The Whole of AQA A-Level Biology | Exam Revision for Papers 1, 2 and 3

This video concisely and with detail covers the content for the AQA A-Level Biology exams

2024 predicted Exam Papers for GCSE and A-Level Biology, Chemistry, Physics, and Maths Revision Essential!

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00:00:00 Start
00:01:42 Topic 1 - Biological Molecules
00:02:22 Bonding in biological molecules
00:03:51 Monomers and Polymers
00:06:47 Carbohydrates
00:16:51 Lipids
00:21:09 Proteins
00:24:36 Biuret test for proteins
00:25:09 Protein structures
00:30:02 Enzymes
00:45:23 Nucleotides
00:46:59 RNA
00:48:04 DNA replication
00:49:32 Adenosine triphosphate – ATP
00:51:35 Water
00:54:36 Inorganic ions
00:56:11 Topic 2 - Cells
01:06:46 Structure of viruses
01:08:21 Very small units
01:11:21 Types of microscopes
01:20:21 Separating cell components
01:22:01 The cell cycle
01:27:05 Required Practical 2 - Preparation of stained squashes of cells from plant root tips
01:29:08 Cancer
01:30:21 Binary fission in prokaryotic cells
01:31:13 Virus replication
01:32:07 Cell recognition and the immune system
01:36:07 Required Practical 3 - Production of a dilution series of a solute to produce a calibration curve with which to identify the water potential of plant tissue
01:37:27 Osmosis
01:41:21 Required Practical 4 - Investigation into the effect of a named variable on the permeability of cell-surface membranes
01:42:20 Diffusion
01:50:47 Antigens
01:52:11 Phagocytosis
01:53:14 Lymphocytes
01:55:50 Antibodies
01:57:28 Vaccines and immunity
02:00:42 HIV and AIDS
02:02:40 Monoclonal antibodies and ELISA tests
02:05:46 Topic 3 - Organisms exchange substances with their environment
02:06:35 Surface area to volume ratio
02:11:26 Gas exchange
02:23:51 Digestion
02:34:19 Required practical 5 - Dissection of animal or plant respiratory system or mass transport system
02:36:05 Mass transport
03:00:00 Topic 4 - Genetic information, variation and relationships between organisms
03:00:50 DNA, genes and chromosomes
03:14:57 Natural selection
03:16:03 Genetic diversity
03:17:28 Directional and stabilizing selection
03:20:39 Antibiotic resistance
03:23:07 Required Practical 6 - Use of aseptic techniques to investigate the effect of anti-microbial substances on microbial growth (Part 1)
03:24:39 Required Practical 6 - Use of aseptic techniques to investigate the effect of anti-microbial substances on microbial growth (Part 2)
03:25:33 Species and taxonomy
03:32:33 Biodiversity within a community
03:40:50 Investigating diversity
03:47:30 Topic 5 - Energy Transfers in and between organisms (A-Level only)
03:48:13 Required Practical 7 - Use of chromatography to investigate the pigments isolated from leaves of different plants
03:53:09 Chloroplast Structure and Adaptations
03:56:08 Photosystems and pigments
03:59:13 Photosynthesis
04:07:21 Required Practical 8 - Investigation into the effect of a named factor on the rate of dehydrogenase activity in extracts of chloroplasts
04:16:12 Respiration
04:32:40 Required Practical 9 - Investigation into the effect of a named variable on the rate of respiration of cultures of single-celled organisms
04:36:22 Energy transfers in ecosystems
04:50:27 The nutrient cycle
05:06:35 Topic 6 - Organisms respond to changes in their internal and external environments (A-Level only)
05:07:35 Stimuli, both internal and external lead to a response
05:27:47 Required Practical 10 - Investigation into the effect of an environmental variable on the movement of an animal using either a choice chamber or a maze
05:49:10 Control of heart rate
05:52:38 Chemoreceptors and pressure receptors
05:53:28 Nervous coordination and skeletal muscles
06:29:13 Homeostasis
06:56:04 Required Practical 11 - Production of a dilution series of a glucose solution
06:59:42 Osmoregulation
07:10:52 Topic 7 - Genetics, populations, evolution and ecosystems (A-Level only)
07:12:08 Inheritance
07:41:16 The Hardy-Weinberg principle
07:49:46 Variation and Natural Selection
08:05:06 Ecosystems, populations and communities
08:18:27 Population sampling - Required Practical
08:33:07 Population estimation by mark-release-recapture
08:37:14 Succession
08:52:04 Conservation of habitats
09:01:26 Topic 8 - The control of gene expression (A-Level only)
09:02:57 Gene mutations
09:12:20 Stem cells
09:24:16 Transcriptional factors and gene expression
09:31:36 RNAi
09:35:08 Epigenetics
09:50:26 Gene Expression and Cancer
10:09:56 Genomes
10:18:02 Recombinant DNA
10:39:28 PCR
10:52:03 Genetic screening
10:54:01 Genetic fingerprinting

[yaboyyoob]

aint no way its 11 hours long and im here complaining with gcse biology in an hour

[diamando]

Just commenting here to boost this in the algorithm for the people it'll help

[chandnirao]

00:01:42 - 00:56:11 Topic 1 - Biological Molecules (55 mins)
00:56:11 - 02:05:46 Topic 2 - Cells (1hr 9 mins)
02:05:46 - 03:00:00 Topic 3 - Organisms exchange substances with their environment (55 mins)
03:00:00 - 03:47:30 Topic 4 - Genetic information, variation and relationships between organisms (47 mins)
(A level Only)
03:47:30 - 05:06:35 Topic 5 - Energy Transfers in and between organisms (1hr 19 mins)
05:06:35 - 07:10:52 Topic 6 - Organisms respond to changes in their internal and external environments (2hrs 4 mins)
07:10:52 - 09:01:26 Topic 7 - Genetics, populations, evolution and ecosystems (1hr 51 mins)
09:01:26 - 11:06:37 Topic 8 - The control of gene expression (2hrs 5 mins)

