STATION #1
1. Use the outline to take notes on the “Phases of Mitosis”
2. Fill it out on your paper on your folder with a dry erase marker. Then check you answers on the inside. Use your teammates for help.
Prophase
Brief description (what is happening)
Vocabulary (define, drawing can be helpful)
Chromatin
Sister chromatids
Centromere
Centrolies
Spindle
Metaphase
Brief description
Vocabulary
Equator
Anaphase
Brief description
Telophase
Brief Description
- what is the result of mitosis?
- What type of reproduction is mitosis considered?
- List two other types of this type of reproduction above.
Prophase
Brief description (what is happening)
-- Nuclear membrane begins to break down
-- Chromosomes become visible
-- centrioles begin to move to either side of the cell
Vocabulary (define, drawing can be helpful)
Chromatin – loose form of DNA
Sister chromatids - Two identical strands joined by a commoncentromereas a result of achromosomethat duplicated during the S phase of thecell cycle.
Centromere-The most condensed and constricted region of a chromosome, to which the spindle fiber is attached during mitosis.
Centrolies-One of two cylindrical cellular structures that are composed of nine triplet microtubules and form the asters during mitosis.
Spindle-One of a network of achromatic filaments that extend inward from the poles of a dividing cell, forming a spindle-shaped figure.
Metaphase
Brief description
-- sister chromatids line up at the equator of the cell
-- spindle fibers attached at the centromere
Vocabulary
Equator -- middle
Anaphase
Brief description
--Sister chromatids are pulled apart by spindle fibers
--Cell elogates
Telophase
Brief Description
-- nuclear membrane begins to reform
-- cell begin to “cleave” animal cells have a cleavage furrow and plants have a cell plate
- What is the result of mitosis?
Two identical daughter cells with exact same DNA
- What type of reproduction is mitosis considered?
Asexual
- List two other types of this type of reproduction above.Binary Fission Budding
STATION #2
1. Observing the Cell cycle in plant and animal cells
2. At this station the different phases of the cell cycle in onion root tips and whitefish blastua cells. You will view five different phases of the cell cycle and make sketches in the space provided. Then check you answer.
3. Neatly label the following structures if visible
- chromosomes
- nuclear membrane
- cell wall
- cleavage furrow
- spindle fibers
4. in the space provided below your drawing identify the phase the cell is going through and the type of cell.
AB
Phase:______Metaphase______Phase:______Telophase_____
Type of cell:____animal______Type of cell:_____Animal_____
CD
Phase:______Cytokinsesis____Phase:______INTERPHASE___
Type of cell:___Plant______Type of cell:______PLANT_____
EF
Phase:______Prophase______Phase:_____Anaphase______
Type of cell:______Plant____Type of cell:____Animal______
Questions:
What is the importance of mitosis to unicellular organisms?
growth
What is the importance of mitosis to multi-cellular organisms?
Growth and repair
AB
Phase:______Phase:______
Type of cell:______Type of cell:______
CD
Phase:______Phase:______
Type of cell:______Type of cell:______
EF
Phase:______Phase:______
Type of cell:______Type of cell:______
Questions:
What is the importance of mitosis to unicellular organisms?
What is the importance of mitosis to multi-cellular organisms?
STATION #3
ONLINE ONION ROOT TIP:
PHASES OF THE CELL CYCLE
For the following activity, go online and view cells undergoing mitosis. You will need to complete the following chart for your portfolio.
Procedure:
6. Go to
7. Click on “Cell Biology.”
8. Click on “Online Onion Root Tip: Phases of the Cell Cycle.”
9. Read all of the introductory information and keep clicking NEXT until you reach the Data Table.
10. Identify the correct phase of mitosis as the cells come into view.
11. Fill out the following chart as you go.
12. Answer the questions that follow.
ONLINE ONION ROOT TIP:
PHASES OF THE CELL CYCLE
Interphase / Prophase / Metaphase / Anaphase / Telophase / Total# of cells / 36
% of cells / 100%
Questions:
According to your chart, in which phase of the cell cycle do cells spend the most time?
