Study of life Flashcards
What are common characteristics shared by all living things?
Growth and development
Regulation
Reproduction
Responsiveness
Metabolism
Sum of all reactions that occur within the body
Anabolism
Small molecules join to form larger molecules
Catabolism
Large molecules broken down into smaller molecules
Energy
The capacity to do work.
How do plants get energy?
They produce it.
How do animals get energy?
They consume it by eating plants or other animals
Autotrophs or producers
Make their own food
Heterotrophs or consumers
Depend on food energy in autotrophs
Decomposers
Heterotrophs that break down decaying material for energy
Growth
Increase in mass of an organism
Development
Increased specialization
Movement
Can be for an organism
Can be for an individual cell
Responsiveness
Ability to sense and react to stimuli
Stimuli
Change in the environment
In response, cells adjust to try and maintain a stable environment
Homeostasis
Maintaining (regulating) a stable internal environment
Allow complex organization and efficiency
Reproduction
Process by which new living organisms are produced
Asexual and Sexual
Chemical level
Atoms and molecules
Cellular level
Forms based on interactions between atoms and molecules
Organismal level
Interactions between cells
Population level
Interactions between organisms
Atom
Smallest unit of matter
Molecule
Two or more joined atoms
Macromolecules
Many atoms joined together
Organelle
Membrane bound compartments within cells
Cell
Compartment covered by a thin membrane
All living things are made up of one or more cells
Basic unit of structure and organization in life
Organismal level
Tissue
Organ
Organ system
Multicelled organisms
Tissue
Organized group of cells interacting in a specialized activity
Organ
Structural unit made up of two or more tissues interacting in some task
Organ system
Organs interacting physically and chemically in some tasks
Multicelled organisms
Living individual made up of different types of cells, tissues, and organs
Population level
Population
Ecosystem
Community
Biosphere
Population
Group of individuals of the same species occupying the same area
Ecosystem
The living and no living components of an area
Community
All the populations in the same area
Biosphere
The global ecosystem: the parts of the planet and its atmosphere
Taxonomy
The naming and classification of living things based on similarities and differences
3 domains
Bacteria
Archaea
Eukarya
Four smaller divisions (kingdoms) within this domain
What are Archaea and Bacteria
Prokaryotic
What is prokaryotic
Primitive
Unicellular
No membrane bound components
Bacteria
Some helpful some harmful
Archaea
Extremophiles
What are Eukarya
Eukaryotic
What is Eukaryotic
More advanced Unicellular and multicellular Nucleus and other organelles Includes four kingdoms Protista Fungi Plantar Animalia
What is biology?
The scientific study of life.
What are the four kingdoms
Protista
Fungi
Plants
Animals
Protista
Kingdom by exclusion
Mostly unicellular
Some autotrophs some heterotrophs
Fungi
Multicellular Decomposers
Plants
Multicellular autotrophs
Animals
Multicellular heterotrophs