Topic_1_Cell_Biology 27课时3时47分43秒

   免费 3023_Cell_Theory (13:12)

   免费 3024_Cell_Theory_Emergent_Properties_Differentiation (11:11)

   试看 3025_Calculating_Magnification_(IB_Biology) (05:05)

   试看 3026_Measurement_Conversions_(IB_Biology) (09:09)

   试看 3027_Why_are_cells_so_small_Surface_area_to_volume_ratio_(IB_Biology) (15:15)

   3028_Stem_Cells_(IB_Biology) (09:09)

   3029_Functions_of_Life_(2016)_IB_Biology (04:04)

   3030_Therapeutic_Stem_Cell_Uses_(2016)_IB_Biology (08:08)

   3031_Ethics_of_Therapeutic_Stem_Cell_Uses_(2016)_IB_Biology (07:07)

   3032_Prokaryotic_and_Eukaryotic_Cells_(IB_Biology) (15:15)

   3033_Structure_and_Function_of_Organelles_(2016)_IB_Biology (08:08)

   3034_Microscope_Resolution_and_Magnification_(IB_Biology) (04:04)

   3035_The_Plasma_Membrane_(Cell_Membrane)_(IB_Biology) (12:12)

   3036_Models_of_membrane_structure_(IB_Bio)_(2015) (09:09)

   3037_Drawing_the_fluid_mosaic_model_(2016)_IB_Biology (03:03)

   3038_Amphipathic_Properties_of_Phospholipids_(2016)_IB_Biology (03:03)

   3039_Transport_Across_Membranes_(IB_Biology) (13:13)

   3040_Membrane_Proteins_and_Functions_(2016)_IB_Biology (05:05)

   3041_Structure_of_Sodium_Potassium_Pump_(2016)_IB_Biology (04:04)

   3042_Structure_and_Function_of_Potassium_Channel_(2016)_IB_Biology (04:04)

   3043_Osmosis_(IB_Biology)_(2015) (09:09)

   3044_Measuring_Osmolarity_(IB_Bio)_(2015) (04:04)

   3045_Origin_of_Cells_(IB_Bio)_(2015) (12:12)

   3046_Cell_Cycle_(IB_Biology) (05:05)

   3047_Mitosis_(IB_Biology) (14:14)

   3048_Mitosis_Extras_and_Cytokinesis_(IB_Bio)_(2015) (06:06)

   3049_Cyclins_tumors_and_smoking_(IB_Bio)_(2015) (13:13)

Topic_2_Molecular_biology 42课时4时37分9秒

   3050_Intro_to_Molecular_Biology_(2016)_IB_Biology (03:03)

   3051_Metabolism_Intro_(2016)_IB_Biology (03:03)

   3052_Condensation_and_Hydrolysis_(IB_Biology) (06:06)

   3053_Falsifying_the_Vital_Force_2016_IB_Biology (03:03)

   3054_Chemical_Elements_IB_Biology (06:06)

   3055_Properties_of_Water_IB_Biology (17:17)

   3056_Properties_of_Water_and_Benefits_2016_IB_Biology (06:06)

   3057_Water_as_Blood_Tranport_2016_IB_Biology (04:04)

   3058_Polarity_of_Water_and_Hydrogen_Bonds_2016_IB_Biology (05:05)

   3059_Comparing_Water_and_Methane_2016_IB_Biology (04:04)

   3060_Carbohydrates_Lipids_Proteins_IB_Biology (12:12)

   3061_Carbohydrate_Structure_2016_IB_Biology (13:13)

   3062_Molecular_visualization_of_polysaccharides_IB_Bio_2015 (03:03)

   3063_Intro_to_Lipids_2016_IB_Biology (03:03)

   3064_Fatty_Acids_and_Health_2016_IB_Biology (05:05)

   3065_Lipids_through_Condensation_2016_IB_Biology (02:02)

   3066_Types_of_Fatty_Acids_2016_IB_Biology (05:05)

   3067_Body_Mass_Index_BMI_IB_Bio_2015 (03:03)

   3068_Proteins_Overview_IB_Bio_2015 (09:09)

   3069_Proteins_and_Proteomes_IB_Bio_2015 (05:05)

   3070_Denaturation_IB_Bio_2015 (07:07)

   3071_Enzymes_Introduction_IB_Biology (08:08)

