Jan. 9 th , 2012 Warm Up

Jan. 9th, 2012 Warm Up1. Collect Journal

2. Collect Textbook (may be under chair)

3. Turn to next empty page in journal

4. Write down vocabulary words and definition

Vocabulary Words:

Cell membrane Chloroplast Vacuole

Nucleus Cell Wall

Cytoplasm Mitochondria

What is the difference between a plant cell and an animal cell? Explain

• Discussion:

http://www.youtube.com/watch?v=-zafJKbMPA8&feature=related

Chapter 2 “Cells”Section 1: “Cell Structure

Pages 38 – 40

COMMON CELL TRAITS

• A cell is the smallest unit that is capable of performing life functions.

COMPARING CELLS

• The size & shape of a cell relates to its function. (job it does)

Prokaryotic Cells(proh KAYR ee yah tihk)

• cells without membrane-bound structures

• EX: bacteria

pond scum

Eukaryotic Cells(yew KAYR ee yah tihk)

• cells with membrane-bound structures

• EX: animals, plants, fungi and protists

• protects the cell

• gives shape

• is made of cellulose

• A cell wall is found in plants, algae, fungi, & most bacteria.

CELL WALL

CELL MEMBRANE

• Outer covering, protective layer around ALL cells

• For cells with cell walls,the cell membrane is inside the cell wall

• Allows food, oxygen, & water into the cell & waste products out of the cell.

CYTOPLASM

• gelatin-like inside cell membrane

• constantly flows

• aka protoplasm

NUCLEUS

• Directs all cell activities

• Contains instructions for everything the cell does

• These instructions are found on a hereditary material called DNA

• Usually the largest organelle

CHLOROPLASTS

• Green organelles that make food

• found only in plant cells

CHLOROPHYLL

• A green pigment that gives leaves & stems their color

• Captures sunlight energy that is used to produce food called glucose

• Glucose is a type of sugar

MITOCHONDRIA

• Organelles that release energy from food

• This energy is released by breaking down food into carbon dioxide

• AKA the powerhouse b/c they release energy from food

• Some muscle cells have 20,000 mitochondria

VACUOLES

• Temporary storage spaces

• Store food, water, waste

NAME THE ORGANELLE

d. Mitochondria

b. Chloroplast

c. Cell Wall a. Nucleus

How do Cell’s relate to Human Body

Organelle Human Body Comparison

Cell Membrane

Nucleus

Cytoplasm

Vacuole

Mitochondria

FROM CELL TO ORGANISMCell

The basic unit of life

TissueGroup of cells working together

OrganGroup of tissues working together

OrganismAny living thing made of 1 or more cells

Organ SystemGroup of organs working together

Color Code Cells DiagramsCell MembraneNucleusCytoplasmVacuoleMitochondria Cell wallChloroplast

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