chapter 1.1 Flashcards
1.1 & 1.2
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)
What do genes deteremine?
The characteristics of an organism
What are genes made up of?
DNA
Whats does DNA provide?
Genetic blueprint to make all the protein in your body
What is mutation?
change into the DNA
What is Adaptation
any kind of modification that makes an organism better able to function
What is evolution?
change in a population of an organism to become more suited to the environment.
What causes adaption?
DNA
What does mutation lead to? (2)
- Adaption
- Evolution
