Baer/Grainer Chapter 2 Test Flashcards
6 characteristics of all living things
Have cells Respond to change Reproduce Grow and develop Have DNA Use energy
4 needs of all living things
Water, air, shelter, and food
2 elements that make up water
Hydrogen and oxygen
The most common gas in the air
Oxygen
Maintaining a stable, internal condition
Homeostasis
A change that affects the activity or behavior of an organism
Stimulus/response
Example: shivering when you are cold
Super scientist that studies life
Biologist
Super scientist that studies the CHOPNS elements
Chemist
of cells of living things
More than 1
Example of a response/stimulus
Stimulus: the flu virus enters your body
Response: headache and fever
CHOPNS
Carbon Hydrogen Oxygen Phosphorus Nitrogen Sulfur
5 chemical building blocks
ATP Carbohydrates Nuclei acids Proteins Lipids
Gets energy by breaking down nutrients in dead organisms or animal waste
Decomposer
Examples: mushroom, bacteria, maggots
Makes their own food
Producer
Examples: plants using energy from the sun
Eats other organisms to get food
Consumer
Examples: frog, bear, human
Made of nucleotides, contains all of the information needed for a cell to make proteins
Nucleic acids
Adenosine Triphosphate
ATP
Energy giving nutrients
Carbohydrates
Molecule made of amino acids and is needed to build and repair body structures; regulates processes in the body.
Proteins
Type of biochemical molecule that does not dissolve in water
Lipids
Where do humans get their energy from?
Food
