5.2 Mitosis Describe Interphase Know the phases of mitosis Know Cytokinesis.

Slides:



Advertisements
Similar presentations
CELL DIVISION Unit 3 Part 2 – The Cell. Cell Cycles  No nucleus  No membrane bound organelles (ex. mitochondria, vacuole, chloroplast)  A.) Cell division.
Advertisements

Unit 3 Part 2 – The Cell. PROKARYOTIC CELLSEUKARYOTIC CELLS  No nucleus.  No membrane bound organelles. (ex. mitochondria, vacuole, chloroplast) A.)
Section 10.2 (Pg ): The Process of Cell Division
Chapter 10.2 Cell Division.
Mitosis and the Cell Cycle Division of the nucleus and the nuclear material (DNA), as well as the cell.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
This cycle consists of three phases: G1, S, G2
10 – 2 Cell Division Mitosis. Chromosomes DNA is passed on in chromosomes DNA is passed on in chromosomes Every organism has a specific # of chromosomes:
The Cell Cycle & Cell Division
MITOSIS the key to growth.
The Cell Cycle.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
The Cell Cycle & Cell Division
Cell Division B-2.6 Summarize the characteristics of the cell cycle: interphase (called G1, S, G2); the phases of mitosis (called prophase, metaphase,
Mitosis and Cytokinesis KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions.
Mitosis - Cell Division. Living organisms have life cycles. Life cycles begin with organism’s formation, followed by growth and development and end in.
CELL CYCLE How many cells do we begin with? 2 How do we get more?
10-2 Cell division.
The Cell Cycle.
Cells divide during mitosis and cytokinesis. Cells that make up the “body” of an organism 2.
5.2 Mitosis and Cytokinesis KEY CONCEPT Cells divide during mitosis and cytokinesis.
Activity #44 PHASES OF THE CELL CYCLE
Cell Reproduction Part 1 “All cells come from pre-existing cells.”
3/6/2016 Cell Division Cell divides into two daughter cells.
The Cell Cycle.
Cell Division. Why? Cells divide for many reasons: – In order to stay small Diffusion occurs at a faster, more efficient rate in smaller cells. – DNA.
The Cell Cycle & Cell Division
MITOSIS. Animated Cycle
CELLULAR RESPIRATION 2 ATP’s 2 ATP’s 34 ATP’s.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
The Cell Cycle.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
Cell Cycle: Interphase & Mitosis
Mitosis.
Mitosis: Cell Division
KEY CONCEPT Cells divide during mitosis and cytokinesis.
Vocabulary Prophase Metaphase Anaphase Telophase.
The student is expected to: 5A describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication and mitosis, and the importance.
The Cell Cycle.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
The cell cycle has four main stages.
The Cell Cycle The Life Cycle of a cell : includes Growth, Development, and Reproduction.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
Cytokinesis: cleavage furrow, cell plate
Life of a Cell The Cell Cycle.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
CELL CYCLE Mitosis.
The Cell Cycle & Cell Division
The Cell Cycle & Cell Division
The Cell Cycle & Cell Division
The Cell Cycle & Cell Division
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
Warm up What are the check points that must occur for mitosis to begin?
KEY CONCEPT Cells divide during mitosis and cytokinesis.
The Cell Cycle & Cell Division
KEY CONCEPT Cells divide during mitosis and cytokinesis.
KEY CONCEPT Cells divide during mitosis and cytokinesis.
Presentation transcript:

5.2 Mitosis Describe Interphase Know the phases of mitosis Know Cytokinesis

Cell Cycle 1.Interphase 2.Mitosis 3.Cytokinesis

Interphase (cell cycle) Not dividing Growth and preparation

Interphase (cell cycle) 1.G1 (gap 1) – growth 2.S (synthesis) – chromosomes replicate 3.G2 (gap 2) –new organelles

Interphase Chromosome replication 1.Chromatin coils/ twists to form a chromosome 2.Chromosome makes a copy 3.Sister chromatids formed

Question: What is a chromosome?

Answer: chromosomeDNAhistone protein chromatinA chromosome is made up of a DNA - histone protein complex called chromatin. Chromatin chromosomesChromatin is a long, thin fiber that is folded and coiled to form chromosomes. DNA double helix Histone proteins chromosome

Question: What is a replicated chromosome?What is a replicated chromosome?

Answer: chromosome chromatidssister chromatidsA replicated chromosome consist of two strands of identical chromosomal material called chromatids (sister chromatids). chromatid S phase: chromosomes replicate chromosome centromere

Question: When is a chromatid a chromatid?When is a chromatid a chromatid?

Answer: chromatidchromatid sisterchromatid centromereA chromatid is a chromatid as long as it is held in association with a sister chromatid at the centromere. chromatid centromere chromosome

Mitosis Follows Interphase in the cell cycle 1.Prophase 2.Metaphase 3.Anaphase 4.Telophase

Prophase - 1 Nuclear membrane breaksdown Centrioles move to poles Spindle fibers form Sister chromatids are held together centromeres

Metaphase -2 Centromeres attach to fibers Pull chromosomes to the center on the “metaphase plate”

Anaphase - 3 Centromeres divide sister chromatids Chromatids move to opposite poles of the cell

Telophase - 4 Chromosome fully divided into 2 new cells 2 nuclei and nuclear membrane form Chromosomes uncoil to form chromatin

Cytokinesis Follows mitosis in the cell cycle Cytokinesis = division of cytoplasm Cell membranes start to split 2 new cells are formed

Cytokinesis – Animal Animal cell – pinches off its membrane to form 2 new cells 24 hours after fertilization Plant cell – Cell wall is being formed between 2 plant cells Cell plate forms new cell membranes

Cytokinesis - plant Plant cell – Cell wall is being formed between 2 plant cells Cell plate forms new cell membranes

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.