GCSE Biology - Active Transport #9
Вставка
- Опубліковано 20 тра 2024
- This lesson covers:
- What active transport it
- How it's different to diffusion
- How root hair cells are adapted to absorb mineral ions
Exam board specific info:
AQA - Suitable for everyone
IGCSE Edexcel - Suitable for everyone
Edexcel - Suitable for everyone
OCR 21st Century - Suitable for everyone
OCR Gateway - Suitable for everyone
CIE - Suitable for everyone
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
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Difficult to do as different exam boards have removed different topics, also Higher and Foundation have removed different things. Also, some videos would have bits that are both included and bits that have been taken out. A near impossible task.
Use free science lessons. The teacher has made a playlist for paper 1and 2 for chemistry,biology and physics for the 2022 exams.
He has all the specific topics u need to cover
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Heya - maths is now live! We don’t have time to add curated subtitles but UA-cam usually does a pretty good job :)
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Hey, at 1:21 it shows a diagram of Active transport that moves from a lower concentration to a higher concentration.
Can I use this as a definition for Active Transport - "movement of particles to a higher concentration to a lower concentration"
Is it that, or is it higher concentration to lower concentration, since other videos are saying higher concentration to lower concentration?
the former. active transport is lower concentration TO higher concentration. think of it like the clue is in the name. active, so requiring energy and to require energy it must be lower concentration to higher concentration because it would be passive otherwise (like diffusion). hope that makes sense
Thank you
Hello sir,
Thank you for sharing this explanation.
One query-
In roots, water absorption is due to osmosis only or both active transport plus osmosis?
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Does this work for gce biology 5090 ?
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what happens if there are more mineral ions outside the cells (for plants)? would the plant use diffusion or osmosis to retrieve the mineral ions?
ik ur comment is old,i think it would technically be diffusion as osmosis is for water,but i dont think there would be more mineral ions outside in the first place
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