Characteristics of Living Organisms and Cells Flashcards
What does MRS C GREN stand for?
Movement, Respiration, Sensitivity, Control, Growth, Reproduction, Excretion, Nutrition
Describe the common features shown by eukaryotic organisms: plants, animals, fungi, and protoctists.
They have a true nucleus, membrane-bound organelles, and linear DNA.
Describe the common features shown by prokaryotic organisms such as bacteria.
They lack a true nucleus, have no membrane-bound organelles, and possess circular DNA.
What is a pathogen?
A pathogen is an organism that causes disease.
What types of organisms can be pathogens?
Pathogens may include fungi, bacteria, protoctists, or viruses.
Describe the levels of organisation in organisms.
Organelles, cells, tissues, organs, systems