Upgrade to remove ads
Biology chapter 1
Terms in this set (77)
What do all living organisms have?
Cellular Organization, contain similar chemical, use energy, respond to their surrounding, grow and develop, and reproduce
What is an organism?
Any living thing
What is a cell?
Basic unit of life of structures in an organism
What is a unicellular organism?
An organism made up of one cell.
What is a multicellular organism?
An organism made of many cells
What is a stimulus?
A change in organism's surroundings
What is a response?
An action or behavior an organism takes when it reacts to a stimulus
What is development?
Produces a more complex organism
What do organism do when they grow and develop?
Their cells use energy to make new cells
How do all living things arise?
Who set up an experiment to show that rotting meat does not produce flies?
Who carried out an experiment that showed bacteria could be produced only from bacteria?
What did Pasteur's and Reid's experiments do?
They helped people understand that living things could not come from non living things
What basic needs do all living things need?
Food, water, living space, and stable internal conditions
What are autotrophs?
Organisms that make their own food
What are heterotrophs?
organisms that cannot make their own food
What does water do for us to live?
Water dissolves body chemicals and carries the chemicals through the body
Why do we need stable internal conditions?
cells to work
Why do we need food?
What is the nucleus?
a dense area in a cell that contains nucleic acids
What is a prokaryote?
A cell without a nucleus
What is a eukaryote?
cell with a nucleus
Why do we need living space?
What is a fossil?
A vestige of ancient organism that has been preserved in rock or other material
What is classification?
Grouping things based on their similarities
What is taxonomy?
The scientific study of how living things are classified
Who devised a system of naming organism in which each organism has a unique two-part scientific name?
What is the first part of the name?
What is a species?
A group of similar organisms that can mate with each other and produce fertile offspring.
How many levels are there to classify organisms?
What is the highest level in the classification system?
What is the lowest level in the classification system?
What is a field guide?
Books with illustrations that highlight diffrences between similar looking organisms
What is evolution?
the process of change over time
How do scientists learn about the evolution of a living thing?
Scientists compare its body structure to other living things and compare the chemical makeup of it cells
What is binomial nomenclature?
two word naming system
What is reproduction?
the production of offspring
How do biologists classify organisms today?
Look at chemicals found in the cell
What characterizes bacteria?
Unicellular prokaryotes than can be autotrophs or heterotrophs
Where do archaea live?
harsh environments such as hot springs
What characterizes archaea?
Single celled eukaryotic organisms that can either be heterotrophs or autotrophs
What is the main difference between bacteria and archaea?
They have a different chemical makeup and different structures
What kingdoms are in the domain Eukarya?
Protists, fungi, plants, or animals
What is a protist?
Any eukaryote that can't be classified as a fungi, plant, or animal
What type of cell do protists have?
Single cell organism
What eukaryotic kingdoms make food?
Protists and Plants
What eukaryotic kingdoms are not able to make food?
Protists, fungi, and animals
What were the most abundant gases in the Ancient Earth?
Nitrogen, Vapor, Carbon Dioxide, and methane
How did oxygen form on Earth?
As cells made food, they gave off oxygen, the oxygen built up into the atmosphere over 100 million years
How are organisms placed into domain and kingdoms?
Based on cell type, their ability to make food, and the number of cells in their bodies
What is a virus?
A tiny nonliving thing that can enter a living feel and reproduce inside the cell
What are characteristics of virus's?
Not living, viruses cannot make or use food
What is a parasite?
Organism that lives in or on a host, causing it harm
What is a host?
An organisms that supplies energy to a virus or another organism
What two basic parts does a virus have?
A protein coat and a inner core made up of genetic material
What does the generic material in a virus do?
It has instructions for making new viruses
What does the protein coat in a virus do?
It protects the genetic material and help the virus attach to the cells that the virus will infect
What is bacteria?
It is a single celled organism that do not have nucleus
What is a cytoplasm?
A gel like substance inside the cell membrane where ribosomes are located
What is binary fission?
A single cell reproduces two identical cells by duplicating everything inside the cell and then dividing into two
What do virus infect?
Mammals, plants, and bacteria
What happens when viruses infect bacteria?
It is called bacteriophage
Who was the first person to develop a classification system?
What is a hidden virus?
The virus may stay inactive for a long time
What is a active virus?
The virus multiplies as soon as it enters the cell
What is respiration?
Breaking down food to release its energy
How do bacteria reproduce?
Plenty of food, the right temperature, and other sutbale conditions
What is a flagellum?
A long whiplike structure that's helps a cell to move
How do bacteria without a flagellum move?
They are carried with some or water
What is asexual reproduction?
it involves only one individual or parent
What is conjugation
One bacterium transfers the genetic material to the other bacterium
How does a virus take over a cell?
It instructs the feel to produce the viruses proteins and genetic material
What involves bacteria?
Oxygen, food production, environmental recycling, cleanup, health maintenance, medicine production
What is pasteurization?
Where food is heated to a temperature that is high enough to kill most harmful bacteria
What is Domain Eukarya?
Consists of all living things contains a nuclei
How many domain are there?
What is domain bacteria?
The most numerous of domains on Earth
YOU MIGHT ALSO LIKE...
Q3 test 1 vocab
Characteristics, needs and classification of livin…
What is Life without pictures?
science chapter one lesson one and two
OTHER SETS BY THIS CREATOR
unidad 4 vocab 🌊🐳🦋
chapter 5 quiz