mrzsedwiki.wikispaces.comVocab+2... · Web viewWord (part of speech) Definition: Facts/Examples/Characteristics Facts/Examples/Characteristics Examples Words 1) atom (noun) Definition:

LHS Academic Biology Name: ____________________ Blk __ - __Mr. Zahm, Rm 507 Date: ____

Vocabulary #2 Help Sheet: “Matter and Life”

Use this document to help you complete your Vocabulary assignment according to the “Vocab Format”.The help will be provided in this format:

Word (part of speech)Definition:- Facts/Examples/Characteristics- Facts/Examples/Characteristics- Examples

Words1) atom (noun)

Definition: The simplest type of matter and the smallest amount of an “element” (see periodic table) - that exists.

- Fact: Elements are the simplest, pure type of matter.- Fact: Atoms are made of three types of electrons, protons, and neturons.- Fact: Two or more atoms put together make a “chemical compound”.- Characteistic: They are smaller than even one molecule.- Exs: Carbon atoms, Hydrogen Atoms, Oxygen atoms, and Nitrogen atoms,

2) molecule (noun)Definition: The smallest amount of a chemical (compound) that exists.- Fact: Chemical compound (noun): two or more atoms chemically attached to each other.- Fact: One molecule of water has two atoms of hydrogen and one atom of oxygen (H2O).- Characteristic: A molecule is larger than an atom.- Ex: H2O (water), CO2 (carbon dioxide), C6H12O6 (glucose, a sugar), CH4 (methane gas)

3) organism (noun)Definition: Any, single, living thing.- Synonym: “Living thing”- Fact: Organisms in the same species can reproduce together.- Exs: one bacteria (“a bacterium”); one cat; one yeast cell; one apple tree

4) organelleDefinition: Tiny “organ-like” structures inside of eukaryotic (you’-carry-oats; see below) cells that

each “perform a different function (job)”.

- Characteristic: Organelles are simpler (and smaller) than a single cell.- Characteristic: Organelles are like “tiny organs” of a cell.- Fact: Prokaryotes (bacteria) do not have organelles (only DNA, cytoplasm, and ribosomes).- Ex’s: Mitochondria (energy factory), Chloroplast (performs photosynthesis), Vacuole (stores

materials)

5) cell (noun)Definition: i. The simplest thing that is alive,- Characteristic: Cells are larger than even the biggest chemical compound.- Fact: A bacterium is a living thing made of a single cell (unicellular).- Ex’s: Skin cell; Muscle cell; Nerve cell; Pancreas cell

LHS Academic Biology Name: ____________________ Blk __ - __Mr. Zahm, Rm 507 Date: ____

6) tissue (noun)Definition: Two or more like cells, working together (to do a job).- Fact: There are four types of tissues: nervous tissue, muscle tissue, connective tissue, and

epithelial tissue.- Characteristic: A tissue is more complex (complicated) than a cell.- Ex’s: White Matter (nervous), Heart (muscle) Ligaments/tendons (connective), Skin

(epithelial tissue).-

7) organ (noun)Definition: Two or more tissues, working together (to do a job).- Characteristic: Organs are more complex and (usually) larger than tissues.- Fact: Some simple animals, like sponges and corals, do not have organs.- Ex’s: Heart, Eye, Lung, Blood, Brain.

8) organ system (noun)Definition: Two or more organs, working together (to do a job).- Characteristic: Organ systems are more complex and larger than organs.- Fact: The digestive system includes the, tongue, mouth, esophagus, and stomach (and

digests your food).- Ex’s: Digestive System; Endocrine System; Musculo-skeletal System; Respiratory System;

Reproductive Sys.

9) prokaryote (noun)Definition: The simplest types of organisms, those without a nucleus or organelles.- Fact: The adjective form of this word is “prokaryotic”. (Bacteria are prokaryotic.)- Characteristic: All prokaryotes are single-celled or made of just one cell.- Fact: Prokaryotes do not have organelles and they do not have a “nucleus” – a membrane

around their DNA.- Ex: All bacteria are prokaryotes. (They are all “prokaryotic”.)

10) eukaryote (nound)Definition: More complex organisms whose cells have a nucleus and organelles.- Fact: The adjective form of this word is “eukaryotic”. (Animal and plant cells are eukaryotic.)- Characteristic: Eukaryotes are more complex (more complicated) and larger than

Prokaryotes.- Fact: Eukaryotes include all animals, plants, fungi, and protists (like algae & amoeba).- Characteristic: Most eukaryotes are multi-celled or made of more than one cell.- Fact: Eukaryotes have organelles and a “nucleus” – a membrane around their DNA,

protecting it.- Ex: All members of the Animal, Plant, Fung, and Protist Kingdoms are eukaryotic

Pictures

LHS Academic Biology Name: ____________________ Blk __ - __Mr. Zahm, Rm 507 Date: ____

Atom Molecule Organism Organelles in a Plant Cell

Tissues Organs & Tissues Cell Organelles

Organs of the Endocrine System Proks vs Euks