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The Cell Cycle The Cell Cycle

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Page 1: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

The Cell CycleThe Cell Cycle

Page 2: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Cell Division is MitosisCell Division is Mitosis

• For single celled For single celled organisms, this organisms, this increases their increases their population.population.

• For multi-celled For multi-celled organisms, this is organisms, this is for growth, repair, for growth, repair, & differentiation.& differentiation.

Page 3: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Basic StepsBasic Steps

• Duplicate DNADuplicate DNA• Divide Divide

chromosome into chromosome into 2 complete sets.2 complete sets.

• Divide into 2 Divide into 2 identical daughter identical daughter cellscells

Page 4: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Stages of the Cell CycleStages of the Cell Cycle

• InterphaseInterphase• MitosisMitosis

– ProphaseProphase– MetaphaseMetaphase– AnaphaseAnaphase– TelophaseTelophase– CytokinesisCytokinesis

Page 5: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

InterphaseInterphase

• 90% of the time 90% of the time the cell is in this the cell is in this phase.phase.

• Preparing for Preparing for division.division.– Copies organelles Copies organelles

7 centrioles7 centrioles

Page 6: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Prophase – Prophase – the start of mitosisthe start of mitosis

• Chromosomes Chromosomes condense.condense.

• Centrioles move to Centrioles move to opposite sides.opposite sides.

• Spindle fibers form.Spindle fibers form.• Nuclear membrane Nuclear membrane

gone.gone.• The chromosome & The chromosome &

their copy are called their copy are called sister chromatids.sister chromatids.

Page 7: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

MetaphaseMetaphase

• Sister chromatids Sister chromatids are aligned at the are aligned at the center of cell (the center of cell (the equator).equator).

Page 8: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

AnaphaseAnaphase

• Sister chromatids Sister chromatids move towards move towards each side.each side.

• Once separated, Once separated, the chromatids the chromatids are now are now chromosomes chromosomes again.again.

Page 9: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

TelophaseTelophase

• Chromosomes are Chromosomes are at each side & at each side & become become chromatin again.chromatin again.

• Spindle fibers Spindle fibers dissolve.dissolve.

• Nuclear Nuclear membrane membrane reforms at each reforms at each side.side.

Page 10: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Cytokinesis in Animal CellsCytokinesis in Animal Cells

• Cytoplasm and Cytoplasm and organelles are organelles are divided equally.divided equally.

• Animal cells have Animal cells have the cell the cell membrane pinch membrane pinch inward to divide inward to divide cell.cell.

• 2 identical 2 identical daughter cells.daughter cells.

Page 11: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Cytokinesis in Plant CellsCytokinesis in Plant Cells

• Cytoplasm and Cytoplasm and organelles are organelles are divided equally.divided equally.

• Cell plate forms in Cell plate forms in the middle and the middle and becomes the cell becomes the cell membrane.membrane.

• Cell wall forms Cell wall forms between the between the membranes.membranes.

Page 12: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

Binary FissionBinary Fission

• Prokaryotic cells Prokaryotic cells use this method.use this method.– Bacteria.Bacteria.

• A simple, fast A simple, fast split.split.

Page 13: The Cell Cycle. Cell Division is Mitosis For single celled organisms, this increases their population.For single celled organisms, this increases their

What are Protozoa? proto = first zoa = animals single-celled eukaryotic organisms

BACTERIA Prokaryotes are single-celled organisms that do not have a membrane-bound nucleus. Prokaryotes are single-celled organisms that do not have a

Co-Requisite – Content Standard SB3 Students will derive the relationship between single-celled and multi-celled organisms and the increasing complexity

Viruses & Bacteria 1. A)Students will derive the relationship between single-celled and multi-celled organisms and the increasing complexity of systems

Characteristics of Living Things Living things are made up of cells Unicellular – one celled organisms Multicellular – many celled organisms Remember/Review

Science - madison-lake.k12.oh.us...Many single-celled organisms still use this form of asexual reproduction. Asexual reproduction is a good way for one-celled organisms to take advantage

mrscampbellscience.weebly.commrscampbellscience.weebly.com/.../41_time_travelers_f…  · Web viewSingle and complex single-celled organisms, Sponges, Trilobites, Clams, Spiders,

Chapter 4 Cell Reproduction. Ch 4.1 – Cell Division & Mitosis A. Cell Division – increases the # of cells and causes many-celled organisms to grow 1

Cell Organisms Vocab. Terms · Cells in multi‐cellular organisms are specialized depending upon which part of the body they are located. Single‐celled Organisms Single‐celled,

Structures and Life Functions of Single-Celled Organisms

Classifying Organisms -Single-celled or -Multi-cellular

Discover Math and Science Now - About Mrs. Day€¦ · Web view(single celled organisms belonging to Domain _____, Kingdom Fungi) Protists (mostly single celled organisms belonging

Single Celled Organisms (Uni-Cellular)mslangssciencestuff.weebly.com/uploads/4/6/7/2/... · Single Celled Organisms (Uni-Cellular) Learning Goals •Compare the structures and life

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Singled-Celled Organisms Protists Bacteria Viruses

● Organisms are either: Single-celled, such as most prokaryotes and protists or

Protistans. Once upon a time Protozoa = animal one celled organisms and algae = primitive plants Then; all one celled eucaryotic organisms are protists

Animal Kingdom Facts The Vertebrates SB3: Students will derive the relationship between single-celled and multi-celled organisms and the increasing complexity

Web viewCell division—increases the number of cells and causes many-celled organisms to grow

PROTISTS Protists include the most complex single- celled organisms on Earth. Long ago, microscopic one celled protists (nummalitids) lived in oceans

Single-celled vs. Multi-celled Organismsmrswoodworthsclass.weebly.com/uploads/3/8/4/3/...Prokaryotic Organisms These cells are simple in structure, with no recognizable organelles

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Objective Compare the structures and functions of the following single-celled organisms:

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Organelle Structure and Function. Review Prokaryotes simple celled organisms No nucleus Eukaryotic cells multicellular organisms Nucleus organelles

Bacteria and Viruses Chapter 18. Bacteria Prokaryotes-single-celled organisms without an nucleus Prokaryotes-single-celled organisms without an nucleus

Chapter 10 Cell Division and Mitosis. A.Cell division- increases the number of cells and causes many-celled organisms to grow B.The Cell Cycle- series

Bacteria I.All bacteria are Prokaryotes- single celled organisms that lack a nucleus

“Prokaryotes” - single-celled organisms that do not have membrane-bound organelles

Smallest, most common, single-celled organisms that lack a nucleus

Behavior in living organisms Behavior in one celled organisms Behavior in plants Behavior in animals

Single celled organisms JDH - SD67 (Okanagan Skaha)sd67.bc.ca/teachers/jheinrich/Sci 10 pdf/Biology/Single Celled... · • Single celled organisms can be classified into 3 main categories: