Wednesday, 5 October 2011

plant cell & animal cell


all as!
Animal Cell
Plant Cell
Nucleus:
Present
Present
Cilia:
Present
It is very rare
Shape:
Round (irregular shape)
Rectangular (fixed shape)
Chloroplast:
Animal cells don't have chloroplasts
Plant cells have chloroplasts because they make their own food
Cytoplasm:
Present
Present
Endoplasmic Reticulum (Smooth and Rough):
Present
Present
Ribosomes:
Present
Present
Mitochondria:
Present
Present
Vacuole:
One or more small vacuoles (much smaller than plant cells).
One, large central vacuole taking up 90% of cell volume.
Centrioles:
Present in all animal cells
Only present in lower plant forms.
Plastids:
Absent
Present
Golgi Apparatus:
Present
Present
Cell wall:
Absent
Present
Plasma Membrane:
only cell membrane
cell wall and a cell membrane
Microtubules/ Microfilaments:
Present
Present
Flagella:

May be found in some cells
May be found in some cells
Lysosomes:


Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements. The functions of these organelles are extremely similar between the two classes of cells (peroxisomes perform additional complex functions in plant cells having to do with cellular respiration). However, the few differences that exist between plant and animals are very significant and reflect a difference in the functions of each cell.
Plant cells can be larger than animal cells. The normal range for an animal cell varies from 10 to 30 micrometers while that for a plant cell stretches from 10 to 100 micrometers. Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in animal cells. These structures include: chloroplasts, the cell wall, and vacuoles.

Chloroplasts

In animal cells, the mitochondria produces the majority of the cells energy from food. It does not have the same function in plant cells. Plant cells use sunlight as their energy source; the sunlight must be converted into energy inside the cell in a process called photosynthesis. Chloroplasts are the structures that perform this function. They are rather large, double membrane-bound structures (about 5 micrometers across) that contain the substance chlorophyll, which absorbs sunlight. Additional membranes within the chloroplast contain the structures that actually carry out photosynthesis.
Chloroplasts carry out energy conversion through a complex set of reactions similar to those performed by mitochondria in animals. The double membrane structure of chloroplasts is also reminiscent of mitochondria. The inner membrane encloses an area called the stoma, which is analogous to the matrix in mitochondria and houses DNA, RNA, ribosomes, and different enzymes. Chloroplasts, however, contain a third membrane and are generally larger than mitochondria.

The Cell Wall

Another structural difference between in plant cells is the presence of a rigid cell wall surrounding the cell membrane. This wall can range from 0.1 to 10 micrometers thick and is composed of fats and sugars. The tough wall gives added stability and protection to the plant cell.

Vacuoles

Vacuoles are large, liquid-filled organelles found only in plant cells. Vacuoles can occupy up to 90% of a cell's volume and have a single membrane. Their main function is as a space-filler in the cell, but they can also fill digestive functions similar to lysosomes (which are also present in plant cells). Vacuoles contain a number of enzymes that perform diverse functions, and their interiors can be used as storage for nutrients or, as mentioned, provide a place to degrade unwanted substances.


Lysosomes occur in cytoplasm.

Cell walls in animal cells vs. plant cells

A notable difference between animal cells and plant cells is that animal cells do not have a cell wall where as plant cells do. Both plant and animal cells have plasma membranes.

Chloroplasts

Plant cells have chloroplast for photosynthesis whereas animal cells do not have chloroplasts.

Shape of plant cells vs animal cells

  • Another difference between plant cells and animal cells is that animal cells are round whereas plant cells are rectangular.
  • Further, all animal cells have centrioles whereas only some lower plant forms have centrioles in their cells.

Vacuoles in plant cells vs. animal cells

Difference in shape and size of vacuoles

Animal cells have one or more small vacuoles whereas plant cells have one large central vacuole that can take up to 90% of cell volume.

Difference in function of vacuoles

In plant cells, the function of vacuoles is to store water and maintain turgidity of the cell. Vacuoles in animal cells store water, ions and waste.

 plant and animal cells






Plant Cells:

* have chloroplasts and use photosynthesis to produce food 
* have cell wall made of cellulose 
* A plant cell has plasmodesmata - microscopic channels which traverse the cell walls of the cells 
* one very large vacuole in the center 
* are rectangular in shape 

Animal Cells:

* don't have chloroplast 
* no cell wall (only cell membrane) 
* No plasmodesmata 
* one small vacuole 
* either circular, irregular or defined shapes depending on the type of cell


chloroplast and large vacoule 
nothing exept one is bigger. 
difference between plant cell and animal cell is this plant cell have cell wall but animal cell donot contain it plant cell contain large and permanent vacuole but animal cell contain more then one... 
One difference I know of is that animal cells have a cell wall, while plant cells have a cell membraneee. (: 
Plants generally are rooted in one place an do not move on their own (locomotion), whereas most animals have the ability to move fairly freely.Plants contain chlorophyll and can make their own food,
The main difference is that plant cells have a cell wall as well as a cell membrane. Animal cells only have a cell membrane. 