   3072_Factors_that_affect_Enzyme_Activity_IB_Biology (07:07)

   3073_Enzymes_in_Technology_IB_Biology (05:05)

   3074_DNA_Structure_IB_Biology_SL (10:10)

   3075_DNA_Replication_SL_IB_Biology (10:10)

   3076_Transcription_and_Translation_Part_1_Central_Dogma_IB_Biology (11:11)

   3077_Transcription_and_Translation_Part_2_Central_Dogma_Continued_IB_Biology (10:10)

   3078_Transcription_and_Translation_Part_3_Central_Dogma_Continued_IB_Biology (08:08)

   3079_Cellular_Respiration_Part_1_Intro_IB_Biology_SL (07:07)

   3080_Photosynthesis_Part_1_Intro_IB_Biology (11:11)

   3081_Photosynthesis_Part_8_Measuring_Photosynthesis_IB_Biology (05:05)

   3082_Controlling_Limiting_Factors_2016_IB_Biology (08:08)

   3083_Chromatography_2016_IB_Biology (04:04)

   3084_Photosynthesis_and_the_Atmosphere_2016_IB_Biology (03:03)

   3085_Using_Yeast_in_Baking_and_Brewing_2016_IB_Biology (02:02)

   3086_Why_Bother_with_Anaerobic_Respiration_2016_IB_Biology (02:02)

   3087_Analysis_of_Respirometer_Experiments_2016_IB_Biology (03:03)

   3088_Respirometer_Experiments_and_Ethics_2016_IB_Biology (05:05)

   3089_Production_of_Human_Insulin_in_Bacteria_2016_IB_Biology (04:04)

   3090_Meselson_and_Stahl_Experiment_2016_IB_Biology (10:10)

   3091_Elucidation_of_DNA_Structure_2016_IB_Biology (02:02)

Topic_3_Genetics 35课时3时29分55秒

   3092_Chromosomes_genes_and_alleles_IB_Biology (09:09)

   3093_Gene_Mutations_and_Sickle_cell_Anemia_IB_Biology (11:11)

   3094_Meiosis_Part_1_IB_Biology (10:10)

   3095_Meiosis_Part_2_IB_Biology (06:06)

   3096_Meiosis_Extras_IB_Biology (06:06)

   3097_Karyotyping_IB_Biology (07:07)

   3098_Genetic_Crosses_Introduction_IB_Biology (08:08)

   3099_Genetic_Crosses_Simple_Monohybrid_Cross_IB_Biology (06:06)

   3100_Genetic_Crosses_The_Test_Cross_IB_Biology (04:04)

   3101_Genetic_Crosses_Sex_Linkage_IB_Biology (11:11)

   3102_Genetic_Crosses_Multiple_Alleles_Blood_Types_IB_Biology (09:09)

   3103_How_to_Solve_Pedigree_Diagram_Questions_IB_Biology (08:08)

   3104_Biotechnology_Intro_and_Gel_Electrophoresis_IB_Biology (13:13)

   3105_Human_Genome_Project_IB_Biology (03:03)

   3106_Gene_Transfer_IB_Biology (05:05)

   3107_Genetically_Modified_Organisms_IB_Biology (06:06)

   3108_Reproductive_Cloning_IB_Biology (04:04)

   3109_Rooting_Experiment_2016_IB_Biology (03:03)

   3110_Mendel_the_Man_2016_IB_Biology (04:04)

   3111_Risks_to_Monarch_Butterflies_2016_IB_Biology (03:03)

   3112_Natural_ways_of_cloning_2016_IB_Biology (02:02)

   3113_Cystic_Fibrosis_and_Huntington_s_Disease_2016_IB_Biology (06:06)

   3114_Hiroshima_2016_IB_Biology (04:04)

   3115_Assessing_scientific_risk_2016_IB_Biology (03:03)

   3116_Chernobyl_2016_IB_Biology (04:04)

   3117_Causes_of_mutation_2016_IB_Biology (04:04)

   3118_Animals_can_be_cloned_at_embryo_stage_2016_IB_Biology (04:04)

   3119_Comparing_Genome_Sizes_2016_IB_Biology (03:03)

   3120_Comparing_Chromosome_Numbers_2016_IB_Biology (04:04)

   3121_Cairn_s_Technique_2016_IB_Biology (03:03)

