Cell Chemistry LPA Week 3 Standard 2.3

Monday Objective I will describe cell theory and relate it to the nature of science.

Bell work Read pages

Reading Questions What questions do you have as a result of your reading?

Vocabulary Review Make sure you remember the definitions for the following terms from Middle School: – Cell – Microscopes – Bacteria

Vocabulary Create vocabulary flashcards for the following terms: – Light Microscope – Electron Microscope

Observing Cells 1665 – Robert Hooke created a primitive _________ microscope. Many ____________ in a cell are too small to see with a light microscope.

Observing Cells 1950s – The powerful electron microscope was created. ____________ microscopes show many _________ structures in a cell. Electron microscopes may only image _______ cells.

Cell Theory Rudolf Virchow – proposed that __________ only come from other ________. Theodor Schwann – All ____________ are made of __________. Matthias Jakob Schleiden – All _________ are made of __________.

Cell Theory 1.All __________ are composed of cells. 2.Cells are ______ and the basic living units of organization in all organisms. 3.All cells come from ______ _______.

Levels of Organization ____________ organisms have many types of ____________ cells in their bodies.

Levels of Organization Organism Organ System OrganTissue Cell OrganelleMolecule Atom

Monday Objective I will describe cell theory and relate it to the nature of science.

Homework Complete questions 1-9 on page 125. Read pages 126 – 132.

Tuesday Objective I will identify different cells. I will describe cell structures and their functions.

Bell work Complete questions 1-3 on page 133.

Reading Questions What questions do you have as a result of your reading?

Vocabulary Review Make sure you remember the definitions for the following terms from Middle School: – Cell – Prokaryote – Eukaryote – Nucleus – DNA

Vocabulary Create vocabulary flashcards for the following terms: – Organelle – Plasmid – Plasma Membrane – Cytosol – Cytoplasm – Chromosome

Cell Types Prokaryotic cells do not contain ___________- __________ organelles like a ____________. Eukaryotic cells contain __________ - __________ organelles like a ___________, ___________, or ____________.

Prokaryotes Do not have a __________ or other membrane-bound ____________. Prokaryotic cells are much ___________ and __________ than eukaryotes. DNA is a large ___________ that is coiled up. May contain smaller circles of DNA called ____________. Example: ___________ and archaebacteria

Prokaryotes

Eukaryotes Contain a ___________, and other membrane-bound ____________. Eukaryotic cells may be _______________. DNA is contained in a _____________. Examples: __________, ___________, ___________, and ___________.

Eukaryote

Plasma Membrane The plasma membrane is a __________ layer of phospholipids with ___________ randomly placed throughout. The plasma membrane is also known as the _______ _______________. The plasma membrane controls what goes ________ and _______ of a cell.

Plasma Membrane

Cytosol The cytosol is the ___________ fluid-like substance that surrounds all the organelles of a cell. The cytosol is composed of ___________ and other __________ (such as ___________).

Cytoplasm The cytoplasm is a term that refers to the _________ and all the organelles of a cell except for the __________.

Nucleus The nucleus is a ____________ - bound organelle that contains most of the ___________ material of a cell. The nuclear membrane controls which molecules go in and out of the ___________.

Chromosomes The DNA in a nucleus is wrapped in _________ and then coiled to form _____________. The genetic material directs which ____________ are made and then shipped to other parts of the cell or body.

Mitochondria Mitochondria generate cellular __________, called __________, needed to power chemical reactions. Mitochondria are found in ALL ____________ cells.

Chloroplasts Site of ________________. Found in plants, ________, and some ___________.

Other Eukaryotic Organelles ___________ are storage centers. ___________ contain enzymes that break down old molecules. The ____________ gives the cell structure like your bones. ___________ interpret RNA and creates proteins.

Endoplasmic Reticulum The ____________ ____________ (ER) is a membranous maze surrounding the nucleus. ________ ER has ribosomes attached to the membrane and produces ___________. ________ ER does not have ribosomes and produces ___________.

ER

Golgi Apparatus The golgi apparatus receives the ___________ from the rough ER. It packages the proteins by adding a ________ molecule. It ships the package to the correct place in the _______.

Golgi Apparatus

Plant Cells Plant cells are ____________ cells. Differ from animal cells in the following ways: – Plant cells contain a large central ___________. Contains water, nutrients and wastes Makes up 90% of the cell’s volumes – Animal cells contain much smaller __________.

