BIOL 240 - exam #1 || WITH COMPLETE SOLUTIONS.
symbiosis correct answers Refers to the partnership (usually long term) that is established
between 2 or more organisms
3 kinds of symbiosis correct answers mutualism, commensalism, parasitism
Pathogen correct answers anything that causes disease
infectious disease correct answers disease caused by a microorganism that disrupts normal
body functions
emergent infectious disease correct answers an infectious disease previously not described or
not been common for at least the prior 20 years; often originates from pathogens that
normally infect animal hosts but jump to human hosts due to rapid mutation
3 domains of life correct answers Bacteria, Archaea, Eukarya
Bacteria correct answers prokaryotic (lacks nucleus); most are harmless or helpful but some
are pathogens; uses a variety of energy and carbon
Eukarya correct answers domain consisting of all organisms that have a nucleus; includes
protists, plants, fungi, and animals
Archaea correct answers Domain of unicellular prokaryotes (lack nucleus) that have cell
walls that do not contain peptidoglycan.
Differs from bacteria in metabolic pathways, molecular structure and genetics; widespread
and can live in extreme environments; not pathogenic to humans
Protists correct answers eukaryotes that cannot be classified as animals, plants, or fungi.
Diverse,genetically distant group; vary widely in size, appearance, habitat; includes algae and
protozoa
Protists correct answers diverse, genetically distant group; vary widely in size, appearance,
habitat; includes algae and protozoa
Fungi correct answers not photosynthetic, cell walls are made of chitin
Helminths correct answers multicellular parasitic worms
Viruses correct answers acellular (not made of cells); fits in between living and nonliving;
genetic instructions (DNA or RNA) in a protein coat; requires a cell to act as host for
reproduction
Robert Hooke (1665) correct answers Discovered cells
Anton van Leeuwenhoek (1673) correct answers First to observe living cells.
Performs first experiments on microscopic organisms w/ aid of microscope
symbiosis correct answers Refers to the partnership (usually long term) that is established
between 2 or more organisms
3 kinds of symbiosis correct answers mutualism, commensalism, parasitism
Pathogen correct answers anything that causes disease
infectious disease correct answers disease caused by a microorganism that disrupts normal
body functions
emergent infectious disease correct answers an infectious disease previously not described or
not been common for at least the prior 20 years; often originates from pathogens that
normally infect animal hosts but jump to human hosts due to rapid mutation
3 domains of life correct answers Bacteria, Archaea, Eukarya
Bacteria correct answers prokaryotic (lacks nucleus); most are harmless or helpful but some
are pathogens; uses a variety of energy and carbon
Eukarya correct answers domain consisting of all organisms that have a nucleus; includes
protists, plants, fungi, and animals
Archaea correct answers Domain of unicellular prokaryotes (lack nucleus) that have cell
walls that do not contain peptidoglycan.
Differs from bacteria in metabolic pathways, molecular structure and genetics; widespread
and can live in extreme environments; not pathogenic to humans
Protists correct answers eukaryotes that cannot be classified as animals, plants, or fungi.
Diverse,genetically distant group; vary widely in size, appearance, habitat; includes algae and
protozoa
Protists correct answers diverse, genetically distant group; vary widely in size, appearance,
habitat; includes algae and protozoa
Fungi correct answers not photosynthetic, cell walls are made of chitin
Helminths correct answers multicellular parasitic worms
Viruses correct answers acellular (not made of cells); fits in between living and nonliving;
genetic instructions (DNA or RNA) in a protein coat; requires a cell to act as host for
reproduction
Robert Hooke (1665) correct answers Discovered cells
Anton van Leeuwenhoek (1673) correct answers First to observe living cells.
Performs first experiments on microscopic organisms w/ aid of microscope
