CELL STRUCTURE7th Grade

Do Now…

◦Define organelles, nucleus, chloroplasts, and mitochondria on index cards

◦Vocabulary Check will be tomorrow

Objectives

Students will…◦Describe the development of the cell theory◦Identify the names and functions of each part of a cell

Cell Theory

◦1) All organisms are made up of one or more cells.

◦2) The cell is the basic unit of organization of organisms.

◦3) All cells come from cells.◦Wacky History of Cell Theory

Visualizing Microscopes ◦Turn to pgs. 222-223 in your textbook

Microscope Facts

Brightfield/Darkfield

Leeuwenhoek

Transmission ElectronPhase Contrast

Scanning Electron

Fluorescence

Cellular Organization

◦http://www.cellsalive.com/cells/bactcell.htm (Prokaryotic)

◦Label bacteria cell worksheet.

◦Prokaryotic cells-are only found in one-celled organisms like bacteria.

◦All cells must constantly take in nutrients, store, produce, breakdown substances and take in and use energy.

◦Prokaryotic vs. Eukaryotic

For Next Time…

◦Read pgs. 226-231◦Define endoplasmic reticulum, golgi bodies, tissue, organ and organ system.

CELL STRUCTURE7th Grade

Do Now…

◦Which of the scientists who contributed to the development of the cell theory is the most important? Explain your thoughts.

Objectives

Students will…◦Review cell structure vocabulary

Vocabulary Review Time

◦With a partner, review your cell structure vocabulary cards. Make sure that you have the same number of cards and have accurate definitions.

◦Quiz each other on the words and definitions.

For Next Time…◦Continue to review vocabulary cards over the weekend.

◦Each lab group needs to bring in one flashlight for Monday’s mini lab.

◦ http://www.cellsalive.com/cells/3dcell.htm (Practice labeling different types of cells.)

CELL STRUCTURE(CONTINUED)

7th Grade

Do Now…

◦Name the 3 parts of the cell theory.

Objectives

Students will…◦Identify names and functions of each part of the cell

◦Explain how important a nucleus is in a cell.◦Compare tissues, organs and organ systems. ◦Model cytoplasm using gelatin

Cellular Organization

◦http://www.cellsalive.com/cells/cell_model.htm (Eukaryotic)

◦Label plant/animal cell worksheet. ◦Eukaryotic cells have membrane-bound structure and are found in protists, fungi, plants and animals.

◦Crash Course Animal Cells◦Crash Course Plant Cells

Mini Lab-Modeling Cytoplasm

◦Purpose: Model Cytoplasm using gelatin.

◦Lab procedures/directions◦Complete lab worksheet.

For Next Time…

◦Finish labeling plant/animal cell worksheets if needed. Use textbook or cellsalive.com to help.

BILL NYE: CELLS7th Grade

Do Now Together…

◦How are plant animal cells alike and different?

Many-Celled Organisms◦Cells in many-celled organisms do not work alone. They each carries on its own life functions while depending on some way on other cells in the organism.

◦Many one-celled organisms perform all life functions on their own.

◦Tissue is a group of similar cells that work together to do one job. Each cell in a tissue does it part to keep the organ alive.

◦Organ (made up of tissue) is a structure made of 2 or more different types of tissues that work together. (muscle/blood tissue)

◦Organ system is a group of organs working together to perform a certain function. (heart, arteries, veins and capillaries)

Objectives

Students will…◦Watch a Bill Nye video to review the major components of cells

Bill Nye: Cells

◦Take a few minutes and write down 3 things that you already know about heat on your worksheet.

◦As you are watching the video, write down 3 content related questions you might have about the topics discussed.

◦Finally, write down the 3 main points of the video in the triangle on the back of the paper.

For Next Time…

◦No Homework! ◦Happy Thanksgiving ◦Random Acts of Kindness