B1: Characteristics of Living Organism Flashcards
What are the seven characteristics of living things?
Movement, respiration, sensitivity, growth, reproduction, excretion, and nutrition
Define movement?
An action by an organism or part of an organism, causing a change of position or place.
Define respiration?
A chemical reaction in cells that breakdown nutrient molecules and release energy for metabolism.
Define sensitivity?
The ability to detect, or sense stimuli in the internal or external environment, and to make appropriate responses.
Define growth?
A permanent increase in size and dry mass by an increase in cell number or cell size or both.
Define reproduction?
The processes that makes more of the same kind of organism.
Define excretion?
Removal of the waste products of metabolism (chemical reactions in cells including respiration), toxic materials, and substances in excess of requirements from organisms.
Define nutrition?
Taking in of materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds and ions and usually need water.