Essays Tagged: "Endoplasmic reticulum"


toothpaste gel. It usually constitutes a little more than half the volume of a typical animal cell.Endoplasmic Reticulum - The endoplasmic reticulum (ER) is a folded membrane that forms a network of ...

(5 pages) 138 0 3.0 Aug/1996

Subjects: Science Essays > Biology

Plan cells.

sacs of fluid or gel-like substances. The Golgi Apparatus takes proteins in transport sacs from the endoplasmic reticulum and sends it through a series of these membranes. The proteins are then "modif ... brane protects the organelle, and the inner membrane is folded into a series cristae or long folds. Endoplasmic Reticulum Size: Highly variable Basic Function: * Serves as "transportation system" for ...

(3 pages) 82 1 3.8 Mar/2003

Subjects: Science Essays > Microbiology


Proteins made from ribosomes attached to the roughendoplasmic reticulum enter the lumen of the ER and moveto the smooth endoplasmic reticulum. A small ... -----------Ribosomes are the site of protein synthesis in thecytoplasm. They can be attached to the endoplasmicreticulum or lie free within the cytoplasm. When severalribosomes are making the same pro ...

(3 pages) 77 0 4.0 Jun/2003

Subjects: Science Essays > Biology

More Bio notes from next lesson on Cells and Microscopes.

olecular traffic is directed more precisely by an extensive system of internal membranes called the endoplasmic reticulum. Like the plasma membrane that surrounds the cell, the ER is composed of lipid ...

(3 pages) 82 2 5.0 Aug/2003

Subjects: Science Essays > Biology

Eukaryotic Cells, all organelles explained with functions.

no longer needed in the cell. Contractile vacuoles are used to pump excess water out of a cell.The endoplasmic reticulum is a maze of membrane that accounts for over half the membrane system in a cel ...

(4 pages) 106 0 4.0 Nov/2003

Subjects: Science Essays > Biology

Descriptions of the components of a plant cell.

utation" (the essence of evolution) and the two cells would carry on with what they are doing.Rough Endoplasmic ReticulumThe rough endoplasmic reticulum (rough ER) is a thin membrane like structure th ... es, these are RNA rich structures produced by the nucleus where the protein synthesis occurs.Smooth Endoplasmic ReticulumThe smooth endoplasmic reticulum (smooth ER) is like the large intestines becau ...

(7 pages) 81 1 3.7 Jan/2004

Subjects: Science Essays > Microbiology

This is a assignment on lipids

ranes in the cytoplasm through which materials can be transported and in which proteins accumulate. Endoplasmic Reticulumc)Site of ribosomal RNA synthesis. Nucleusd)Partially permeable layer about 7.5 ...

(4 pages) 43 1 2.3 Feb/2004

Subjects: Science Essays > Biology

The cell and Neoplasm (cancer)

and consists of many organelles which all have their own part to play in the function of the cell. Endoplasmic reticulum is a network of tubes mainly used for protein synthesis and breaking down toxi ... network of tubes mainly used for protein synthesis and breaking down toxins, there are two types of endoplasmic reticulum: smooth and rough, it is known as rough because it has ribosomes attached to i ...

(8 pages) 43 0 5.0 Mar/2004

Subjects: Science Essays > Biology

Cell City

special carts, Chromosomes, which can deliver the widget anywhere in the city through the highways, Endoplasmic Reticulum. In order for a widget to be exported, the carts take the widget to the postal ...

(1 pages) 18 0 3.0 Oct/2004

Subjects: Science Essays

Notes on Cell Structures

):* Free ribosomes are suspended in the cytosol* Bound ribosomes are attached to the outside of the endoplasmic reticulum or nuclear envelop* Endomembrane System - organelles within this system are re ... or by the transfer of membrane segments as tiny vesicles (sacs made of membrane); transport system* Endoplasmic reticulum consists of a network of membranous tubules and sacs called cisternae; continu ...

(7 pages) 84 0 4.2 Oct/2004

Subjects: Science Essays > Biology

Animal Cells

(2 pages) 28 0 4.0 Nov/2004

Subjects: Science Essays > Biology


the animal cells don't. Plant cells have nucleus, chromosomes, cell membrane, cell wall, cytoplasm, endoplasmic reticulum, chloroplasts, vacuole, and mitochondria. Some of plant cell structures are si ... imal cells both have something in common, they have nucleus, chromosomes, cell membrane, cytoplasm, endoplasmic reticulum, vacuoles, and mitochondria. But they also had some difference; plant cells ha ...

(2 pages) 80 4 3.5 Oct/2005

Subjects: Science Essays > Biology

Cell Organelles

hundreds or thousands of ribosomes may exist in the cytoplasm.* It may also be found bounded to the endoplasmic reticulum.* Ribosomes spit into two when not synthesizing proteinMitochondria* Mitochond ... rovide the cell with energy.* They also create ATP via the thylakoid membrane during photosynthesis.Endoplasmic Reticulum (ER)* The ER is like a transport tunnel for molecules targeted for certain mod ...

(2 pages) 20 0 3.0 Sep/2006

Subjects: Science Essays > Biology

Neuronal Functions

e just like any other cell in the body in that they contain organelles (i.e. nucleus, mitochondria, endoplasmic reticulum, etc.). What make them special are the locations and numbers of component part ...

(7 pages) 54 0 5.0 Dec/2006

Subjects: Social Science Essays > Psychology

Biology Grad Standard

as our golgi Apparatus. Next we have our subway and has many passages around town. This acts as our Endoplasmic Reticulum. Next as our food supply is we have Al's Groceries & More. This acts as ou ...

(1 pages) 290 0 0.0 May/2001

Subjects: Literature Research Papers

The Effect of Gibberellic Acid on a Plant's Growth

diterpene acids that are synthesized by the terpenoid pathway in plastids and then modified in the endoplasmic reticulum and cytosol until they reach their biologically-active form" (Wikipedia, 2006) ...

(3 pages) 19 0 3.7 Nov/2007

Subjects: Science Essays > Biology > Plant Biology

E.r., the golgi body and

nds of structures with membranes crowd the eukaryotic cytoplasm, the most numerous being called the endoplasmic reticulum (ER), a dense network of membranes running through the cytoplasm of every cell ... ork of interconnected tubes (cisternae), which form a connecting channel throughout the cytoplasm. 'Endoplasmic' means 'inside the cytoplasm', and 'reticulum' means 'network'. The E.R. can make up a s ...

(5 pages) 598 0 0.0 Feb/2008

Subjects: Science Essays > Biology

Cell Organelles

to occur-Contain the DNA, essential for inheritance-Produce ribosome’s (nucleolus)-Produce RNAEndoplasmic Reticulum (ER)•Series of membranes creating channels within the cytoplasm•2 ty ...

(3 pages) 13 0 1.0 Feb/2008

Subjects: Science Essays > Biology

The Endomembrane System

the endomembrane system it is these bilayers that cover structures like the nucleus, vacuoles, the endoplasmic reticulum (ER), vesicles, and the cell itself.It is because of the unique properties of ... uous with the rough ER and has ribosomes its function is similar to that of the plasma membrane.The endoplasmic reticulum extends out form the nuclear envelope it too is made of a phospholipid bilayer ...

(2 pages) 5073 0 5.0 Nov/2008

Subjects: Science Essays > Biology

Energy and Metabolism; Cell Structure

he Golgi apparatus stores the proteins and then later transports the proteins that were made in the endoplasmic reticulum (, and releases them either inside or outside the cell.Mitoc ...

(6 pages) 36 0 5.0 Mar/2009

Subjects: Science Essays > Biology