L.1 Structures & Fxns of Living Organisms Flashcards
Basic unit of life; smallest structural unit of an organism that is capable of functioning independently
cell
Cells that have a distinct, membrane-bound nucleus
Eukaryotic Cells
Something that gives nourishment; food
fuel
a specialized subunit (cell organ) within a cell that has a specific function and is usually separately enclosed with its own lipid layer
organelle
Cells without a nucleus
Prokaryotic Cells
The process in which nutrients are converted into useful energy in a cell
Respiration
An organic compound that is a volatile, flammable, colorless liquid that can be consumed by humans and in other forms used in thermometers, as a solvent, and as a fuel
Alcohol
The decisions an individual makes when choosing what foods to eat
Dietary Habits
Process by which food is broken up physically, by action of teeth, and chemically, by action of enzymes, and converted into a substance suitable for absorption into the body.
Digestion
processed from the leaves of a plant, it can be consumed, used as a drug, pesticide, and in some medicines
tobacco product
Any chemical or mixture that may be harmful to the environment and to human health if inhaled, swallowed, or absorbed through the skin
Toxic Substance
drug that kills bacteria and cures bacterial infections and diseases
antibiotics
domain of prokaryotes, some of which cause human diseases. Lacks a nucleus.
Bacteria
An abnormal functioning of the body or part of body, sometimes caused by infections.
Disease
kingdom in the domain Eukarya that includes molds, mushrooms, and yeasts
Fungi
cell of species that is harmed in a parasitic relationship
host
The study of organisms which are too small to see without a microscope.
Microbiology
an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other’s expense
parasite
Methods of reducing the likelihood of contracting a disease. Methods of prevention depend on the organism that causes the disease.
Prevention
The response to a disease provided through medical professionals
Treatment
An organism composed of one cell only
Unicellular
A particle that cannot independently reproduce yet contains genetic information and can evolve. They may cause disease in the host cell/organism
Virus
Describing a substance that kills microbes in an effort to prevent the spread of a disease
Antimicrobial
Occurs when the incidence rate of a disease is higher than expected in a certain area
Epidemic
The study of microscopic organisms
Microbiology
An epidemic that spreads across a large area, like a continent
Pandemic
Disease causing organism; “germ”
Pathogen
Mechanisms or organisms (excluding humans) that spread diseases without showing symptoms
Vector
