Contents

Characteristics and classification of living organisms

Organisation of the organism

Cells under the microscope

Movement into and out of cells

Biological molecules

Food tests

Enzymes

Enzymes

Plant nutrition

Human nutrition

Transport in plants

Transport in animals

Diseases and immunity

Pathogens and disease spreadBeing prepared
Immunity and vaccinationBeing prepared

Gas exchange in humans

Gas exchange and breathing

Respiration

Respiration

Excretion in humans

Excretion and the kidneys

Coordination and response

Drugs

Antibiotics

Reproduction

Asexual and sexual reproductionBeing prepared
Flowers and pollinationBeing prepared
Fertilisation and germinationBeing prepared
Human reproductionBeing prepared
Puberty and the menstrual cycleBeing prepared
Sexually transmitted infectionsBeing prepared

Inheritance

Chromosomes, genes and allelesBeing prepared
From gene to proteinBeing prepared
Mitosis and meiosisBeing prepared
Monohybrid crossesBeing prepared
Family trees, blood groups and sex linkageBeing prepared

Variation and selection

Variation and mutationBeing prepared
Adaptation and selectionBeing prepared

Organisms and their environment

Food chains and websBeing prepared
Ecological pyramids and energyBeing prepared
Energy flow and nutrient cyclesBeing prepared
PopulationsBeing prepared

Human influences on ecosystems

Food supply and habitat lossBeing prepared
PollutionBeing prepared
ConservationBeing prepared

Biotechnology and genetic modification

BiotechnologyBeing prepared
Genetic modificationBeing prepared

Part 2 of 3

Page 02

Hot, windy or humid

identify

Try it yourself

A pupil wants to find out how moving air affects the rate of water uptake by a leafy shoot. Which plan is a fair test?

identify: name or select.

Choose one answera.One run in still air, then one run with the fan on, timed as soon as it is switched onb.The same shoot: three runs in still air, then three with the fan on after a few minutesc.One shoot timed in still air, and a fresh shoot of the same plant with the fan ond.The fan and a heater switched on together, so the change in the rate is easier to see

Your saved work

Answers, earlier attempts and your Pause and check notes stay in this browser. Export a copy to keep, to move to another device or to hand to your teacher. Importing a copy keeps your current answers and adds earlier attempts.

Import saved work

Scope and sources

Cambridge IGCSE Biology 0610 · 2026–2028 v3 · Original learning materials.

Transpiration as the loss of water vapour from leaves (8.3.1); evaporation from the surfaces of the mesophyll cells into the air spaces and diffusion out through the stomata (8.3.2); investigating the effects of temperature and wind speed (8.3.3); the internal surface area and the size and number of stomata (Supplement 8.3.4); the transpiration pull (Supplement 8.3.5); the effects of temperature, wind speed and humidity explained (Supplement 8.3.6); wilting (Supplement 8.3.7). The distances in the experiment come from a teaching model.

Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.

Official Cambridge syllabus