   3122_Prokaryotic_vs._Eukaryotic_Chromosomes_2016_IB_Biology (04:04)

   3123_Non_disjunction_and_Down_Syndrome_2016_IB_Biology (03:03)

   3124_Gene_sequencers_2016_IB_Biology (03:03)

   3125_Databases_for_comparing_genes_2016_IB_Biology (05:05)

   3126_Comparing_the_number_of_genes_2016_IB_Biology (05:05)

Topic_4_Ecology 5课时58分17秒

   3127_Communities_and_Ecosystems_IB_Biology (19:19)

   3128_The_Greenhouse_Effect_IB_Biology (15:15)

   3129_Populations_IB_Biology (10:10)

   3130_Classification_IB_Biology (06:06)

   3131_Mesocosms_2016 (05:05)

10课时1时10分58秒

   3132_Evolution_IB_Biology_Part_1 (14:14)

   3133_Evolution_Part_2_IB_Biology (06:06)

   3134_Evolution_Part_3 (06:06)

   3135_Sources_of_Variation_for_Evolution_by_Natural_Selection_2015 (04:04)

   3136_Classification_of_Biodiversity_IB_Biology (05:05)

   3137_Reclassification_of_Figworts_IB_Biology_2015 (04:04)

   3138_Species_and_Speciation_IB_Biology (11:11)

   3139_Polyploidy_leads_to_speciation_IB_Biology (04:04)

   3140_Cladistics_IB_Biology (09:09)

   3141_Comparison_of_Allele_Frequencies_of_Geographically_Isolated_Populations_IB_Biology (03:03)

Topic_6_Human_physiology 22课时3时15分49秒

   3142_Digestion_Part_1 (09:09)

   3143_Digestion_Part_2 (11:11)

   3144_The_Transport_System (18:18)

   3145_Intro_to_Disease_IB_Biology (11:11)

   3146_Defense_Against_Disease_IB_Bio_SL (12:12)

   3147_HIV_and_AIDS_IB_BIology (06:06)

   3148_Gas_Exchange (10:10)

   3149_Nervous_System_Introduction (06:06)

   3150_The_Nervous_System_Part_2 (04:04)

   3151_Nervous_System_Part_3 (06:06)

   3152_Nervous_System_Part_4 (03:03)

   3153_Homeostasis_Part_1_IB_Biology (06:06)

   3154_Homeostasis_Part_2_IB_Biology (11:11)

   3155_Reproductive_Systems_and_the_Menstrual_Cycle_IB_Biology (16:16)

   3156_Transport_Cardiac_Cycle_SA_Node_IB_Bio_2015 (08:08)

   3157_Transport_Harvey_and_CHD_IB_Bio_2015 (10:10)

   3158_HIV_AIDS_Antibiotics_Florey_and_Chain_IB_Bio_2015 (07:07)

   3159_Disease_First_and_Second_Lines_of_Defense (10:10)

   3160_Causes_of_blood_clot_formation_IB_Bio_2015 (03:03)

   3161_Gas_Exchange_Extras_IB_Bio_2015 (09:09)

   3162_Lung_cancer_and_emphysema_IB_Bio_2015 (06:06)

   3163_Treatments_for_Type_I_and_Type_II_Diabetes_IB_Biology_2014 (04:04)

Topic_7_Nucleic_acids 25课时2时43分38秒

   3164_More_on_DNA_Structure_IB_Bio_HL_Details (13:13)

   3165_DNA_Replication_HL_Details_IB_Biology (11:11)

   3166_Details_of_Transcription_Part_1_IB_Bio_HL (07:07)

   3167_Details_of_Transcription_Part_2_IB_Bio_HL (07:07)

   3168_Translation_tRNA_molecules_IB_Biology (06:06)

   3169_Translation_Ribosome_Structure_IB_Biology (07:07)

   3170_Translation_The_Central_Dogma_HL_IB_Biology (13:13)

   3171_Protein_Structure_HL_IB_Biology (07:07)

   3172_Intramolecular_Bonding_in_Proteins_IB_Biology (09:09)

   3173_Environmental_Influence_on_Traits_2016_IB_Biology (01:01)

   3174_tRNA_activating_Enzyme_2016_IB_Biology (06:06)

