Essays Tagged: "Cell"

Biology experiment on osmosis for gcse very good got an A* as course work so do not miss out

use the low concentrated area tries to dilute the opposite via osmosis.The effects osmosis has on a cell are either that it becomes turgid and hard as water enters the cell or it becomes dehydrated (t ... id and hard as water enters the cell or it becomes dehydrated (this is called plasmolysing in plant cells) as water leaves the cell and the solution enters. There is a change of mass, volume, texture ...

(15 pages) 314 2 4.2 Mar/2002

Subjects: Science Essays > Biology > Plant Biology

Cells.

sts andmitochondria, convert one form of energy into another.While chloroplasts are unique to plant cells, mitochondriaare found in both plant and animal cells.---------------------------------------- ... -----------------------------------------------Mitochondria are often called the powerhouses of the cell:just as a powerhouse burns fuel to produce electricity,the mitochondria convert the chemical en ...

(3 pages) 77 0 4.0 Jun/2003

Subjects: Science Essays > Biology

This essay follows the evolutionary process of life in every aspect from comparing the big bang and biblical beliefs to human procreation.

o answer the question 'what is life?' In attempt to do so I will touch upon the topics of creation, cellular reproduction, osmosis and diffusion, sexual and asexual reproduction, genetics, and evoluti ... al as to our origin, but the question, most likely, will always go unanswered.Life is Packaged Into CellsThere is obviously a difference between living and non-living things. In order to classify some ...

(14 pages) 102 1 2.7 Nov/2003

Subjects: Science Essays > Biology > Human Biology

Cells (note, these are notes for Ch. 4 in Modern Biology text)

cells= the basic units of living organismsVan Leeuwenhoek= used the simple light microscope (one len ... signed the early compound microscope (1655); looked at cork; he saw little shapes which looked like cells in a jail (monastery), he called them "cells".Matthias Schleiden= all plants are composed of c ... ias Schleiden= all plants are composed of cells (1830)Theodore Schwann= all animals are composed of cellsThe Cell Theory:1. all organisms are composed of one or more cell2. the cell is the basic unit ...

(1 pages) 39 0 1.0 Apr/2004

Subjects: Science Essays > Biology

The Effect Of Temperature On a Cell Membrane's Permeability

hat effect an increase in the surrounding temperature has on the plasma membrane of a typical plant cell structure.Hypothesis:An increase in temperature will damage and denature the plasma membrane an ... oplasm and other substances contained within the membrane to leak out.Introduction:The purpose of a cell membrane is to control the transport of substances moving into and out of a cell. The membrane ...

(5 pages) 111 0 4.7 Jun/2004

Subjects: Science Essays > Biology

Difference between asexual and sexual

ated thanks to a somatic (non sexual) and totipotent(which has kept all its genetic potentialities) cell. The generatedorganism is identical to the parental cell: the reproduction proceeding isnamed m ... organism is identical to the parental cell: the reproduction proceeding isnamed mitosis (one mother cell gives rise to two daughter cells identical to themother cell). In such reproduction, genetic re ...

(1 pages) 41 0 3.0 Jul/2004

Subjects: Science Essays > Biology

Emotional Cyborg

ed Experiment B61 - no name, no personality, no individuality.I am insignificant to the Cyborgs. My cell is bare and dark- no light, no space, no freedom. I have been imprisoned. I cannot relate to th ... t they conducted experiments with humans to see if the were able to craft new Cyborgs by recreating cells from a deceased organ. I was dumbfounded, for what had come next. Eve was an experimental Cybo ...

(3 pages) 26 0 3.0 Aug/2004

Subjects: Literature Research Papers > Creative Writing

Emily Dickinson: "My Life Had Stood-A Loaded Gun"

3 from ."Emily Dickinson: Lecture." Retrieved 14 September, 2003 from .Shoptaw, John. "Lives of The Cell." Journal x, Autumn 1996, 1(1). Retrieved 14 September, 2003 from .

(3 pages) 79 0 3.5 Apr/2005

Subjects: Humanities Essays > Classical Studies

Cells & Organelles Through the Electron Microscope

Cells are the smallest structures capable of basic life processes, such as taking in nutrients, expe ... s, such as taking in nutrients, expelling waste, and reproducing. All living things are composed of cells. Some microscopic organisms, such as bacteria and protozoa, are unicellular, meaning they cons ... oscopic organisms, such as bacteria and protozoa, are unicellular, meaning they consist of a single cell. Plants, animals, and fungi are multicellular, meaning they are composed of a great many cells ...

(2 pages) 27 0 0.0 May/2005

Subjects: Science Essays > Biology

The benefits of cloning

The Benefits of CloningCloning involves taking a cell from a living organism and using it to create another organism with the same genetic coding. Th ... isms. Another benefit of cloning is called therapeutic cloning, which enables the creation of steam cells. These cells are multifunction that can be transplanted to act like other cells, such as brain ... ifunction that can be transplanted to act like other cells, such as brain cells, spinal cord, liver cells, etc., since it is a clone the steam cell will be identical to the original cells or organs. S ...

(1 pages) 15 0 0.0 Jun/2005

Subjects: Humanities Essays

Cells.

