B.1 Flashcards
List the seven characteristics of living organisms.
Nutrition Excretion Respiration Sensitivity Reproduction Growth Movement
Define the term nutrition.
The taking in of nutrients which are organic substances and mineral
ions, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them.
Define the term excretion.
The removal from organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements.
Define the term respiration.
The chemical reactions that break down nutrient molecules in living cells to release energy.
Define the term sensitivity.
The ability to detect or sense changes in the environment (stimuli) and to make responses.
Define the term reproduction.
The processes that make more of the same kind of organism.
Define the term growth.
A permanent increase in size and dry mass by an increase in cell number or cell size or both.
Define the term movement.
An action by an organism or part of an organism causing a change of position or place.
