Bio Chapter 1

Biology

The study of life, behavior and interactions between organisms

Living organisms are

Complex, have ability to reproduce, respondto different environments and evolve

1st law of Thermodynamics

Energy can not be created nor destroyed, only transformed

2ndlaw of Thermodynamics

When energy is transferred, sometimes lost (as heat). This causes entropy, disorder, which increases in the universe overtime. When burning fuel in a car, chemical becomes motion, but lots are lost as heat

Cell membrane

surrounds cell, separates the inside processes from outsides. communicates and transfers info

Eukaryotic cell

has a nucleus, humans, animals

prokaryotic cells

no nucleus, bacteria

Mutation

source of genetic variation, but not always bad and could improve organisms

Metabolism

process of harnessing energy, builds up and breaks down molecules

Cells convert energy from ___/___ into ____

sun (for plants) /chemical comp (food for humans) into ATP

Central Dogma

DNA transcribes info to RNA and RNA translates to Proteins