Specification points
WJEC GCSE Biology 3400QS
176 points in 4 topics, with WJEC's codes and titles.
Codes and titles are read by a script from WJEC's published specification and have not been checked by a person. What each point covers is in the specification itself: WJEC’s specification.
SE Scientific enquiry skills
- SE1 Benefits and challenges of scientific enquiry
- SE2 Scientific models
- SE3 Informed decisions from scientific enquiry
- SE4 Designing a method of enquiry
- SE5 Collecting, recording and presenting primary data
- SE6 Gather and present secondary data, while evaluating data
- SE7 Analysing data
- SE8 Forming conclusions and evaluating approaches
1 Unit 1: Cells, Organ Systems and Ecosystems
- 1.1 Cells and Movement Across Cell Membranes
- 1.1(a) Structure of animal and plant cells
- 1.1(b) The use of a light microscope to view animal and plant cells
- 1.1(c) Specialised cells
- 1.1(d) Levels of organisation
- 1.1(e) Diffusion and the cell membrane
- 1.1(f) Diffusion as a passive process
- 1.1(g) Osmosis
- 1.1(h) Active transport
- 1.1(i) Enzymes
- 1.1(j) Enzyme structure
- 1.1(k) The active site and the lock and key model
- 1.1(l) Temperature, pH and enzyme activity
- 1.2 Respiration and the Respiratory System in Humans
- 1.2(a) Aerobic respiration
- 1.2(b) Anaerobic respiration
- 1.2(c) The respiratory system
- 1.2(d) The function of mucus and cilia in the respiratory system
- 1.2(e) Inspiration and expiration
- 1.2(f) The bell jar model of breathing
- 1.2(g) Structure of an alveolus
- 1.2(h) Inspired and expired air; gas exchange
- 1.2(i) Effects of smoking
- 1.3 Digestion and the Digestive System in Humans
- 1.3(a) The need for digestion
- 1.3(b) Digestion of large insoluble molecules
- 1.3(c) Food tests for starch, glucose and protein
- 1.3(d) Digestive enzymes
- 1.3(e) Structure of the digestive system
- 1.3(f) Roles of organs in digestion and absorption
- 1.3(g) Peristalsis
- 1.3(h) Bile
- 1.3(i) Absorption in the small intestine
- 1.3(j) Fate of digested products
- 1.3(k) A balanced diet
- 1.3(l) Energy content of foods
- 1.3(m) Health effects of excess sugar, fat and salt
- 1.4 Circulatory System in Humans
- 1.4(a) Phagocytes and red blood cells
- 1.4(b) Functions of blood components
- 1.4(c) The heart as a muscular pump
- 1.4(d) Coronary vessels
- 1.4(e) Arteries and veins
- 1.4(f) Structure of the heart
- 1.4(g) Blood flow through the heart
- 1.4(h) Double circulatory system
- 1.4(i) Capillaries and exchange with cells
- 1.4(j) Structure of arteries, veins and capillaries
- 1.4(k) Risk factors for cardiovascular disease and the effects of cardiovascular disease
- 1.4(l) Treatments for cardiovascular disease: advantages and disadvantages
- 1.5 Plants and Photosynthesis
- 1.5(a) Importance of photosynthesis
- 1.5(b) Conditions and limiting factors for photosynthesis
- 1.5(c) Investigating photosynthesis
- 1.5(d) Uses of glucose in plants
- 1.5(e) Structure of a leaf
- 1.5(f) Importance of water to plants
- 1.5(g) Root hairs and water uptake
- 1.5(h) The uptake of mineral salts by root hairs by active transport
- 1.5(i) Xylem and transpiration
- 1.5(j) Environmental conditions and transpiration rate
- 1.5(k) Phloem and translocation
- 1.5(l) Plant nutrient deficiencies
- 1.6 Ecosystems, Nutrient Cycles and Human Impact on the Environment
- 1.6(a) Food chains and food webs
- 1.6(b) Energy use and loss along food chains
- 1.6(c) Pyramids of numbers and biomass
- 1.6(d) Efficiency of energy transfer between trophic levels
- 1.6(e) Microorganisms and decay
- 1.6(f) Nutrients released by decay
- 1.6(g) The carbon cycle
- 1.6(h) The nitrogen cycle
