What Is A Cell
Páginas: 3 (726 palabras)
Publicado: 5 de diciembre de 2012
What is a Cell?
A cell can be defined as the "structural and functional unit of life". Let us understand the cell through the following analogy. Think of your school building. Each building ismade up of a number of classrooms. Each classroom has four walls. Each wall is made up of bricks. Structurally, each brick is the smallest unit of your school building. So is the cell with respect to thebody, that is, the structural unit. To understand the functional significance of a cell, let us consider the order of a class. Each class has a number of students. Out of these students some aremonitors. These monitors report to the class teacher who looks after the overall functioning of his/her class. The smallest functional unit of a class is a student. So is the cell for the body. The bodiesof both plants and animals are made of cells. However, they are not a carbon copy of each other. Our study of plant cell vs animal cell in the succeeding paragraphs will help us understand thedifferences between plant cell and animal cell.
An Overview
There are structural and functional differences between plants and animals. These are manifested in the form of plant cell and animal celldifferences. However, they are not entirely dissimilar due to the fact that they are both living things and the basic requirements are the same.
Both plant and animals are eukaryotes, that is, theyhave a well-defined cell nucleus that houses chromosomes. They both have cell membrane surrounding the cell that regulates the movement of substances in and out of the cell. The various plant cellorganelles float in the fluid called the cytoplasm which provides protection and a medium for transfer of materials within the cell. Plant and animal cell comparison in the table below will give us abetter understanding of the difference between these cells.
A comparative study of the cells is done by first providing diagrams of a plant cell and an animal cell followed by a table that lists the...
A cell can be defined as the "structural and functional unit of life". Let us understand the cell through the following analogy. Think of your school building. Each building ismade up of a number of classrooms. Each classroom has four walls. Each wall is made up of bricks. Structurally, each brick is the smallest unit of your school building. So is the cell with respect to thebody, that is, the structural unit. To understand the functional significance of a cell, let us consider the order of a class. Each class has a number of students. Out of these students some aremonitors. These monitors report to the class teacher who looks after the overall functioning of his/her class. The smallest functional unit of a class is a student. So is the cell for the body. The bodiesof both plants and animals are made of cells. However, they are not a carbon copy of each other. Our study of plant cell vs animal cell in the succeeding paragraphs will help us understand thedifferences between plant cell and animal cell.
An Overview
There are structural and functional differences between plants and animals. These are manifested in the form of plant cell and animal celldifferences. However, they are not entirely dissimilar due to the fact that they are both living things and the basic requirements are the same.
Both plant and animals are eukaryotes, that is, theyhave a well-defined cell nucleus that houses chromosomes. They both have cell membrane surrounding the cell that regulates the movement of substances in and out of the cell. The various plant cellorganelles float in the fluid called the cytoplasm which provides protection and a medium for transfer of materials within the cell. Plant and animal cell comparison in the table below will give us abetter understanding of the difference between these cells.
A comparative study of the cells is done by first providing diagrams of a plant cell and an animal cell followed by a table that lists the...
Leer documento completo
Regístrate para leer el documento completo.