Intro To Biology Flashcards
What is abiogenesis?
Living coming from non-living
What is biogenisis?
Living from living
What qualities classify something as living? (List max 6)
- Requires energy
- Produces waste
- Reproduces (asexually and sexually)
- Responds to stimuli
- Growth
- Evolution
How did Reidi disprove abiogenesis? What was his experiment?
Had three jars with meat inside. One jar was left exposed to the air, the second was air sealed, and the third allowed air to come in but nothing else.
The experiment showed that organisms were not able to spawn out of non-living things.
How did Pasture disprove abiogenesis? What was his experiment?
Created a jar filled with broth that let air in, but nothing else.
Organisms were not able to spawn unless the container was broken.
What are the four points of cell theory?
- All organisms are made of cells
- All plants and animals come from cells/are made of cells
- Cells are a basic unit of life
- New cells come from pre-existing cells (cell division)
What is a prokaryote cell?
-no nucleus
-single loop of DNA
-few organelles
-bacteria
What is a eukaryote cell?
-enclosed nucleus
-DNA in chromosomes
-many organelles
-plants + animals