- 1.6(i) Balancing food production and wildlife
- 1.6(j) Intensive farming methods
- 1.6(k) Indicators of pollution
- 1.6(l) Heavy metals and pesticides in food chains
- 1.6(m) Eutrophication
2 Unit 2: Variation, Homeostasis and Micro-organisms
- 2.1 Classification and Biodiversity
- 2.1(a) Range of living organisms and their groups
- 2.1(b) Classification and scientific naming
- 2.1(c) Adaptations for survival
- 2.1(d) Resources and population size
- 2.1(e) Biodiversity
- 2.1(f) Using quadrats
- 2.1(g) Principles of sampling
- 2.1(h) The principles of capture/recapture techniques including simple calculations on estimated population size
- 2.1(i) Biological control and alien species
- 2.2 Cell Division and Stem Cells
- 2.2(a) Chromosomes as linear arrangements of genes, found in pairs in body cells
- 2.2(b) The functions of cell division by mitosis and meiosis
- 2.2(c) Outcomes of mitosis and meiosis
- 2.2(d) Uncontrolled mitosis and cancer
- 2.2(e) Stem cells
- 2.2(f) Adult and embryonic stem cells
- 2.3 DNA and Inheritance
- 2.3(a) Structure of DNA
- 2.3(b) Complementary base pairing and the triplet code
- 2.3(c) Genetic profiling
- 2.3(d) Comparing DNA samples by genetic profiling
- 2.3(e) Benefits and issues of DNA profiling
- 2.3(f) Genes and alleles
- 2.3(g) Genetic terms
- 2.3(h) Single gene inheritance and Punnett squares
- 2.3(i) Multiple-gene inheritance
- 2.3(j) Sex determination in humans
- 2.3(k) Genetic engineering
- 2.4 Variation and Evolution
- 2.4(a) Variation: genetic and environmental
- 2.4(b) Sexual and asexual reproduction
- 2.4(c) Mutations
- 2.4(d) Inherited conditions: cystic fibrosis
- 2.4(e) Heritable variation as the basis of evolution
- 2.4(f) Adaptation and survival
- 2.4(g) Natural selection
- 2.4(h) Ongoing evolution: resistance
- 2.4(i) The human genome and medicine
- 2.5 Response and Regulation
- 2.5(a) Sense organs and receptors
- 2.5(b) The nervous system
- 2.5(c) Reflex actions
- 2.5(d) The reflex arc
- 2.5(e) Structure and function of the eye
- 2.5(f) Need to regulate internal conditions
- 2.5(g) Hormones
- 2.5(h) Control of blood glucose
- 2.5(i) Diabetes
- 2.5(j) Structure of the skin
- 2.5(k) Temperature regulation
- 2.5(l) Negative feedback
- 2.5(m) Lifestyle, alcohol and drug abuse
- 2.5(n) Phototropism and gravitropism
- 2.6 Role of Kidney in Homeostasis
- 2.6(a) Functions of the kidneys
- 2.6(b) The human excretory system
- 2.6(c) Structure of the kidney
- 2.6(d) Structure of a nephron
- 2.6(e) Filtration and reabsorption in the kidney
- 2.6(f) Urine and its excretion
- 2.6(g) Kidney regulation of water content
- 2.6(h) Dialysis
- 2.6(i) Kidney transplants
- 2.6(j) The advantages and disadvantages of the use of dialysis and transplants
- 2.7 Micro-organisms and their Applications
- 2.7(a) Aseptic techniques
- 2.7(b) Bacterial colonies and sample size
- 2.7(c) Temperature and bacterial growth
- 2.7(d) Industrial production of penicillin
- 2.8 Disease, Defence and Treatment
- 2.8(a) Harmless microorganisms and pathogens
- 2.8(b) Types of pathogen; structure of bacteria and viruses
- 2.8(c) Communicable diseases and their spread
- 2.8(d) HIV/AIDS, chlamydia and malaria
- 2.8(e) Body defences against disease
- 2.8(f) Antigens and antibodies
- 2.8(g) Vaccination and parental decisions
- 2.8(h) How vaccines work
- 2.8(i) Memory cells
- 2.8(j) Antibiotics
- 2.8(k) Antibiotic resistance and MRSA
- 2.8(l) Preventing conditions with drugs and therapies
- 2.8(m) Side effects and testing of new drugs
- 2.8(n) Discovery and development of new medicines
- 2.8(o) Producing monoclonal antibodies
- 2.8(p) Medical uses of monoclonal antibodies