A huge bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[o]

Covered this in 6 minutes My teacher couldn’t explain this in a week

[emilliegibson]

It's quite fun to just surf through your lessons, cry at the complexity of half of the teacher explanations, and then come here and listen to you cover it simply in, like, 5 minutes or so. It's really helpful. :D

[maxineparker]

Didn't feel too long, excellent, really well explained. Thank you.

[WEEBWHOSELLSWEED]

I don't find these "long" videos boring, these are exciting and I am all for it.
if cognito's video were long then a movie must look like an eternity.

[jessicagibson]

Anyone else her because they didn’t understand what their teachers said but this video explained it clearly in 6 minutes 🙋‍♀️

[robloxxkk]

you helped me so much man. i went from a 6 6 7 in my first combined science mock to 8 8 9 in my most recent mock. ive got my final set of mocks before gcse starting on monday

[ltna]

Online schoolwork because of coronavirus squad?


2021 update - year 11 and given up on good grades lmao

[wiseman]

This video is class . Thanks for helping me revise.

[nouralbardisy]

I love that your videos have mini diagrams, being a visual learner with a photographic memory allows me to absorb information better and easier. Thank you!

[isobelchester]

Hi! This video was definitely not too long, I found it was the perfect length to consolidate and take further notes during home learning.

[lucyvokes]

Not too long at all, really well explained. Thank you

[KeepLearing]

It's not long, it's perfect - because the structure, content and animation was exceptionally planned ❤

[R.Bhandari]

Thank you for that video it was very informative and straight to the point and has helped me alot with this subject, Keep up the good work 👏 🙌

[nooryousaf]

longer videos are actually really nice. Thank you :)

[hakki_haks]

This is a brilliant video; with its great animations and flow diagrams. It really has helped my understanding of the process. Thank you so much!

[zoey]

great video!! i have my biology mock tomorrow and these videos are really helping with revision :)

UPDATE: i actually think i did really well, although i don't want to jinx it just yet!!!

[tonyzambonistarkoni]

Great explanation but you missed the main reason why placebos are used- because of the placebo effect, when the patient expects to feel better and their brain is tricked into thinking the symptoms have been treated even though they haven't, so they feel better anyway. Placebos are used so you can see the actual effect of the drug rather than just the placebo effect

[freyadcoding]

This length of videos is amazing and fits well with the way I take notes. Also, I just want to say thank you for these amazing videos that have, quite frankly, saved my life. God Bless.

[r.i]

watching the video in 2x speed so I finish it in 3:13, modern problems require modern solutions.