Skip to content

General Science: Biology, Health & Nutrition

The human body, diseases, nutrition, biotechnology and Bangladesh's public health system

20 lessons 20 lesson quizzes 100 questions 2h 6m Certificate
BiologyHuman physiologyPublic healthNutritionBiotechnology

What you'll learn

  • Explain cell structure, genetics, plant biology and the major human body systems
  • Identify the causes, symptoms and prevention of communicable and non-communicable diseases
  • Describe balanced nutrition, vitamins and deficiency diseases accurately
  • Summarise Bangladesh's public health system and its achievements
  • Answer biology and health questions in the preliminary, written and viva confidently

About this course

Biology supplies a large share of the General Science marks, and questions about the human body, diseases, vitamins and public health appear in almost every government exam in Bangladesh. The viva board also expects candidates to speak sensibly about dengue, nutrition, immunisation and health services. This course covers biology in twenty lessons: classification and the cell, genetics and evolution, plant biology, then the human body system by system — digestion, circulation, respiration, excretion, nervous, endocrine, skeletal and reproductive. It then turns to microorganisms and immunity, communicable and non-communicable diseases, nutrition and deficiency disorders, Bangladesh's public health system, biotechnology and modern medicine, and finally exam strategy. Every lesson is written so the same material answers a one-mark MCQ and a ten-mark written question.

Course content

20 lessons20 quizzes1 final exam2h 6m total
01Characteristics and Classification of Living OrganismsWhat makes something alive, and how biologists organise the living world. Quiz · 5 6 min02The CellThe basic unit of life, its organelles and how cells divide. Quiz · 5 6 min03Genetics and HeredityDNA, Mendel's laws, blood groups and genetic disorders. Quiz · 5 7 min04Evolution, Adaptation and BiodiversityHow species change over time, and why variety matters. Quiz · 5 6 min05Plants: Structure, Photosynthesis and ReproductionHow plants make food, move water and reproduce — with the facts examiners ask. Quiz · 5 6 min06Nutrition and the Digestive SystemHow food is broken down, absorbed and used by the body. Quiz · 5 6 min07Blood and the Circulatory SystemThe heart, blood vessels, blood components and common circulatory diseases. Quiz · 5 6 min08Respiration and the Respiratory SystemBreathing, gas exchange and the diseases of the lungs. Quiz · 5 6 min09Excretion, Kidneys and the Urinary SystemHow the body removes waste and balances water and salts. Quiz · 5 6 min10The Nervous System and Sense OrgansThe brain, nerves, reflexes and the five senses. Quiz · 5 6 min11The Endocrine System and HormonesGlands, hormones and the disorders caused when they fail. Quiz · 5 6 min12The Skeleton, Muscles and MovementBones, joints, muscles and the disorders that affect movement. Quiz · 5 6 min13Reproduction and Human DevelopmentReproductive systems, pregnancy, and maternal and child health. Quiz · 5 6 min14Microorganisms, Immunity and VaccinesBacteria, viruses, the immune system and how vaccination works. Quiz · 5 7 min15Communicable DiseasesThe infectious diseases that matter most in Bangladesh, and how they are controlled. Quiz · 5 7 min16Non-communicable Diseases and LifestyleThe rising burden of heart disease, diabetes, cancer and mental illness. Quiz · 5 7 min17Food, Nutrition and Deficiency DiseasesA balanced diet, the vitamins and minerals, and the deficiencies that still affect Bangladesh. Quiz · 5 7 min18Bangladesh's Public Health SystemHow health services are organised, what they have achieved and where they fall short. Quiz · 5 7 min19Biotechnology, Genetics and Modern MedicineGenetic engineering, medical technology and the ethical questions they raise. Quiz · 5 6 min20Exam Strategy for Biology and HealthHow to revise this large subject efficiently and answer written and viva questions well. Quiz · 5 6 minFinal exam30 random questions from the whole course · 60% to pass 30 min

Who this course is for

  • BCS preliminary and written candidates
  • Health, nursing and teaching job candidates
Keep going

More in BCS Preparation

View track