September 19, 2013

September 19, 2013 Turn in your Reinforcement 3.1/3.3 to in-box Grab a Biology textbook from the shelf Study! Quiz is on sections 1.1, 1.3, and 1.5

Look at the vocab in 1.3 carefully A hypothesis is a proposed answer for a

scientific question. A theory is a proposed explanation for a wide

range of observations and experimental results that is supported by a wide range of evidence.

It is NOT a guess or an assumption.

Quiz Make sure your table is clear of everything

except a writing utensil and manila folders. Prop the manila folders between yourself

and your neighbors for privacy. You have 15 minutes to complete the quiz. When complete, flip the quiz paper face

down. Good luck!

Binder Check Seven tabs:

Seatwork Homework

Vocab -> PowerNotes -> Reinforcement Classwork Quizzes/Tests Handouts EOC Practice Paper

Organelle Foldable Fold your paper in half. On one side, write your name. On the other side, write:

The three principles of cell theory:1. All organisms are made of cells.2. All existing cells are produced by other

cells.3. The cell is the most basic unit of life.

Organelle Foldable

Organelle Foldable Cell membrane Cytoskeleton Cell wall Nucleus Endoplasmic

reticulum Ribosome

Golgi apparatus Vesicle & Vacuole Mitochondria Chloroplast Lysosome Centriole

Cell Membrane Structure:

Phospholipid Bilayer Receptor proteins & other molecules

Function: Boundary between inside/outside of cell Controls passage of materials

Cytoskeleton Structure:

Network of protein fibers

Function: Structures & supports cell shape Aids in cell division & movement

Cell Wall Structure:

Rigid layers of cellulose or chitin

Function: Provides rigid support to plants, algae, fungi and bacteria cells

Nucleus Structure:

Nuclear membrane Nucleolus Chromosomes

Function: Stores most DNA (genetic information)

EndoplasmicReticulum Structure:

Maze-like structure; Interior is called lumen Rough (w/ ribosomes) and smooth ER (w/o)

Function: Produces proteins (rough ER) and lipids (smooth ER)

Ribosome Structure:

Made of proteins and RNA Some attached to ER, some floating in cytoplasm

Function: Make proteins

Golgi apparatus Structure:

Layered stacks of membrane-enclosed space

Function: Processes, sorts, packages, and delivers

proteins

Vesicle & Vacuole Structure:

Small, membrane-bound sacs Vacuoles filled with fluid

Function: Transport (vesicle) & storage (vacuole) of materials inside cells

Mitochondria Structure:

Bean-shaped Double layer of membrane

Function: Converts food into energy using cellular

respiration

Chloroplast Structure:

Outer and inner membranes Contain stacks of disc-shaped sacs called

thylakoids

Function: Convert solar energy to chemical energy

Lysosome Structure:

Membrane sac filled with digestive enzymes

Function: Digests/breaks down materials Recycles worn-out cell parts

Centriole Structure:

Cylinder-shaped Made of microtubules Found in pairs

Function: Help coordinate cell division

Homework Use your textbook to complete organelle

drawings on inside of third tab of foldable.

Sections 3.4 & 3.5: Vocab PowerNotes Reinforcement

Exit Question What are two organelles that plant cells

have that animal cells do not?