chapter 1.1 Flashcards
1.1 & 1.2 (32 cards)
Biology
Is the Scientific study of life.
Living things (2 answers)
a. Both living & non-living things are made up of the same chemical element
B.obey/follow the same physical & chemical laws that govern everything in the universe.
What two characteristics do living things have?
They multiply & reproduce
What do living things need?
Energy
What are the (4) building blocks of cells?
- Carbohydrates
- Lipids
- Nucleic Acid
- Proteins
What does the nucleus contain? (2 things)
- DNA
- RNA
What is an Atom?
The smallest unit of an element. It’s composed of electrons, neutrons & protons
What is a Molecule?
2 or more atoms of the same of different element
What’s a cell?
Is the basic unit of structure & function of all living things
What’s a tissue?
A group of cells with a common structure & function
What’s a Organ?
Composed of tissues functioning together for a specific task
What’s an Organ System?
Composed of several organs working together
What’s a organism?
An individual
What’s a Population?
Organisms of the same species in a particular area
What’s a community?
Interacting populations in a particular area
What’s an ecosystem?
Community plus environment
Name the nonliving components of cells? (2)
- Atoms
2.Molecules
What are organisms organized into? (2)
- Population
- Communities
What are the highest levels of biological organization? (2)
- Ecosystem
- Biosphere
Energy
The ability to work
Metabolism
is all the chemical reactions that occur in a cell
What fuel do you use to make atp?
Glucose
Homeostasis
The ability to maintain a stable internal environment
Stimuli
helps an organism react to changes in its environment
(ex. the presence of food)