   3175_Free_vs._Bound_Ribosomes_2016_IB_Biology (02:02)

   3176_Post_Transcriptional_Modification_2016_IB_Biology (04:04)

   3177_Methylation_and_Epigenetics_2016_IB_Biology (03:03)

   3178_Bioinformatics_2016_IB_Biology (03:03)

   3179_Modification_of_RNA_in_eukaryotes_2016_IB_Biology (05:05)

   3180_Nucleosomes_Regulate_Transcription_2016_IB_Biology (08:08)

   3181_Polysomes_2016_IB_Biology (02:02)

   3182_Promoters_and_Transcription_2016_IB_Biology (04:04)

   3183_Tandem_Repeats_2016_IB_Biology (01:01)

   3184_Wilkins_and_Franklin_2016_IB_Biology (04:04)

   3185_Hershey_and_Chase_Experiment_2016_IB_Biology (08:08)

   3186_Sanger_Sequencing_2016_IB_Biology (14:14)

   3187_Functions_of_DNA_Base_Sequences_2016_IB_Biology (06:06)

   3188_Utilization_of_Molecular_Software_2016_IB_Biology (03:03)

Topic_8_Metabolism_cell_respiration_and_photosynthesis 21课时2时11分48秒

   3189_Cellular_Respiration_Part_2_Glycolysis_IB_Biology (06:06)

   3190_Cellular_Respiration_Part_3_The_Link_Reaction_IB_Biology (05:05)

   3191_Cellular_Respiration_Part_4_The_Krebs_Cycle_IB_Biology (08:08)

   3192_Cellular_Respiration_Part_5_The_Electron_Transport_Chain_IB_Biology (09:09)

   3193_Cellular_Respiration_Part_6_Chemiosmosis_and_Summary_IB_Biology (07:07)

   3194_Structure_of_a_Mitochondrion_IB_Biology (03:03)

   3195_Photosynthesis_Part_2_Light_dependent_reactions_Non_cyclic_IB_Biology (07:07)

   3196_Photosynthesis_Part_3_Cyclic_Photophosphorylation_IB_Biology (07:07)

   3197_Photosynthesis_Part_4_The_Calvin_Cycle_IB_Biology (05:05)

   3198_Photosynthesis_Part_5_Limiting_Factors_in_Photosynthesis_HL_IB_Biology (08:08)

   3199_Photosynthesis_Part_6_Action_vs_Absorption_Spectrum_IB_Biology (06:06)

   3200_Photosynthesis_Part_7_Structure_of_Chloroplast_IB_Biology (03:03)

   3201_Activation_Energy_with_Enzymes_IB_Biology (03:03)

   3202_Allosteric_Enzyme_Inhibition_IB_Biology (07:07)

   3203_Enzyme_Inhibition_IB_Biology (08:08)

   3204_Databases_for_Anti_malarial_Drugs_2016_IB_Biology (05:05)

   3205_Calvin_s_Experiments_2016_IB_Biology (09:09)

   3206_Chemiosmotic_Theory_Paradigm_Shift_2016_IB_Biology (03:03)

   3207_Phosphorylation_2016_IB_Biology (04:04)

   3208_Electron_Tomography_of_Mitochondria_2016_IB_Biology (02:02)

   3209_Calculating_Rates_of_Reaction_2016_IB_Biology (05:05)

Topic_9_Plant_biology 18课时2时10分24秒

   3210_Xylem_Vessels_IB_Bio_2015 (05:05)

   3211_Models_of_Xylem_Transport_IB_Bio_2015 (04:04)

   3212_Transpiration_IB_Biology (10:10)

   3213_Intro_to_transpiration_2016 (04:04)

   3214_Measuring_Transpiration_2016 (05:05)

   3215_Halophytes_2016 (05:05)

   3216_Active_Transport_in_Plants_to_Draw_in_Water_2016 (04:04)

   3217_Phloem_Structure_and_Function_2016 (05:05)

   3218_Phloem_and_Hydrostatic_Gradients_2016 (11:11)

   3219_Measuring_phloem_transport_rates_2016 (02:02)

   3220_Micropropagation_IB_Biology_2015 (07:07)

   3221_Auxins_and_Phototropism_2016 (08:08)

   3222_Growth_in_Plants_Intro_2016 (06:06)

   3223_Photoperiodism_IB_Biology (07:07)

