Sam’s Puppy Sam brought home a tiny puppy. The puppy grew. Four weeks later, the puppy had grown to twice its original size. Which answer best explains.

Slides:



Advertisements
Similar presentations
The Cell Cycle.
Advertisements

Cell Unit LT #3 I can DESCRIBE how cells multiply.
The Cell Cycle InterphaseMitosisCytokinesis How do cells produce more cells?
Cell Division 7 th Grade Science Chapter 3 – Section 5.
Big Idea Science Standard 7.1.e: Cells divide to increase their numbers through a process of mitosis, which results in two daughter cells with identical.
Cell Division. Learning Objective: Today, we will describe the steps of cell division. How do these two pictures show division? Discuss with your partner.
The Cell Cycle The life cycle of a cell is called the cell cycle.
The Cell Cycle & Cell Division. NOTES: 1. Write the purpose for each type of cell division. (mitosis & meiosis) 2. Draw, label and describe each phase.
The Cell Cycle While you are watching this presentation your body will make millions of new cells!
PTT09DEC2014 What was the most awesome part about the Strawberry DNA extraction? What questions did the lab spark in your brain?
Chapter 3.2 Cell Division Life Science. What causes organisms to grow??  Many organisms start as one cell…what happens to these cells? –Cells divide!!
Mitosis Cell Division.
The Nucleus The largest most prominent organelle found only in eukaryotic cells. It is surrounded by a membrane called the nuclear envelope (or nuclear.
Big Idea. Science Standard 7.1.e: Cells divide to increase their numbers through a process of mitosis, which results in two daughter cells with identical.
Sam’s Puppy Sam brought home a tiny puppy. The puppy grew. Four weeks later, the puppy had grown to twice its original size. Which answer best explains.
Cell Reproduction Part 1 “All cells come from pre-existing cells.”
Chapter 5: Mitosis is the basis of Asexual Reproduction.
List the three stages of the cell cycle.
Cell Division – Ch4/Sect 3 Pgs. 129 – 136
Unit 2 Lesson 1 Mitosis Copyright © Houghton Mifflin Harcourt Publishing Company.
Cell Division and Reproduction
1.2 The Cell Cycle & Mitosis
Focus Questions: Why do cells need to grow and divide?
The Cell Cycle.
Cell Division.
Cell Division Student Text Pages
Eukaryotic Cell Division
Cell Cycle Answer the following:
Mitosis.
Cell Division.
***DRAW ALL PICTURES***
Focus Lesson: CELL CYCLE ORGANELLES
Cell Reproduction.
The Cell Cycle and Mitosis
Large cells cannot transport nutrients across membrane
The Cell Cycle What is the cell cycle?
Cell Division Mitosis.
The Cell Cycle & Cell Division
The Cell Cycle Chapter 3.2.
Cells and Heredity Chapter 3.2.
Mitosis What is it? Why is it Important? What do I need to know?
Mitosis: Cell Division
Unit 2 Lesson 1 Mitosis Copyright © Houghton Mifflin Harcourt Publishing Company.
Cell Growth and Division
1.2 The Cell Cycle & Mitosis
Stage 1: Interphase Stage 2: Mitosis Stage 3: Cytokinesis
CELL CYCLE How Cells Divide 1.
This is the earliest stage of sexual reproduction.
2.4 The Cell Cycle.
The Cell Cycle.
“Cell division is part of the cell cycle”
“Cell division is part of the cell cycle”
What’s in the Nucleus? Genetic material Helix Found in the nucleus
Cell Division.
Last Unit: Reproduction
Biology Notes 2 Mitosis vs Meiosis.
Unit 2 Lesson 1 Mitosis Copyright © Houghton Mifflin Harcourt Publishing Company.
More doesn’t mean better OR more advanced
Bellringer 10/22/13 Where is DNA located in the cell?
Unit 2 Lesson 1 Mitosis Essential Question: How do cells divide?
The Cell Cycle & Cell Division
The Cell Cycle & Cell Division
Large cells cannot transport nutrients across membrane
The Cell Cycle & Mitosis
Interphase is the period in which the cell is not dividing
Cell Growth and Division
THE CELL CYCLE.
2.3 Mitosis.
Chapter 10-2: CELL CYCLE HI!!! M Phase.
Presentation transcript:

Sam’s Puppy Sam brought home a tiny puppy. The puppy grew. Four weeks later, the puppy had grown to twice its original size. Which answer best explains why Sam’s puppy got bigger? A) The number of cells in the puppy’s body increased B) The puppy’s body absorbed the food it ate C) The puppy’s body cells grew larger as it got older D) Parts of the puppy’s body stretched out more

Cellular Processes: Mitosis EQ: How do cells obtain nutrients to grow and make needed materials?

