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LE Exam Prep

A study guide for high achieving biology students!

QuestionAnswer
ATP an energy source
abiotic non-living chemical and physical factors in the environment
biosphere all the ecosystems on Earth
Active transport the process of moving particles from low to high concentration
Allele 1 type of expression for a different form of a gene
A,G,C,T basic building blocks for a gene
Carrying capacity the number of identical species that the environment can support.
disease indicates a failure in homeostasis
enzyme biological catalyst that speeds up a reaction
guard cells a gas exchange pore in plants
food chain describes the eating relationships between species within an ecosystem
Hormone chemicals released from cells that affects its target cell.
Nucleus the command centre of a cell
Testosterone male reproductive hormone. Produced in the testes.
Replication the copying of DNA
Respiration Gasous exchange in organisms. Composed of inspiration and expiration.
Lysosome recycles wastes materials in the cell.
mitochondria powerhouse of a cell
photosynthesis a process that converts carbon dioxide into glucose
Zygote a single-celled embyro
Electrophoresis a process that seperates DNA molecues into fragments
Placenta a tube that supplies nutrition from the mother to the developing fetus.
Created by: biologyrocks
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