Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Cells

No description
by

on 6 September 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Cells

Cells
THE CELL THEORY
1. All living things are composed of one or more cells.
2. Cells are the basic unit of structure of all living things.
--The lowest level of structure capable of performing all the activities of life is the cell.
--Unicellular organisms-composed of one cell
-all of life’s activities occur within that single cell.
--Multicellular organism
-each cell carries on most of the major functions of life.
3. All presently existing cells arose from previously existing cells
--Cells divide to form new cells and is the basis for cell reproduction and for the growth and repair of all multicellular organisms

Organelle
Cell structure that performs a specialized function within a eukaryotic cell.
Found in Plant and Animal Cells
-Supplies the cell with energy
-site for cellular respiration

Mitochondria
-where protein synthesis takes place
-located on the endoplasmic reticulum or cytoplasm
Ribosomes
Endoplasmic Reticulum (ER)
-transports materials throughout the inside of the cell
has ribosomes attached to the surface meaning it is ribosome-studded
Rough ER
no attached ribosomes
Smooth ER
modifies, collects, packages, and distributes molecules (proteins) within the cell or outside the cell
Golgi Apparatus
-AKA plasma membrane
-encloses the cell
-regulates the passage of materials between the cell and its environment
-aids in protection and support of the cell
-semi-permeable-allows what it needs in and gets rid of what it does not need

Cell Membrane
-AKA nuclear envelope
-surrounds the nucleus of the cell
-regulates the passage of materials between the nucleus and the cytoplasm
Nuclear Membrane
-the "brains of the cell"
-contains the genetic material (chromosomes made of DNA)
Nucleus
-semi-fluid material inside the cell containing molecules and the organelles
-bound by the cell membrane
Cytoplasm
-store materials such as water, salts, proteins, and carbohydrates
-much smaller in animal cells
-plants have a large central vacuole
Vacuoles
-contain chlorophyll-green pigment
-uses sunlight to create food through photosynthesis
Chloroplast
-surrounds the cell membrane for protection and support
-allows some substances to pass in and out of the cell
-also found in bacteria, fungi, and some protists
Cell Wall
Found in Plant Cells Only
Found in Animal Cells Only
contain enzymes to help digest (break down) food
Lysosomes
short hair-like projections responsible for movement of animal cells or protists
Cilia
long whip-like projections responsible for the movement of some animal cells, bacteria, or protists
Flagella
Prokaryotic Cells
-DO NOT have a true nucleus
-DNA is not completely separated from the rest of the cell by a nuclear membrane and is not arranged in strands (chromosomes)
-DO NOT have membrane bound organelles
-Bacteria
Eukaryotic Cell
-has a TRUE nucleus
-DNA is organized into chromosomes
-chromosomes are separated from the cytoplasm by a nuclear membrane
-have membrane bound organelles
-animal, plant, fungi, and protist
Prokaryotes vs Eukaryotes
Prokaryotic cells
-do not have most of the organelles found in a eukaryote
-do not contain mitochondria
-get energy from the sunlight or chemicals in the environment
-DO have ribosomes for protein synthesis
-are unicellular organisms--such as bacteria
Full transcript