Plant Cell

Plant Cells Plant cells have a ________ __________ in addition to a cell membrane. This _______ ________ provides __________, rigidity and ___________ to the cell. Other organisms with a cell wall include: – Fungi – Bacteria

Plant Cells Plant cells have ____________ which are the site of photosynthesis. Animals cells do not have these.

Tuesday Objective I will identify different cells. I will describe cell structures and their functions.

Homework Complete questions 4-7 on page 133. Read pages

Wednesday Objective I will describe types of transport across the cell membrane.

Bell work Complete questions 3-5 on page 140.

Reading Questions What questions do you have as a result of your reading?

Vocabulary Review Make sure you remember the definitions for the following terms: – Cell membrane – Concentration

Vocabulary Create vocabulary flashcards for the following terms: – Semipermeable Membrane – Passive Transport – Diffusion – Facilitated Diffusion – Active Transport – Vesicle

Quiz C =NO communication except with the teacher. H =Raise your hand and wait to speak. A =Take the test. Answer every question. M =Do not get out of your seat or into your bags. P =Finish the test. When you finish, turn your paper over and describe the process of photosynthesis.

Wednesday Objective I will describe types of transport across the cell membrane.

Homework Complete questions 6-8 on page 140.

Thursday Objective I will describe types of transport across the cell membrane.

Bell work Complete questions 9 & 10 on page 140.

Demonstration Create a scientific diagram that records the ingredients of each beaker and each plastic bag. Check the beakers at 5 minutes intervals. Draw new diagrams every time you check the beakers.

Transport The cell membrane is _____________ permeable, or “semipermeable,” which means that only some ___________ can get through the membrane. Water and small non-charged molecules such as __________ and CO 2 slip around the phospholipids. Larger ____________ and _________ molecules cannot slip across the membrane.

Cell Membrane

Passive Transport Passive transport is the _____________ of molecules and particles across a cell membrane without the input of __________. Types of Passive Transport: – Diffusion – Facilitated Diffusion

Diffusion Diffusion is the ______________ of molecules from an area of ________ concentration to an area of ________ concentration. Diffusion does not require ___________. Diffusion occurs by the __________ movement of molecules.

Osmosis Osmosis is the diffusion of ____________. – Hypotonic – the external water solution has a _________ concentration of dissolved material than the cytosol. – Hypertonic – The external water solution has a _________ concentration of dissolved material than the cytosol. – Isotonic – the external water solution has the _________ concentration of dissolved material as the cytosol.

Facilitated Diffusion Simple diffusion works for ______ molecules and ____-_________ molecules. Large molecules and charged molecules cannot slip past the ________________ heads of the cell membrane. _______________ diffusion is the use of proteins to transport large molecules and charged molecules into or out of the cell.

Channel Proteins __________ or charged molecules move across the cell membrane through ___________ proteins. ___________ proteins are always open and act like a _________. Channel proteins do not require energy; so they are a form of ___________ transport.

Carrier Proteins _______ molecules are ___________ across the cell membranes when they meet a carrier protein. Carrier proteins do not require energy; so they are a form of ___________ transport.

Active Transport Active transport moves molecules __________ the concentration gradient. – From an area of _______ concentration to an area of _______ concentration. Active transport requires ________ and _________ proteins to move the molecules.

Vesicles A vesicle is a small bubble of ___________ that transports a large to the _______ _____________. Vesicle formation requires ___________. – Exocytosis – the vesicle transports a molecule from within the cell to the cell membrane. – Endocytosis – the vesicle forms at the cell membrane and transports the molecule into the cell.

Thursday Objective I will describe types of transport across the cell membrane.

Homework Complete questions 1 & 2 on page 140.

Friday Objective I will describe osmosis in hypertonic, isotonic, and hypotonic solutions.

Bell work Review the lab instructions. Record your questions in the margins.

Demonstration Create a scientific diagram that records the ingredients of each beaker and each plastic bag. Check the beakers at 5 minutes intervals. Draw new diagrams every time you check the beakers.

Phet Simulation Virtual Membrane Diffusion Lab brane-channels brane-channels

Friday Objective I will describe osmosis in hypertonic, isotonic, and hypotonic solutions.

Homework Complete the worksheet.