According to your chart in which phase of the cell cycle do cells spend the least amount of time?
Do these predictions make sense in light of what you already know about the cell cycle? Why or Why not?
ONLINE ONION ROOT TIP:
PHASES OF THE CELL CYCLE
Interphase / Prophase / Metaphase / Anaphase / Telophase / Total# of cells / 20 / 10 / 3 / 2 / 1 / 36
% of cells / 56% / 28% / 8% / 5.5% / 2.7% / 100%
Questions:
According to your chart, in which phase of the cell cycle do cells spend the most time?
Interphase
According to your chart in which phase of the cell cycle do cells spend the least amount of time?
Telophase
Do these predictions make sense in light of what you already know about the cell cycle? Why or Why not? Yes,
STATION #4
THE MEMORY GAME
1. Place all of the cards face down.
2. Flip over two cards.
3. If you have a match (a vocabulary term with the correct definition), you may remove both cards from the board.
4. If you do not have a match, it is the other person’s turn, but you should remember where the cards are so that later in the game you can make a match.
5. Repeat steps 2-4 until all matches have been made.
6. The winner is the person with the most matches.
Vocabulary for Memory Game
PROPHASE
METAPHASE
ANAPHASE
TELOPHASE
INTERPHASE
MITOSIS
CYTOKINESIS
CHROMOSOME
CHROMATIN
CENTRIOLE
CENTROMERE
SPINDLE
CHROMATID
EQUATOR
______First and longest phase of mitosis; chromatin coils into visible chromosomes
______Shortest phase of mitosis; chromosomes move to the equator; chromatids are
attached by centromeres
______Centromeres split and chromatid pairs are pulled apart
______Final phase of mitosis; nuclear membrane begins to reappear; new cells prepare
for their new independent existence
______Busiest phase of the cell cycle; includes growth and DNA replication
______Division of the nuclear material; two new daughter cells formed that are identical to the mother
______Division of the cytoplasm
______Tangled mass of DNA and proteins; state of DNA during interphase
______Structure that contains DNA; appears right before cellular division and vanishes following cell division
______Structures found in animal cells that duplicate during interphase and move to
opposite poles during prophase
______Cell structure that joins two sister chromatids of a chromosome
______Cell structures composed of microtubule fibers; “pull” apart sister chromatids
______Identical halves of a duplicated parent chromosome; held together by a centromere
______Midline of a cell during
STATION #5
Cell Cycle Graphics
- with a partner take the pictures and put them in the correct order following what you know about the cell cycle.
- This is a quiz grade. When you complete the activity raise your hand and the Instructor will evaluate.
- If it is completely correct you will receive a 100
- If it is wrong, for every time the instructor checks your work it is 10 points off.
- Good Luck
Station #6
DNA and Replication
- Draw the other side to the DNA molecule.
- Label the following
- Sugar
- Phosphate
- Nitrogen base
1. What type of sugar is found in DNA?
2. What are the four bases to DNA?
3. How many Adenine molecules are in the DNA molecule above?
4. How many Thymines are in the DNA molecule above?
5. What conclusion can you draw from the two questions above?
6. Describe what happens during replication.
7. What is the end result of Replication.
1. What type of sugar is found in DNA?
deoxyribose
2. What are the four bases to DNA?
A, T, G, C
3. How many Adenine molecules are in the DNA molecule above?
five
4. How many Thymines are in the DNA molecule above?
five
5. What conclusion can you draw from the two questions above?
There are always the same number of Adenines as Thymines because they pair together
6. Describe what happens during replication.
Helicase comes in a seperates the two sides of the DNA molecule. Then, DNA polymerase pairs the correct bases with the existing bases creating two DNA molecules
7. What is the end result of Replication.
A semi conservative DNA molecule. This means one side is an original side and one side is a new side of each DNA molecule.