Test Paper- Edexcel iGCSE Biology Questions with Guaranteed Pass Solutions Updated.

Test Paper- Edexcel iGCSE Biology
Questions with Guaranteed Pass
Solutions 2025-2026 Updated.
Processes of living organisms - Answer Movement, reproduction, sensitivity, control, growth,
respiration, excretion, nutrition



Types of living organisms - Answer Animal, Plant, Bacteria, Protoctist, Fungi, Virus



Structure of Animal Cells - Answer Cell Membrane, Cytoplasm, Nucleus



Characteristics of Animals - Answer Multicellular, feed on other organisms, carbohydrates as
glycogen



Example of Animals - Answer Human or Mosquitos



Invertebrates - Answer Animals which lack a backbone. E.g. Worms



Vertebrates - Answer Animals with a backbone. E.g. Humans



Structure of Plant Cells - Answer Cellulose cell wall, Cell membrane, Cytoplasm, Chloroplasts,
Sap Vacuole, Nucleus



Characteristics of Plants - Answer Multicellular, contain chloroplasts to carry out
photosynthesis, cellulose cell walls, carbohydrates as starch or sucrose



Example of Plants - Answer Flowering plants: maize, herbaceous legumes: peas



Structure of Fungi - Answer Chitin cell wall, cell membrane, cytoplasm, vacuole, nucleus



Characteristics of Fungi - Answer Multicellular or unicellular, hyphae structures, no
photosynthesis, nutrition by secreting digestive enzymes on dead organisms, carbohydrates as
glycogen



Example of Fungi - Answer Multicellular: Mushrooms, Unicellular: Yeast

,Characteristics of Protoctists - Answer Microscopic, usually unicellular, can resemble plants
or animals



Example of Protoctists - Answer Amoeba, Chlorella



Structure of Bacteria - Answer Cell wall, cell membrane, capsule, plasmids, nucleoid
chromosome, sphere, rod, or spiral shape



Characteristics of Bacteria - Answer Unicellular, small organisms, circular DNA instead of
nucleus, some can photosynthesis others are saprotrophic feeding



Example of Bacteria - Answer Lactobacillus bulgaricus, Pneumoccus



Structure of Virus - Answer Membrane from host cell, protein coat, DNA or RNA



Characteristics of Virus - Answer Smallest organisms, non cellular, parasitic pathogens



Example of Viruses - Answer Influenza, HIV



Pathogens - Answer Organisms which cause disease, usually fungi or bacteria



Levels of organisation - Answer Organ systems, Organs, tissues, cells, organelles



Organ systems - Answer A group of organs that work together to perform a particular
function



The organ systems - Answer Digestive, respiratory, circulatory, excretory, nervous, hormonal,
reproductive



Organs in the Digestive system - Answer Oesophagus, stomach, intestines



Function of the Digestive system - Answer Digest and absorb food



Organs in the Respiratory system - Answer Lungs and trachea



Function of the Respiratory system - Answer Gas exchange

, Organs in the Circulatory system - Answer Heart and bloods vessels



Function of the Circulatory system - Answer Carry oxygen and food around the body



Organs in the Excretory system - Answer kidney's, bladder, liver



Function of the Excretory system - Answer Remove wastes and toxins



Organs in the Nervous system - Answer Brain, spinal cord, nerves



Function of the Nervous system - Answer Send messages and responses around the body



Function of Skeletal and Muscle systems - Answer Movement, support and protection



Organs in the reproductive system - Answer Ovaries and Testes



Function of reproductive system - Answer Produce an offspring



Tissues - Answer Cells with a similar function that are grouped together



Organs - Answer A group of tissues acting together to perform a particular function



Cells - Answer Structural units of organisms



Organelles - Answer Structures inside cells like cytoplasm and cell membranes



Nucleus - Answer Largest organelle containing chromosomes which carry genetic material



Cell Membrane - Answer thin, flexible barrier around a cell; regulates what enters and leaves
the cell



Cytoplasm - Answer a jellylike fluid inside the cell where the organelles are found