   3224_Reproduction_in_Plants_2016 (13:13)

   3225_Plant_Structure_and_Growth_Modifications_IB_Biology (07:07)

   3226_Transport_in_Plants_IB_Biology (08:08)

   3227_Reproduction_in_Angiospermophytes_IB_Biology (10:10)

Topic_10_Genetics_and_evolution 9课时1时6分9秒

   3228_Mendel_s_2nd_Law_and_Meiosis_IB_Biology (04:04)

   3229_Dihybrid_Crosses_IB_Biology (14:14)

   3230_Gene_Linkage_IB_Biology (09:09)

   3231_Gene_Linkage_Practice_Question_IB_Biology (06:06)

   3232_Polygenic_Inheritance_IB_Biology (06:06)

   3233_Morgan_s_Discovery_of_New_Ratios_2016_IB_Biology (06:06)

   3234_Gene_Interaction_2016_IB_Biology (07:07)

   3235_Inheritance_of_Acquired_Characteristics_2016_IB_Biology (05:05)

   3236_Types_of_Natural_Selection_IB_Biology (04:04)

Topic_11_Animal_physiology 43课时4时23分39秒

   3237_Antibody_Production_Notes_Only_IB_Biology (07:07)

   3238_Antibody_Production_Illustration_IB_Biology (10:10)

   3239_Monoclonal_Antibodies_IB_Biology (07:07)

   3240_Blood_clotting_IB_Biology (06:06)

   3241_Types_of_Immunity_IB_Biology (03:03)

   3242_Vaccinations_IB_Biology (08:08)

   3243_Muscles_and_Joints_Part_1_IB_Biology (06:06)

   3244_Muscles_and_Joints_Part_2_IB_Biology (02:02)

   3245_Muscles_and_Joints_Part_3_IB_Biology (09:09)

   3246_Muscle_Contraction_Actin_and_Myosin_IB_Biology (07:07)

   3247_Excretion_and_the_Kidney_Part_1_IB_Biology (08:08)

   3248_Excretion_and_the_Kidney_Part_2_IB_Biology (04:04)

   3249_Excretion_and_the_Kidney_Part_3_IB_Biology (06:06)

   3250_Excretion_and_the_Kidney_Part_4_IB_Biology (06:06)

   3251_Excretion_and_the_Kidney_Part_5_IB_Biology (11:11)

   3252_Excretion_and_the_Kidney_Part_6_IB_Biology (04:04)

   3253_Spermatogenesis_IB_Biology (13:13)

   3254_Oogenesis_IB_Biology (07:07)

   3255_Men_have_testosterone_IB_Biology (02:02)

   3256_The_Sperm_and_the_Egg_IB_Biology (05:05)

   3257_What_happens_after_I_get_pregnant_IB_Biology (11:11)

   3258_The_Structure_and_Function_of_the_Placenta_IB_Biology (10:10)

   3259_The_Process_of_Fertilization_IB_Biology (04:04)

   3260_In_Vitro_Fertilization_IVF_IB_Biology (09:09)

   3261_Urine_testing_IB_Biology (03:03)

   3262_Dehydrated_or_Overhydrated_IB_BIology (04:04)

   3263_Malpighian_Tubules_IB_Biology (05:05)

   3264_Excretion_and_Water_Conservation_IB_Biology (04:04)

   3265_Treatment_of_Kidney_Failure_IB_Biology (04:04)

   3266_Comparing_Blood_in_Renal_Arteries_and_Veins_IB_Biology (05:05)

   3267_Osmoconformers_and_Osmoregulators_IB_Biology (03:03)

   3268_Nitrogenous_Waste_Products_IB_Biology (02:02)

   3269_Use_of_Fluourescence_in_Muscles_IB_Biology (04:04)

   3270_Structure_of_Muscle_Fibers_IB_Biology (03:03)

   3271_Movement_in_Joints_IB_Biology (02:02)

   3272_Muscles_and_Crickets_IB_Biology (06:06)

   3273_Pregnancy_Test_Kits_IB_Biology (03:03)

   3274_Smallpox_and_Epidemiology_IB_Biology (06:06)

   3275_Role_of_Antibodies_IB_Biology (04:04)

   3276_Antigens_and_Allergies_IB_Biology (11:11)

