Presentation is loading. Please wait.

Presentation is loading. Please wait.

Bell Work 1-23-12 An experiment should be controlled because it allows the scientist to test a a. conclusion b. a mass of information c. several variables.

Similar presentations


Presentation on theme: "Bell Work 1-23-12 An experiment should be controlled because it allows the scientist to test a a. conclusion b. a mass of information c. several variables."— Presentation transcript:

1 Bell Work 1-23-12 An experiment should be controlled because it allows the scientist to test a a. conclusion b. a mass of information c. several variables d. a single variable

2 So what is a cell?

3 A Cell is… The most basic unit of organization that can be considered as life.

4 Original Cell Theory http://www.bio.miami.edu/~cmallery/150/unity/cell.text.htm Theodor SchwannTheodor Schwann and Matthias Schleiden, 1839Matthias Schleiden 1) The cell is the unit of structure, physiology, and organization in living things. 2) The cell retains a dual existence as a distinct entity and a building block in the construction of organisms. 3) Cells form by free-cell formation, similar to the formation of crystals (spontaneous generation).

5 Cell Theory Spontaneous Generation was part of the original cell theory Spontaneous Generation: http://www.chem.ox.ac.uk/vrchemistry/chapter26/page02.htm

6 Modern Cell Theory 1.All known living things are made up of cells. 2.The cell is the structural & functional unit of all living things. 3.All cells come from pre-existing cells by division. (Spontaneous Generation does not occur). 4.Cells contain hereditary information which is passed from cell to cell during cell division. 5.All cells are basically the same in chemical composition. 6.All energy flow (metabolism & biochemistry) of life occurs within cells. 70

7 There are 2 fundamental types of cells

8 There are 2 types of cells http://www.phschool.com/science/biology_place/biocoach/cells/common.html http://www.phschool.com/science/biology_place/biocoach/cells/common.html

9 What are the two types of cells?

10 Two Types of Cells http://www.biologymad.com/ http://www.cod.edu/people/faculty/fancher/ProkEuk.htm http://www.phschool.com/science/biology_place/biocoach/cells/common.html http://www.slic2.wsu.edu:82/hurlbert/micro101/pages/Chap2.html#Eukaryotic http://www.cod.edu/people/faculty/fancher/CellStructure.htm Cells Alive: http://www.cellsalive.com/cells/cell_model.htm http://www.biologymad.com/ http://www.cod.edu/people/faculty/fancher/ProkEuk.htm http://www.phschool.com/science/biology_place/biocoach/cells/common.html http://www.slic2.wsu.edu:82/hurlbert/micro101/pages/Chap2.html#Eukaryotic http://www.cod.edu/people/faculty/fancher/CellStructure.htm Cells Alive: http://www.cellsalive.com/cells/cell_model.htm 1. Prokaryotes 2. Eukaryotes

11 Life on Mars http://www.actionbioscience.org/biodiversity/salyers2.html?print

12 Life on Jupiter’s Moon Europa? What do you think? History of the Universe http://www.historyoftheuniverse.com/archaebact.html

13 There are 2 types of cells ProkaryoticEukaryotic Page 195 Cell that lacks internal structures surrounded by membranes. Organisms that have cells containing internal, membrane-bound structures. Usually single-celled organisms.Organelle: Each has its own membrane. Nucleoli rather than nucleus Kingdom Archaebacteria Kingdom Monera (Eubacteria) Kingdoms Protista, Plantae, Fungae, Animalia. Appeared 3.5 billion years agoEvolved 1.5 billion years ago

14 Kingdoms and Cell Type http://www.ric.edu/faculty/ptiskus/six_kingdoms/index.htm http://www.britannica.com/EBchecked/topic/32547/archaea http://faculty.ccbcmd.edu/courses/bio141/lecguide/unit1/3domain/3domain.html

15 Prokaryote – Eubacteria / Monera

16 Unicellular Prokaryotes Archaebacteria: Found in extreme environments

17 Protista – The Protozoans Eukaryotes Euglena Amoeba Paramecium

18 Plant Cell / Eukaryote

19 Animal Cell / Eukaryote

20 Cell Parts http://www.biology.arizona.edu/CELL_BIO/tutorials/pev/page3.html www.cellsalive.com http://www.johnkyrk.com/CellIndex.html Plant Cell Coloring Sheet http://www.biologycorner.com/worksheets/cell_color_plant.html http://www.biologycorner.com/worksheets/cell_color_plant.html Animal Cell Coloring Sheet http://www.biologyjunction.com/biology_coloring_worksheets.htm Human Cell http://www.crayola.com/free-coloring-pages/print/human-cell-coloring-page/

