Download - 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?