Definition of Life Flashcards
Define excretion
The elimination of waste products of metabolism from a cell,tissue or organ
Define heredity
The natural law or property of organisms whereby their offspring have various physical and mental traits of their parents or ancestors
Define metabolism
All chemical processes in living cells
Define invertebrate
Animal without a backbone or spinal column
Define anabolic
A chemical reaction which joins small molecules to make larger,more complex ones
Define species
Group of organisms that can interbreed and produce viable, fertile offspring
Define genes
Units of heredity found on a chromosome - codes for a protein
Define photosynthesis
The process in plants that makes food using light energy
Define respiration
The controlled release of energy from food within the cells of an organism
Define vertebrate
Animal having a backbone or spinal column
Define catabolic
A chemical reaction which breaks down a large molecule into simpler ones
Define cell
Building block of life
Give an example of a catabolic reaction
Respiration
Give an example of an anabolic reaction
Photosynthesis
Define unicellular
Made up of one cell
Define multicellular
Made up of multiple cells
Define homeostasis
The maintenance of a constant internal environment
Define metabolism
All chemical reactions in body
What are some characteristics of life?
- Reproduction
- Growth and Development
- Response to stimuli
- Homeostasis
- Metabolism
