Study Guide Review

Unit 2 Part 1 test November 18 – Gold

November 19 - Purple

7 Characteristics of LifePage 36-37 of your SN

• Ability to move• Ability to grow• Ability to respond to stimuli• Ability to reproduce• Able to use energy• Made up of cells• Different levels of organization

Cell Theory Page 40 of your SN

• All living things are made up of cells• Cells are the basic unit of structure and

function in living things.• Living cells come only from other living cells.

Scientists and Cell TheoryPage 40 of your SN

Scientist What they did for the cell theory

Robert Hooke Discovered honeycomb like structures in cork slice, saw cell wall. Coined the term “cell”

Anton van Leeuwenhoek Discovered protozoa and bacteria after examining pond water

Robert Brown Discovered nucleus in plant cells

Theodor Schwann Concluded all living things are made of cells both plant and animal

Rudolf Virchow Added third part to cell theory “cells develop only from existing cells”

Examples of Uni and Multi-cellularPage 42-44 of your SN

• Unicellular– Amoeba– Euglena– Paramecium– Bacteria

• Multicellular– Hydra– Rotifer– Daphnia– Water Bear– Pollen and Petal– Leaf, Stem, Root Cell– Bone and Muscle Cell– Skin and Brain Cell

Prokaryotic and EukaryoticPage 41 of your SN

• Prokaryotic– Does not contain a

nucleus– Smaller

• Eukaryotic– Does contain a nucleus– larger

How are cells different within a multicellular organism?

• Cells have specialized functions• Bone cells are specific to the bone, muscle

cells are specific to muscles.

Three things that compose a cell?

1. Carbon2. Hydrogen3. Oxygen

Cell vs. AtomPage 45 of your SN

• Cells are much larger than atoms

• Not all cells are microscopic. – Pollen and Petal– Leaf, Stem, Root Cell– Brain and Muscle Cell– Skin and Bone Cell