More Details:
 

1.    Plant cells have cell walls, which supports a rigid (rectangular) structure. These structures are composed of cellulose, hemicellulose, and a variety of other materials. An animal cell does not have this cell wall; as such, the shape is more dynamic. With animal cells there is a diversity of shapes although most are roughly circular to maximize surface area. 
2.    Plant cells have chlorophyll, the light-absorbing pigment required for photosynthesis. This pigment, which makes plants appear green, is contained in structures called chloroplasts (or more generally, plastids). 
3.    Similarly, chlorophyll containing plant cells go through both photosynthesis and cellular respiration, while animal cells only go through cellular respiration. 
4.    Plants cells have a large, central vacuole. While animal cells may have one or more small vacuoles, they do not take up the volume that the central vacuole does (up to 90% of the entire cell volume!). The vacuole stores water and ions, and may be used for storage of toxins. 
5.    Animal cells have centrioles, cilia (unicelluar animal cell), and lysosomes. Plant cells have no need for centrioles because their spindle fibers connect to the cell wall.

The plant cell has a cell wall and chloroplasts. An animal cell doesn't. The chloroplasts have a chemical called chlorophyll inside, which make the plant green. 

A plant cell has types of organelles called plastids. There are three kinds:

1.      Chloroplasts- site of photosynthesis
2.    Chromoplasts- contain a carotenoid pigment that can be red, orange, or yellow
3.    Leucoplasts- store starch


Plant cells generally do not contain lysosomes, which contain digestive enzymes used to break down old cell parts for reuse. 

Also, while both plant and animal cells contain vacuoles, in plant cells these tend to be larger so they have a higher capacity for holding water.

The shape of the cells are different too. Plant cells tend to be more rectangular, while animal cells have different shapes depending on the role they play in the body.

Read more: http://wiki.answers.com/Q/How_did_the_animal_and_plant_cells_differ#ixzz1ZzjfnLOb

A plant cell has a cell wall but an animal does not.Plant cells have chroloplasts.That's all I know 
Animal cells have Centrosome with two centrioles.They help during cell division plants centrioles are absent and appear only during cell division. They also have lysosomes which help break down dead... 
Plant cells have cell wall, one large vacuole, chloroplast and animal cells do not. 
Depends on how in depth you want to go... The basic difference is just the cell wall in plant cells, other than that the process is overall unchanged for mitosis. 
The plant cell has a cell wall and chloroplasts. An animal cell doesn't. The chloroplasts have a chemical called chlorophyll inside, which make the plant green. A plant cell has types of organelles... 


Animal Cell
Plant Cell
Nucleus:
Present
Present
Cytoplasm:
Present
Present
Endoplasmic Reticulum (Smooth and Rough):
Present
Present
Ribosomes:
Present
Present
Mitochondria:
Present
Present
Golgi Apparatus:
Present
Present
Microtubules/ Microfilaments:
Present
Present
Flagella:
May be found in some cells
May be found in some cells


Animal Cell
Plant Cell
Nucleus:
Present
Present
Cilia:
Present
It is very rare
Shape:
Round (irregular shape)
Rectangular (fixed shape)
Chloroplast:
Animal cells don't have chloroplasts
Plant cells have chloroplasts because they make their own food
Cytoplasm:
Present
Present
Endoplasmic Reticulum (Smooth and Rough):
Present
Present
Ribosomes:
Present
Present
Mitochondria:
Present
Present
Vacuole:
One or more small vacuoles (much smaller than plant cells).
One, large central vacuole taking up 90% of cell volume.
Centrioles:
Present in all animal cells
Only present in lower plant forms.
Plastids:
Absent
Present
Golgi Apparatus:
Present
Present
Cell wall:
Absent
Present
Plasma Membrane:
only cell membrane
cell wall and a cell membrane
Microtubules/ Microfilaments:
Present
Present
Flagella:
May be found in some cells
May be found in some cells
Lysosomes:
Lysosomes occur in cytoplasm.
Lysosomes usually not evident.


Lysosomes usually not evident.




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