Honors Biology unit 2

System

set of interconnected parts that work together to serve a specific purpose

Specialization

In any system, different parts have different functions; the parts work together to operate the entire system. Occurs at all biological levels of organization

Acronym for chart:

AMMOLCTOOO

What is the chart that shows smallest to greatest

Atom

The most basic level of organization EX: Hydrogen atom

Molecules

2 or more atoms chemically combined (H2O)

Macromolecules

Very large molecules such as fast, proteins, carbohydrates, and nucleic acids

Organelle

small parts inside a cell. EX: nucleus, mitochondria

Cell

fundamental building block of all living- things

Tiissue

Made of of several cells such as skin

Organs

Two or more tissues creating a distinct shape with a distinct function (Liver, eye, stomach, flower)

Organ System

Two or more organs working as a unit to perform a function : Digestive system, Cardiovascular system.

Organisim

Consists of all the systems working together

Two types of cells:

🧬 Prokaryotes

🧬 Eukaryotes

Prokaryotes

Simple cells, no nucleus, no mebrane-bound organelles, DNA floats freely, usually very small. (Bacteria)

Eukaryotes

More complex cells, have nucleus, have organelles, usually larger (Plants, fungi)