Cells are the structure and function of all the animals' and plants' bodies. But animals and plants' ... the same, some of them are and some of them aren't. All living things are made up with one or more cells. Every organelle looks different from others and they all have their own functions.Plant cells ... ir own functions.Plant cells have different size and shapes but they all have the same parts. Plant cells and animal cells are different, plant cells have different structures that the animal cells do ...

(2 pages) 80 4 3.5 Oct/2005

Subjects: Science Essays > Biology

Discuss the similarities and differences between prokaryote and eukaryote cells.

The cell is the basic functioning unit of organisms in which chemical reactions take place. These reacti ... e place. These reactions involve an energy release needed to support life and build structures. The cell consists of membrane bound organelles, which are responsible for the division of labour. There ... e bound organelles, which are responsible for the division of labour. There are two main classes of cells- Prokaryotes which are cells without a nucleus, where the DNA is spread around the cytoplasm o ...

(3 pages) 57 0 3.7 Oct/2005

Subjects: Science Essays > Biology

Cell walls revised.

Plant cells have a cell wall, large central vacuole, and plasmodesmata.Like other eukaryotes, plants have ... r eukaryotes, plants have a nucleus, plasma membrane, mitochondria, and other organelles, but plant cells differ from animal, fungal, and protist cells in a number of important ways. The most obvious ... , and protist cells in a number of important ways. The most obvious difference is the presence of a cell wall which surrounds each cell. It is composed primarily of cellulose, a complex carbohydrate m ...

(2 pages) 16 0 0.0 Dec/2005

Subjects: Science Essays > Biology

Active and Passive Transport

Active and passive transport are the ways in which cells allow things to move into andout of the cell through the cell membrane. They include many diff ... many different ways to transportthings. Passive transport requires no expenditure of energy by the cell. However, Activetransport requires ATPs which have energy in order for it to move something thr ... wever, Activetransport requires ATPs which have energy in order for it to move something through thecell membrane. There are different types of transport to suit the sizes of molecules as well.Passive ...

(2 pages) 35 0 3.7 Sep/2006

Subjects: Science Essays > Biology > Plant Biology

"Cell" by Stephen King: Reflective Letter / Short Summary

December 11, 2006Dear Mrs. D..,Subject: Reflective LetterThe book that I chose to read was Cell by Stephen King. Cell is fictional horror story that includes references to several U.S. issues ... an populace, somebody, somewhere, triggers “The Pulse”, a signal sent out over the global cell-phone network, which instantly strips any cell-phone user of his or her reason and humanity, lo ...

(3 pages) 45 0 0.0 May/2007

Subjects: Literature Research Papers > North American

Cloning

ing a Scottish Blackface ewe's enucleated oocyte, they injected a Finn Dorset nucleus to form a new cell. Soon after the new cell was placed into a surrogate mother, it gave birth to a lamb named Doll ... roduct of Dolly proved otherwise.THE CREATION OF DOLLY The first step to cloning Dolly was taking a cell from a Finn Dorset ewe and placing it in a culture where there was very little concentrations o ...

(2 pages) 5 0 0.0 May/2001

Subjects: Science Essays > Genetics & Genome Projects

Biology Definitions

Cellulose A straight chain polymer of glucose molecules secreted by plants and Used as structural su ... ht chain polymer of glucose molecules secreted by plants and Used as structural supporting material.Cell wall A relatively rigid structure composed of cellulose that encloses the Cells of plants. The ... rigid structure composed of cellulose that encloses the Cells of plants. The cell wall gives these cells their shape and limits their Expansion in hypotonic media.Chloroplasts A group of structures t ...

(5 pages) 27 0 3.0 Oct/2001

Subjects: Science Essays > Biology

English TTC

OAC BIOLOGY LAB #1 CELL FORM AND FUNCTION LAB HOME/LINKS The design of organisms, organs, tissues, cells and even bioch ... : By conducting this lab it will allow you to study the relationship between form and function at a cellular level. First you will examine the cells outlined in the table below. This table also lists ... t you will examine the cells outlined in the table below. This table also lists the function of the cell and the name of the slide(s) upon which it can be found. Once you have collected this data, you ...

(5 pages) 943 0 5.0 Aug/2001

Subjects: Science Essays > Biology

Energy and Metabolism; Cell Structure

Living cells are always categorized into two specific types of cells which are the eukaryotic and prokaryot ... hich will account for the boundless assortment of life.This week I will be discussing the bacterial cells: Plasma membrane and the Ribosome along with organelles: Golgi apparatus and Mitochondria.Plas ... e things flow inward and some things to flow outward. The Plasma membrane stores all the fluids and cell parts inside the membrane and keeps anything of harm out.Composition: The Plasma membrane is no ...

(6 pages) 36 0 5.0 Mar/2009

Subjects: Science Essays > Biology

biodiversity

Biodiversity and natural resources Chapter 4.1 Plant StructureThe structure of a plant cell - I can compare the ultrastructure of plant cells with that of animal cells:Plant cells have di ... tructure of plant cells with that of animal cells:Plant cells have different organelles from animal cells OrganelleDescriptionFunctionCell WallArigid structure that surrounds plant cells. ... ionCell WallArigid structure that surrounds plant cells. It's made mainly of the carbohydrate celluloseSupports plant cells.Middle lamellaThe outermost layer of the cell.This layer a ...

(4 pages) 0 0 0.0 Sep/2013

Subjects: Science Essays > Biology