21 Take Notes and Color Your Cell

22 Animal Cell 1. Nucleolus: black 2. Nucleoplasm: pink 3. Nuclear Membrane: dark brown

23 Plant Cell Nucleolus: black Nucleoplasm: pink Nuclear Membrane: dark brown Chromatin: gray

24 Page 196-199 Define: Nucleus Nucleolus Nuclear Membrane Nucleoplasm Chromatin

25 Parts of a Cell Nucleus: the largest membrane bound organelle; contains the cell’s DNA and manages cell function. Nucleolus: Region within the nucleus that produces ribosomes, which are involved in protein synthesis Nuclear Membrane: The membrane of the nucleus

26 Parts of a Cell Nucleoplasm: The fluid contained within the nucleus of a eukaryote in which the chromosomes and nucleoli are found. Chromatin: long tangled strands of DNA found in the interphase nucleus of eukaryotic cells.

27 Cell Function Review Great Cells Alive 1-24-12 Finish Coloring Finish Defining Read 189 to 208 Page 212, 1-9 Write and answer the questions

28 Animal Cell 1.Smooth endoplasmic reticulum: light blue 2. Ribosomes: red 3. Rough endoplasmic reticulum: dark blue 4.Cell Membrane: light brown

29 Plant Cell 1.Smooth endoplasmic reticulum: light blue 2. Ribosomes: red 3. Rough endoplasmic reticulum: dark blue 4. Chloroplast: light green 5. Cell Membrane: light brown

30 Page 196-199 Define: Ribosomes Smooth Endoplasmic Reticulum Rough Endoplasmic Reticulum Chloroplast Cell Membrane

31 Parts of a Cell Ribosomes: Eukaryotic organelles involved in protein synthesis Smooth Endoplasmic Reticulum: folded, complex system of membranes forming a type of transport system in the cytoplasm of eukaryotic cells. No ribosomes. Rough Endoplasmic Reticulum: with ribosomes

32 Parts of a Cell Chloroplast: chlorophyll containing organelle found in green plants and some protists; site where light energy is converted into chemical energy, which is stored in food molecules Cell Membrane: found in plant and animal cells; also called the plasma membrane. Serves as the boundary between the cell and its external environment and allows materials such as oxygen and nutrients to enter and waste products to leave.

33 Animal Cell 1. Microtubules: dark green 2. Lysosomes: pink 3. Mitochondria: dark brown 4.Golgi Apparatus: pink 5.Flagella: red and blue striped

34 Plant Cell 1.Mitochondria: dark brown 2.Golgi Apparatus: pink 3.Vacuole: light blue

35 Page 196-199 Define: 1. Microtubules 2. Lysosomes 3. Mitochondria 4.Golgi Apparatus 5.Flagella 6.Vacuole

36 Parts of a Cell Microtubules: hollow, thin, protein cylinders found in the cytoskeleton of eukaryotic cells; important in cell structure and locomotion Lysosomes: membrane bound organelles containing enzymes that digest food particles, viruses, bacteria, worn-out cell parts, and sometimes the cell itself

37 Parts of a Cell Mitochondrion: Eukaryotic membrane-bound organelle in which food molecules are broken down to produce ATPs; containing highly folded inner membrane that produces energy- storing molecules Golgi Apparatus: membrane sacs that receive, chemically modify, and repackage proteins into forms the cell can use, expel, or keep stored

38 Parts of a Cell Flagella: long, threadlike structures composed of microtubules, project from within the plasma membrane and propel cells and organisms by a whip like motion Vacuole: membrane-bound, fluid-filled space within the cytoplasm; temporarily stores food, enzymes, and wastes

39 Chapter 7 Finish Coloring Finish Defining Read 189 to 208 Write and answer the questions Page 212, 1-9

40 You Tube Cell Videos http://www.youtube.com/watch?v=BTicXXxzQ A4, http://www.youtube.com/watch?v=rABKB5aS 2Zg&feature=related, http://www.youtube.com/watch?v=- zafJKbMPA8&feature=related, http://www.youtube.com/watch?v=LP7xAr2F DFU&feature=related http://www.youtube.com/watch?v=BTicXXxzQ A4 http://www.youtube.com/watch?v=rABKB5aS 2Zg&feature=related http://www.youtube.com/watch?v=- zafJKbMPA8&feature=related http://www.youtube.com/watch?v=LP7xAr2F DFU&feature=related

41 Congratulations! Enjoy this crossword puzzle. http://education.jlab.org/sciencecrossword/ce ll_structures_01.pdf http://go.hrw.com/resources/go_sc/bpe/HL1RC ELV.PDF


Download ppt "Bell Work 1-23-12 An experiment should be controlled because it allows the scientist to test a a. conclusion b. a mass of information c. several variables."

Similar presentations


Ads by Google