Biology 101: A Complete O Level Course

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Do you have difficulty in understanding basic biology concepts Have you taken online courses with inadequate opportunity to test your understanding of concepts Then this is certainly a course for you to enroll in.This course will serve as a revision guide for High School Biology or Human and Social Biology students. The contents that are presented were mainly based on the CXC syllabus, effective 2015. However, the content is also suitable for students who are studying for GCSE Biology or similar "O" level examinations. This is a comprehensive Biology course that touches on almost all of the contents that students must be able to understand for their examinations. More than 90% of the content is presented in short videos (not longer than 10 minutes) that concisely explains the concepts. Additional contents are provided in the form of notes that can be ed in the resource section. These notes are intended to extend student's understanding of the concepts. It is expected that students table themselves, to spend at least 60 minutes a week to review the contents in order to be fully prepared for their examination. Besides viewing the videos and reading the additional notes, it is expected that students complete all the quiz. A practice exam was also added to test your knowledge of the entire course. I am certain that after completing this course, you would be able to fully prepare for your examinations. *Please note that this course will continuously be updated with additional lectures, or edited lectures.

Overview

Section 1: Introduction

Lecture 1 Welcome

Lecture 2 Some useful information

Lecture 3 Introduction to "Biology"

Lecture 4 Classification-the basics

Lecture 5 Characteristics of living organisms

Lecture 6 Cells- Structure and Function Part 1

Lecture 7 Cells: Part 2 (with sample questions)

Lecture 8 Organization in living organisms-Notes

Lecture 9 Chromoplast

Lecture 10 Transport In and Out of cells

Section 2: Ecology

Lecture 11 Symbiosis

Lecture 12 Ecological Study Techniques

Lecture 13 Factors affecting growth of Natural Populations

Lecture 14 Impact of Human Activity on the Environment

Lecture 15 Soil

Lecture 16 Nitrogen Cycle

Lecture 17 Carbon Cycle

Lecture 18 Food chain and Food web

Section 3: Nutrition and Digestion

Lecture 19 Photosynthesis

Lecture 20 Biological Molecules: Macronutrients

Lecture 21 Biological Molecules: Vitamins

Lecture 22 Biological Molecules: Minerals and Malnutrition

Lecture 23 Eating Disorders

Lecture 24 Enzymes

Lecture 25 Human Teeth-Structure and Function

Lecture 26 Teeth- Additional information

Lecture 27 Digestive System

Lecture 28 Extra! Digestive system of Pigs and Rabbits

Lecture 29 Extra!! Digestion in Ruminants (Cows,Sheep etc)

Section 4: Respiratory System

Lecture 30 Structure and adaptation of Respiratory system

Lecture 31 Breathing and Gas Exchange

Lecture 32 Types of Respiration

Lecture 33 Oxygen Debt

Lecture 34 Surface Area/Volume Ratio

Lecture 35 Energy From Food

Lecture 36 Cigarette Smoking

Section 5: Transport system in Humans and Plants

Lecture 37 Blood cells

Lecture 38 Blood Vessels

Lecture 39 Heart-Structure and Function

Lecture 40 Heartbeat and Blood Pressure

Lecture 41 Atherosclerosis

Lecture 42 NEW! External and Internal Structure of Plants

Lecture 43 NEW! External and Internal Structure of Plants Part-2

Lecture 44 Plant Transport: Xylem

Lecture 45 Plant Transport: Phloem

Lecture 46 Movement of water

Lecture 47 Transpiration

Lecture 48 Lymphatic System-Notes

Section 6: Excretion

Lecture 49 Kidney Structure and Nephron

Lecture 50 Urea formation, Plant Excretion, Homeostasis

Lecture 51 Osmoregulation, Food Storage

Section 7: Sensitivity

Lecture 52 Nervous System Part 1- Response of Plants and invertebrates

Lecture 53 Nervous System Part 2- Brain, Neurons and Neurotransmitters

Lecture 54 Nervous System Part 3- Reflex Action, Q&A

Lecture 55 Human Eye Part 1

Lecture 56 Endocrine System: Hormones and their function

Lecture 57 Human Eye-Part 2 (accommodation/eye defects)

Lecture 58 Endocrine System: Diabetes

Section 8: Skeletal System

Lecture 59 Skeletal System: Movement, Structure

Lecture 60 Skeletal System: Joints and Movement

Lecture 61 Notes: Movement, Function of skeletal system

Lecture 62 Notes: Types of Joints

Section 9: Reproduction: Plants and Humans

Lecture 63 Growth And Development

Lecture 64 Plant Reproduction-Sexual Reproduction

Lecture 65 NEW! Asexual Reproduction: Natural vegetative, and Artificial vegetative

Lecture 66 NEW! Budding (Asexual Reproduction)

Lecture 67 Plant Reproduction : Dispersal, Fruits, Geation

Lecture 68 Reproductive Structures of Humans

Lecture 69 Advanced: Male Reproductive System

Lecture 70 Menstrual Cycle

Lecture 71 Fertilization, Pregnancy and Birth

Lecture 72 Fertilization- More details

Lecture 73 Sexually Transmitted Infections

Lecture 74 Birth Control

Lecture 75 Abortion

Section 10: Genetics

Lecture 76 History of Genetics

Lecture 77 Introduction to Genetics

Lecture 78 DNA

Lecture 79 Chromosomes and Genes

Lecture 80 Mendel's cross and Genetic Diagrams

Lecture 81 Genetic Diseases: Sickle celled anemia and Haemophilia

Lecture 82 Blood Group Inheritance and Sample question with Answer

Lecture 83 Mitosis

Lecture 84 Meiosis

Lecture 85 Variation

Lecture 86 Biotechnology, Genetic Eeering & Gene therapy

Lecture 87 Protein Synthesis

Lecture 88 Natural Selection

Lecture 89 Natural Selection-Notes

Section 11: Disease and Immune System

Lecture 90 Introduction

Lecture 91 Types of Disease

Lecture 92 Health and Social Well-being

Lecture 93 Vectors and Dengue

Lecture 94 Malaria

Lecture 95 Additional Resource

Lecture 96 Immune System- Innate Immunity

Lecture 97 Immune System -Adaptive Immunity

Lecture 98 COVID-19

Lecture 99 Effect of COVID-19 on the human body-W.E.F video

Section 12: SBA: Lab guidelines-CSEC STUDENTS

Lecture 100 Scientific Method and PD lab Guide

Section 13: Model Answers for CXC Examination Questions

Lecture 101 Sample Question with Answer: Excretion

Lecture 102 Reproduction: Questions with sample answers

Lecture 103 Genetics: Questions and Answers (Paper 1)

Lecture 104 Genetics: Questions and Answers (Paper 2)

Section 14: Practice Test

Lecture 105 Practice Test Introduction

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