Youtor
Estruch Biology (updated 2025-03-13)
![GCSE Biology Endocrine System amp Hormones 59 [upl. by Sweet]](img.php?img=imgidBvpPCn1rwsw)
![A level biology STATISTICS help Student T test Worked examplesexam questions amp critical analysis [upl. by Heger]](img.php?img=imgidH0cJqE3fZz8)
Duration: 9:58
68K views | Mar 2, 2020
68K views | Mar 2, 2020
![Light Independent Reactions of Photosynthesis Alevel LIR The Calvin Cycle [upl. by Deonne662]](img.php?img=imgidKM61NKYvphQ)
Duration: 10:47
105.3K views | Jul 30, 2020
105.3K views | Jul 30, 2020
![Using STANDARD DEVIATION to analyse data in Alevel Biology Help with evaluate the conclusion qs [upl. by Siloum]](img.php?img=imgidop3GPJYpcvk)
Duration: 9:39
57.9K views | Mar 9, 2020
57.9K views | Mar 9, 2020
![Monomers Polymers and Monosaccharides Alevel biology Biological Molecules topic [upl. by Ashjian]](img.php?img=imgid7nJ_bVqc3OM)
Duration: 5:54
133.2K views | Oct 15, 2019
133.2K views | Oct 15, 2019
![GENETIC DIVERSITY amp NATURAL SELECTIONALEVELHelp understanding directional amp stabilising selection [upl. by Tseng]](img.php?img=imgid0W__hCcXjYA)
Duration: 8:53
79.8K views | Feb 15, 2020
79.8K views | Feb 15, 2020
![PROTEIN SYNTHESIS Alevel Biology Transcription translation and premRNA modifications [upl. by Netfa]](img.php?img=imgidApfyeaex0fs)
Duration: 10:33
141.4K views | Aug 26, 2020
141.4K views | Aug 26, 2020
![Heart Structure Alevel Biology Atria ventricles blood vessels semivalves and AV valves [upl. by Baoj]](img.php?img=imgidriDOGOPt8pA)
Duration: 13:06
101.2K views | Jan 13, 2020
101.2K views | Jan 13, 2020
![ATP Alevel biology Immediate source of energy Structure and function [upl. by Webber148]](img.php?img=imgidFWm0557kxrU)
Duration: 8:29
59.7K views | Aug 4, 2020
59.7K views | Aug 4, 2020
![WATER Alevel Biology The importance of water structure and function [upl. by Llenart]](img.php?img=imgidSS2Fv3506Tg)
Duration: 10:23
80.4K views | Aug 7, 2020
80.4K views | Aug 7, 2020
![Alevel Biology POLYSACCHARIDES Biological MoleculesLearn these carbohydrates structure function [upl. by Haynes]](img.php?img=imgidHPumgvSPww8)
Duration: 10:14
115.6K views | Oct 14, 2019
115.6K views | Oct 14, 2019
![TRANSPORT ACROSS MEMBRANES Alevel Bio Simple amp facilitated diffusion osmosis amp active transport [upl. by Tavie]](img.php?img=imgidEo-m_p1qlUI)
Duration: 11:20
107.5K views | May 4, 2020
107.5K views | May 4, 2020
![Synapses Neuromuscular Junction and Summation Cholinergic and inhibitory synapses [upl. by Kachine]](img.php?img=imgidGs56diOJGpQ)
Duration: 15:45
91.4K views | Oct 2, 2020
91.4K views | Oct 2, 2020
![EPIGENETICS and GENE EXPRESSION Alevel Biology How methyl and acetyl groups control transcription [upl. by Nannette]](img.php?img=imgidvO0yDhQFdAM)
Duration: 7:28
78.3K views | Feb 9, 2020
78.3K views | Feb 9, 2020
![PROTEIN STRUCTURE Amino acid structures Primary secondary tertiary and quaternary proteins [upl. by Byrne]](img.php?img=imgid8d2Edz46UF4)
Duration: 11:30
120.7K views | Nov 9, 2019
120.7K views | Nov 9, 2019