The Cell Cycle: Mitosis In the time that you read this sentence you will have made millions of new cells Your cells die at a rate of about 50 million per second! Making new cells allows you to grow and replace cells that have died. The cellular process responsible for cell growth and repair is called mitosis

The Cell Cycle: Mitosis Mitosis, from the Greek word “mitos”, which means “thread” is the process that sorts the genetic material (chromosomes) into two new nuclei and makes sure both contain exactly the same genetic material

Cells --- they are just like us! Just as you pass through different stages in life, your cells pass through different stages in their life The Cell Cycle: Mitosis

The Cell Cycle: Mitosis The cell cycle starts when the cell is formed and ends when the cell divides and form new cells.

The Cell Cycle: Mitosis But before it can divide, it must make a copy of its deoxyribonucleic acid (DNA)

DNA The DNA is the hereditary material that controls all cell activities, including making new cells DNA is found in the nucleus The DNA is organized into structures called chromosomes.

Chromosomes Copying these chromosomes ensures that each new cell will be an exact copy of its parent cell. The parent cell is the cell that is copying itself

The Cell Cycle: Mitosis When eukaryotic cells divide, its their chromosomes must be replicated, and each of the new cells must receive only ONE copy of each chromosome. This process of the replication of chromosomes is called mitosis. http://glencoe.mcgraw- hill.com/sites/007874184x/student_view0/br ainpop_movies.html#

The Cell Cycle: Mitosis The big idea to remember is that mitosis is the simple duplication of a cell and all its parts

The Cell Cycle: Mitosis The DNA is duplicated and the two new cells, called daughter cells, have the same pieces and the same genetic code. Two identical copies come from one original. Start with one, get two that are the same. Get the picture?

Mitosis: The Phases Beyond the idea that two identical cells are created, there are certain steps to the process….. There are five (5) basic phases in the life- cycle of a cell You should remember PMATI Prophase – Metaphase-Anaphase-Telophase- Interphase

Mitosis: The Phases Prophase – the cell gets the idea that it is time to divide Metaphase– all the pieces are aligning themselves for the big split Anaphase --- here we go! The separation begins Telophase --- the division is finishing Interphase – time to rest up, and just be a cell!

Prophase The cell gets the idea that it is time to divide The chromosomes coil and condense, becoming short, thick rodlike structures. Generally takes 5 to 10 minutes

Metaphase All the pieces are aligning themselves for the big split. Chromosomes line up across the center of the cell (the equator) The nuclear membrane dissolves. Generally takes 5 to 10 minutes

Anaphase Here we go! The separation begins Half the chromosomes go to one side of the cell, the other half go the other way. Generally takes 5 minutes

Telophase The division is finishing up. The cell membrane begins to pinch the cell in two to divide the cytoplasm. A new nuclear membrane forms each new daughter cell. Daughter cells contain the same genetic material found in the original cell and as each other. Generally takes 15 to 20 minutes

Interphase Ahhhh… time to rest and just be a cell and carry on cell functions. But it’s also getting ready for another duplication 94% of the time, cells are in interphase

http://www. youtube. com/watch http://www.youtube.com/watch?v=AtcOxPow2Rs&safety_mode=true&persist_safety_mode=1

Mitosis Flip Book Instructions Use your notes, your book (pgs. 100-101), or your IT to get the necessary information You will be illustrating the changes that take place during cell division. The first oval (or ovals) in EACH phase should show the location of the organelles (nucleus, chromosomes, etc) at that stage. Use the extra ovals to show the movement of organelles between the stages At the bottom (or on the back) of each sheet, describe what is happening during that stage. Once you have completed the drawings, carefully cut out each page, organize from first to last and staple! Flip through your flip book to view cell division! Want/need some extra credit??? Add color