Cell membrane — role?
Controls entry and exit of substances.
Nucleus — function?
Contains genetic material, controls cell activities.
Mitochondria — function?
Produce energy via respiration.
Ribosomes — role?
Synthesise proteins.
Chloroplasts — function?
Carry out photosynthesis in plants.
Cell wall — role?
Provides support and protection.
Mitosis — purpose?
Produces identical daughter cells.
Stem cells — capability?
Divide and differentiate into various cells.
Cell differentiation — process?
Specializes cells for specific functions.
Chromosome replication — occurs?
During cell cycle before division.
Tissues — definition?
Groups of similar cells working together.
Organs — composed of?
Different tissues working as a unit.
Organ systems — example?
Digestive or circulatory systems.
Blood — main components?
Red cells, white cells, platelets, plasma.
Pathogens — types?
Bacteria, viruses, fungi.
Vaccination — purpose?
Stimulates immunity by introducing antigens.
Photosynthesis — main process?
Converts light energy into glucose.
Respiration — energy release?
Breaks down glucose to produce ATP.
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1. What is the primary purpose of tissues in the organization of the body?
2. Who is credited with proposing the germ theory of disease?
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