![Alevel Biology Structure of HAEMOGLOBIN and Oxyhaemoglobin dissociation curves [upl. by Aiuqes364]](img.php?img=imgidb21cU28eHdc)
Duration: 15:33
112.2K views | Dec 27, 2019
112.2K views | Dec 27, 2019
![How to Sample in Ecology Accurately represent the population size REQUIRED PRACTICAL 12 [upl. by Ronile875]](img.php?img=imgidQEDIYJqwA6g)
Duration: 16:58
59.7K views | Jun 22, 2020
59.7K views | Jun 22, 2020
![CANCER Alevel Biology Benign and malignant tumours and how tumours develop [upl. by Aicnetroh208]](img.php?img=imgid3zNHePAAraI)
Duration: 13:20
47.4K views | Jun 29, 2020
47.4K views | Jun 29, 2020
![Type of GENE MUTATIONS Alevel Biology Do you know the 6 types of gene mutations [upl. by Berta]](img.php?img=imgidi5Q_x7rFsY8)
Duration: 8:59
92.7K views | May 22, 2020
92.7K views | May 22, 2020
![ENZYME ACTION Lock and key compared to Induced Fit Model in lowering activation energy [upl. by Mashe]](img.php?img=imgidkSuB7e_hTgk)
Duration: 7:09
88.8K views | Aug 17, 2020
88.8K views | Aug 17, 2020
![Alevel Biology DISACCHARIDES condensation reactions to create maltose sucrose and lactose [upl. by Nedmac]](img.php?img=imgidJdAv3FPY13w)
Duration: 7:22
82.1K views | Oct 15, 2019
82.1K views | Oct 15, 2019
![NITROGEN CYCLE A level biology AQA Saprobionts nitrogenfixing ammonification amp nitrification [upl. by Ahsan396]](img.php?img=imgid2ifo_UXJnS8)
Duration: 9:07
134.1K views | Mar 16, 2020
134.1K views | Mar 16, 2020
![OXIDATIVE PHOSPHORYLATION Alevel Biology Aerobic respiration Chemiosmotic theory and ETC [upl. by Erdnassac]](img.php?img=imgidgh1GybbRcRU)
Duration: 5:40
121.6K views | Feb 21, 2020
121.6K views | Feb 21, 2020
![How to study cells Microscopes magnification and calibrating the eyepiece graticule [upl. by Otilia]](img.php?img=imgidqtEpAJ7NK_w)
Duration: 18:33
110.3K views | Jan 2, 2020
110.3K views | Jan 2, 2020
![Digestion and Absorption for Alevel Biology Carbohydrates proteins and lipids micelles [upl. by Aromat]](img.php?img=imgidiNuLw_9aSeE)
Duration: 12:39
157.7K views | May 15, 2020
157.7K views | May 15, 2020
![STEM CELLS Totipotent pluripotent multipotent and unipotent Learn how iPS cells are made [upl. by Aggarwal]](img.php?img=imgidYb92uVjFB_0)
Duration: 9:37
98K views | May 25, 2020
98K views | May 25, 2020
![Ecological Succession Alevel biology Primary amp secondary succession ampeach seral stage explained [upl. by Rotow389]](img.php?img=imgidCFGufjjfoC8)
Duration: 13:25
76.1K views | Jul 13, 2020
76.1K views | Jul 13, 2020
![Chi squared in inheritance Using chisquared to prove Mendelian genetics [upl. by Readus]](img.php?img=imgid8LrPbBkflfU)
Duration: 9:19
70.9K views | Sep 16, 2020
70.9K views | Sep 16, 2020
![HUMORAL RESPONSE IMMUNITYB cells plasma cells amp antibodies Agglutination of antibodies amp antigens [upl. by Haibot678]](img.php?img=imgidmrCnPEHFCs4)
Duration: 8:22
110.6K views | Jan 23, 2020
110.6K views | Jan 23, 2020
![DNA REPLICATION Learn the SEMICONSERVATIVE REPLICATION DNA Function of helicase ALevel Biology [upl. by Myles]](img.php?img=imgidQNZmc5aJgSI)
Duration: 7:13
89.5K views | Jan 11, 2020
89.5K views | Jan 11, 2020
