Characteristics of living organisms Flashcards
What is Mrs H Nerg
Movement, reproduction, sensitivity, homeostasis, nutrition, excretion, respiration, growth
Describe movement
An action by an organism causing a change of position or place
Describe reproduction
The production of new organisms
Describe sensitivity
Ability to sense changes in the environment and to make responses
Describe homeostasis
Maintenance of a constant internal environment, such as body water content and body temperature
Describe growth
Permanent increase in size or mass by an increase in cell number or cell size or both
Describe respiration
The chemical process in which glucose is broken down inside cells releasing energy and producing carbon dioxide and water.
Describe excretion
Removal of waste substances that have been produced from chemical reactions inside the body, such as carbon dioxide ad urea in animals.
Describe nutrition
Means by which living organisms obtain food, which provides energy for vital life processes
What is the equation for a series of chemical reactions that happen in living cells during which glucose is broken down releasing energy and producing carbon dioxide and water?
glucose + oxygen = carbon dioxide + water + energy
What is a chloroplast?
An organelle found in plant cells and some protoctist cells that can capture energy from light for use in photosynthesis
What is a hypha?
A single thread of fungal mycelium
What is a mycelium?
A mass of hyphae that form the body of a fungus
What is a pathogen?
An organism that causes disease in another living organism. Pathogens occur in fungi, bacteria, protoctists and viruses
What is a plasmid?
A small circle of genetic material found in some bacteria in addition to the circular chromosome