[benwest]

Unit 1: Biological Molecules (Watch: 00:00:00 - 00:56:11)
00:01:42 – Biological Molecules
00:02:22 – Bonding in Biological Molecules
00:03:51 – Monomers and Polymers
00:06:47 – Carbohydrates
00:16:51 – Lipids
00:21:09 – Proteins
00:24:36 – Biuret Test for Proteins (RP1)
00:25:09 – Protein Structures
00:30:02 – Enzymes
00:45:23 – Nucleotides
00:46:59 – RNA
00:48:04 – DNA Replication
00:49:32 – ATP (Adenosine Triphosphate)
00:51:35 – Water
00:54:36 – Inorganic Ions
Unit 2: Cells (Watch: 01:06:46 - 01:57:28)
01:06:46 – Structure of Viruses
01:11:21 – Types of Microscopes
01:20:21 – Separating Cell Components
01:22:01 – The Cell Cycle
01:27:05 – Preparation of Stained Squashes of Root Tips (RP2)
01:30:21 – Binary Fission in Prokaryotic Cells
01:32:07 – Cell Recognition and the Immune System
01:36:07 – Production of a Dilution Series for Water Potential (RP3)
01:37:27 – Osmosis
01:41:21 – Membrane Permeability (RP4)
01:42:20 – Diffusion
01:50:47 – Antigens
01:52:11 – Phagocytosis
01:53:14 – Lymphocytes
01:55:50 – Antibodies
01:57:28 – Vaccines and Immunity
Unit 3.1 and 3.2: Surface Area to Volume Ratio and Gas Exchange (Watch: 02:06:35 - 02:36:05)
02:06:35 – Surface Area to Volume Ratio (3.1)
02:11:26 – Gas Exchange (3.2)
02:23:51 – Digestion (background for gas exchange)
02:36:05 – Mass Transport (links to gas exchange and circulation)
Unit 4.6: Biodiversity (Watch: 03:25:33 - 03:32:33)
03:25:33 – Species and Taxonomy
03:32:33 – Biodiversity within a Community
Unit 5: Energy Transfers in Organisms (Watch: 03:47:30 - 05:06:35)
03:47:30 – Energy Transfers Overview
03:48:13 – Chromatography of Pigments (RP7)
03:53:09 – Chloroplast Structure and Adaptations
03:56:08 – Photosystems and Pigments
03:59:13 – Photosynthesis
04:07:21 – Dehydrogenase Activity (RP8)
04:16:12 – Respiration
04:32:40 – Respiration Rates in Cultures of Microorganisms (RP9)
04:36:22 – Energy Transfers in Ecosystems
04:50:27 – The Nutrient Cycle
Unit 6.1: Stimuli and Response (Watch: 05:07:35 - 05:52:38)
05:07:35 – Stimuli and Responses Overview
05:27:47 – Investigation of Animal Movement (RP10)
05:49:10 – Control of Heart Rate
05:52:38 – Chemoreceptors and Pressure Receptors
Unit 6.2: Nervous Coordination and Skeletal Muscles (Watch: 05:53:28)
05:53:28 – Nervous Coordination and Skeletal Muscles
Unit 7.4: Populations in Ecosystems (Watch: 08:18:27 - 08:37:14)
08:18:27 – Population Sampling (RP10)
08:33:07 – Population Estimation (Mark-Release-Recapture)
08:37:14 – Succession

[Apsjbfkks]

I finished my a levels last year this stuff is still haunting me

[BiaB]

I'm about to start a level biology this September and I wanted a rough idea of what I'm about to get into! Thank you!!

[J.]

At 5:51:55 shouldn’t it be the opposite? The parasympathetic is acetyl choline and sympathetic is Noradrenaline?? My textbook and class notes say that?? Pls reply back to me if possible pls miss and clarify this 🙏🙏

[VaultYT.]

Currently sat here trying to take in this info. I’m not doing a level bio until September but I might as well do some pre-work before summer so I understand the lessons!

[sharna]

single handedly carrying my private candidate a level bio and chem exams this year, ur a godsend 🙏❤

[Jasminerice...]

This is amazing I'm preparing for year 11 and my teacher said to watch some videos since a level bio is harder and this is so good, you talk slowly so we can understand and the drawings help so much i will 100% be returning during the year!!!!

[fairytunes]

for mitosis mnemonic i used "I Picked My Apples Today" 🍎🍏

[acid]

i dont even need this but thanks for your efforts!

[scorpius]

14:22 Shouldn't the cellulose diagram be made of alternating beta glucose molecules? Or have I just misread the diagram please?

[Jack.A.S]

Finally finished. I'm taking a combined science access course soon so not sure how much of this will be needed but I want to get used to all core topics. Thanks a lot for your hard work on the channel! Next, chemistry

[eegum_cookum]

i wonder if there’s actually a dude who missed out on all the content and resorted to this video

[allie]

This has been so helpful thank you!! I like how its thorough and succinct. Im watching on 2x speed 5 days before the exam 😭

[Cookie-opkc]

Hello, just out of interest I have bought ur gcse maths predicted papers, to what extent are they accurate?Just as accurate as the science ones you made? Please let me know.

[FransinaErastus]

Thank you so much I believe in passing with an A*

[psychoticrexx]

biology ones in gcse were 50 minutes and now a level 11 hours holy shit 😭😭

[maryamsadiq]

Can I use this video CIE A Level Biology?