   3277_Declining_Male_Fertility_IB_Biology (03:03)

   3278_Avoiding_Polyspermy_IB_Biology (03:03)

   3279_Internal_vs._External_Fertilization_IB_Biology (02:02)

Option_A_Neurobiology_and_Behavior 32课时2时44分30秒

   3280_Stimulus_Response_Perception_of_Stimuli_IB_Biology (10:10)

   3281_The_Eye_Perception_of_Stimuli_IB_Biology (07:07)

   3282_Processing_Visual_Stimuli_Hermann_Grid_Contra_lateral_processing_IB_Biology (07:07)

   3283_The_Ear_Perception_of_Stimuli_IB_Biology (05:05)

   3284_Innate_vs_Learned_Behavior_E.3_IB_Biology (05:05)

   3285_Neurotransmitters_and_Synapses_E.4_IB_Biology (08:08)

   3286_Further_Studies_of_Behavior_E.6_IB_Biology (08:08)

   3287_The_Human_Brain_Part_1_IB_Biology (09:09)

   3288_The_Human_Brain_Part_2_IB_Biology (03:03)

   3289_Ethology_Part_Three_IB_Biology (04:04)

   3290_Ethology_Part_Two_IB_Biology (04:04)

   3291_Ethology_Part_One_IB_Biology (07:07)

   3292_Drug_Addiction_and_Psychoactive_Drugs_IB_Biology (06:06)

   3293_Ecstacy_Endorphins_Anaesthetics_IB_Biology (06:06)

   3294_Excitation_and_Inhibition_IB_Biology (03:03)

   3295_Memory_IB_Biology (04:04)

   3296_Operant_Conditioning_IB_Biology (02:02)

   3297_Imprinting_IB_Biology (04:04)

   3298_Innate_Behavior_IB_Biology (03:03)

   3299_Reflex_Arc_IB_Biology (02:02)

   3300_Cochlear_Implants_IB_Biology (03:03)

   3301_Photoreceptors_IB_Biology (02:02)

   3302_Homonculus_and_Brain_Size_IB_Biology (03:03)

   3303_Red_Green_Colorblindness_IB_Biology (02:02)

   3304_Olfactory_Receptors_IB_Biology (02:02)

   3305_Development_of_the_CNS_IB_Biology (02:02)

   3306_Autonomic_Nervous_System_IB_Biology (06:06)

   3307_Cerebral_Cortex_and_Functions_IB_Biology (05:05)

   3308_Development_of_Neurons_IB_Biology (04:04)

   3309_Spina_Bifida_and_Using_Animal_Models_IB_Biology (03:03)

   3310_Neurulation_IB_Biology (05:05)

   3311_Strokes_can_reorganize_the_brain_IB_Biology (01:01)

Option_D_Evolution 4课时37分16秒

   3312_Origin_of_Life_on_Earth_IB_Biology (08:08)

   3313_Types_of_Evolution_IB_Biology (08:08)

   3314_Human_Evolution_Option_D_IB_Biology (11:11)

   3315_Hardy_Weinberg_Principle_IB_Biology (09:09)

IB_Biology_Lab_Report_Tips 3课时24分25秒

   3316_How_to_write_an_IB_Biology_Lab_Report_Design (07:07)

   3317_How_to_write_an_IB_Biology_Lab_Data_Analysis (07:07)

   3318_How_to_write_a_lab_report_Conclusion_and_Evaluation (09:09)

IB_Biology_Practice_Questions 16课时1时15分58秒

   3319_Standard_Deviation_Practice_Q (04:04)

   3320_cell_differentiation_practice_q (03:03)

   3321_cell_theory_practice_Q (04:04)

   3322_organelles_practice_q (03:03)

   3323_Proks_vs_Euks_Practice_Q (04:04)

   3324_enzyme_reactions_practice_q (06:08)

   3325_carbs_practice_q (02:57)

   3326_dna_replication_practice_q (03:06)

   3327_water_properties_practice_q (04:00)

   3328_cyclic_photophosphorylation_practice_q (05:17)

   3329_organic_compounds_practice_q (01:15)

   3330_karyotype_practice_q (03:08)

   3331_linked_genes_practice_q (03:46)

   3332_kidney_practice_q (03:04)

   3333_pedigree_practice_q (07:47)

   3334_aki_s_questions (14:36)