Saturday, December 1, 2012

CELLS WEBQUEST - BIOLOGY


TYPES OF CELL WEBQUEST

CALIFORNIA STANDARD
CELL BIOLOGY
1. The fundamental life processes of plants and animals depend on a variety of chemical reactions that occur in specialized areas of the organism’s cells. As a basis for understanding this concept:
c. Students know how prokaryotic cells, eukaryotic cells (including those from plants and animals), differ in complexity and general structure.

TASKS:
1.     Know the difference and similarities between prokaryotic and eukaryotic cells
2.     Prokaryotic cells:
a.     Be able to draw and label the parts of a prokaryote cell
b.     Identify the parts of a prokaryotic cell and know their functions
c.     Give examples of prokaryotic cells
3.     Eukaryotic cells:
a.     Be able to draw and label the parts of an ANIMAL eukaryote cell
                                              i.     Identify the organelles of an ANIMAL eukaryote cell
                                            ii.     Give examples of animal eukaryote cells
b.     Be able to draw and label the parts of a PLANT eukaryote cell
                                              i.     Identify the organelles of an PLANT eukaryote cell
                                            ii.     Give examples of plant eukaryote cells

TIME FRAME:  Three days

MATERIALS:  Your textbook, Internet access, paper, writing tools, color pencils

INTRODUCTION:
Look at your hand (yes, LOOK at your hand). Now, touch it (yes, TOUCH your hand). DO IT. Feel the skin under your fingers… Have you EVER wonder…
1.     What is the material that makes up my skin called?
2.     What is it made up of?
3.     Why does it hurt or bleed when it is injured?
4.     Why does it heal and how does it happen?
5.     How do I grow? How did I become the person I am today from the embryo that grew up inside my mother’s womb?
The answers to all these questions: CELLS
1.     CELLS are the smallest units of LIFE that make up living things.
2.     ALL living things are made up of cells
3.     UNICELLULULAR organisms: 1 cell only
4.     MULTICELLULAR organisms: more than 1 cell
There are two main types of cells: prokaryotes (very primitive and simple) and eukaryote (more modern and complex).
Your task is to develop an understanding of each one of these two types of cells J



PRESENTATION NOTE
Students, you MUST follow my already discussed presentation guidelines when turning in your work. I will not grade any work that does not follow my guidelines. Remember, “I have bad handwriting” is no excuse for poor presentation.

PROKARYOTES versus EUKARYOTES
1.     What does “Karyose” mean and how does it relate to PROKARYOTE and EUKARYOTE (give me their definitions)?
2.     What is one very important difference between prokaryotes and eukaryotes?
3.     LIST 5 similarities between prokaryotes and eukaryotes
4.     LIST 5 things that are different between prokaryotes and eukaryotes

PROKARYOTES
1.     Use one of these sites (or other of your choice) to DRAW and LABEL a prokaryote cell:
a.     Label the following: capsule, cell wall, cytoplasm, NUCLEOID (they don’t have nucleus), plasma membrane, ribosomes, flagella, pili,
b.     LIST their names and write their functions (what do they do?): capsule, cell wall, cytoplasm, plasma membrane, ribosomes, flagella, pili,
2.     Give me an example of a prokaryote cell (look in your book or Internet)
3.     Make the drawing half the paper and use rulers to label it.

EUKARYOTES (ANIMAL CELLS)
1.     Use one of these sites (or other of your choice) to DRAW and LABEL an animal eukaryote cell:
a.     Label the following: plasma membrane, cytoplasm, nucleus, nucleolus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus (complex), ribosomes, mitochondrion
b.     LIST and write their functions (9 total)

EUKARYOTES (PLANT CELLS)
1.     Use one of these sites (or other of your choice) to DRAW and LABEL a plant eukaryote cell:
a.     Label the following: plasma membrane, cell wall cytoplasm, nucleus, nucleolus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus (complex), ribosomes, mitochondrion, chloroplast, vacuole.
b.     Which 3 organelles are present in plant cells but not in animal cells? LIST them and write down their function.

Saturday, March 5, 2011

The Fossil Record- Evolution Part 2


How Evolution Works – Evolution Part 2
Ms. Carter

Evidence for Evolution

Video: Becoming a Fossil
Read the Background Essay
  1. DESCRIBE how fossil are formed and give examples
Watch the video
  1. What happened to Lucy? What’s her story?

Video: Laetoli Footprints
Read the Background Essay
  1. Explain how the Laetoli Footprints were formed and preserved
Watch the video
  1. Why are the Laetoli Footprint so important for evolutionary biologists and how old are they?

Video: Evolving Ideas – How do we know Evolution happens?
Read the Background Essay
  1. Write an essay explaining the fossil evidence that supports that evolutionary idea that “whales have descended from land mammals.”
Watch the video:
  1. How do fossils support evolution?

  1. Explain how evolution works.
  2. New species arise through natural selection. LIST and EXPLAIN the four processes of natural selection.
  3. How are “competition” and “natural selection” related?


Thursday, March 3, 2011

Evolution - Part 1


EVOLUTION WEBQUEST – Part 1
Ms. Carter



VIDEO: Who Was Charles Darwin?
  1. Who was Charles Darwin?
  2. What was the name of the ship and why did Darwin take the voyage?
  3. What did Darwin bring with him to England?
  4. What were Darwin’s IDEAS?
  5. Explain the controversy between Darwin’s ideas and the Bible
  6. Name his famous book.
VIDEO: Darwin: Reluctant Rebel
  1. Read the Background  Essay and summarize the information, keep in mind the following:
    1. Describe the world in which Darwin lived
    2. Why was he so concern about disclosing his ideas to the public?
    3. What political, socio-economic changes were taking place around his time?
INTERACTIVE: Darwin’s Diary
Click on “Beagle” go to “Summer 1833, watch the video and write down a paragraph or two discussing these questions:
  1. Why do you think Darwin’s fossils were important to establish his ideas on evolution?
  2. Why do fossils tell us about organisms of the past?
  3. How can we use  fossils to study present day organisms?
VIDEO: Farmers of the Amazon
READ: Darwin argued that organisms must adapt in order to survive their changing environment. Those organisms who adapt can reproduce and pass on their good genes to their offspring. Organisms who can’t adapt, die out and eventually become extinct. Darwin called his idea “NATURAL SELECTION.”
First, read the “Background Essay,” Then watch the video and answer these questions:
  1. Describe at length the connection that exist between the leafcutter ants, the fungi, the mold, and the antibiotic.
  2. How are these ants related to the idea of Natural Selection?
  3. What type of SYMBIOTIC relationship is demonstrated here? Explain it
  4. How does symbiosis affect evolution?