Unit 1 - Chapter 1 Flashcards
What is an organism?
A living thing.
What do subatomic particles include?
Protons, neutrons, and electrons.
What is an atom?
The basic unit of matter.
What is a molecule?
Atoms joined by chemical bonds.
What are macromolecules?
Small subunit molecules joined together to form large molecules.
What is a cell?
The basic unit of life.
What is a species?
A group of similar organisms that can interbreed to produce viable and fertile offspring.
What does cell theory state?
Organisms are made of one or more cells, and that cells are made when a preexisting cell divides to form two new cells.
What is unicellular?
If a living thing is made of a single cell.
What is multicellular?
If an organism is made of more than one cell.
What is the plasma membrane?
A barrier that separates the inside of a cell from the outside world.
What is DNA?
A library that stores all the information needed to build a cell.
What is metabolism?
All the chemical reactions of an organism.
What are anabolic reactions?
Consume energy to build complex molecules from simple ones.
What are catabolic reactions?
Release energy from complex molecules by breaking them down.
What is homeostasis?
The ability of an organism to maintain a stable internal environment.
What is form referred to as?
Anatomy.
What is function referred to as?
Physiology.
What are adaptations?
Characteristics organisms have that help them survive and compete against others.
What is evolution?
The genetic change in a species over time to adapt to the environment.
What is natural selection?
The physical environment and other organisms influence which members of a population survive and reproduce.
What is heredity?
The ability of an organism to pass on characteristics to offspring.
What does binomial mean?
Two names; the two names are called genus and species.
What is the classification of organisms from broadest to specific?
Kingdom, phylum, class, order, family, genus, species.
