onion root tip lab n.
Download
Skip this Video
Download Presentation
Onion Root Tip Lab

Loading in 2 Seconds...

play fullscreen
1 / 10

Onion Root Tip Lab - PowerPoint PPT Presentation


  • 274 Views
  • Uploaded on

Onion Root Tip Lab. Rachel Hildreth Shanna Rentz. Parts of the Onion Root. Region of Maturation- where root hairs develop and cells differentiate -------------------------- -----------> Region of Elongation- area in which growth occurs -------------------------- ----------->

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Onion Root Tip Lab' - xaviera-camacho


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
onion root tip lab

Onion Root Tip Lab

Rachel Hildreth

Shanna Rentz

parts of the onion root
Parts of the Onion Root
  • Region of Maturation- where root hairs develop and cells differentiate

------------------------------------->

  • Region of Elongation- area in which growth occurs

------------------------------------->

  • Apical Meristem- region containing the highest percentage of cells undergoing mitosis

------------------------------------>

  • Root Cap- functions in protection

-------------------------------------->

4 phases of mitosis
4 Phases of Mitosis
  • Prophase
  • Metaphase
  • Anaphase
  • Telophase/Cytokinesis (sometimes referred to 5th)
interphase pre mitosis
Interphase (Pre-Mitosis)

Cell prepares for division by:

  • replicating DNA and organelles
  • increasing cell size
prophase
Prophase

Cell prepares for nuclear division by:

  • condensing DNA into movable packages called chromosomes
metaphase
Metaphase

Cell prepares chromosomes for division by:

  • aligning chromosomes at cell equator
  • attaching spindle fibers from each new daughter cell pole to each chromosome at the centromere
anaphase
Anaphase

Chromosomes divide:

  • spindle fibers pull chromosomes apart
  • one-half of each chromosome (chromatid) moves to a new daughter cell
telophase cytokinesis
Telophase/Cytokinesis

Cytoplasm divides:

  • DNA decondenses and two nuclei form
  • new cell wall (cell plate) appears between the two nuclei to form two new daughter cells