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Notably, prokaryotic cells lack a nucleus and membranous organelles.

2.* When given a description, determine whether a cell is prokaryotic or eukaryotic and explain why.

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Ribosomes are found in both prokaryotes and eukaryotes.

Read II. The Prokaryotic Cell: Bacteria: B. Prokaryotic CellStructure, 1. The Cytoplasmic Membrane in your E-text and answer the 3 learning objectives for this section.

The cell contains large numbers of ribosomes that are used for protein synthesis.

Every type of eukaryotic organism has its own unique collection of chromosomes.The fact that nuclei are present in all eukaryotic cells was recognized as early as 1833 by Robert Brown, and it is from the name "true nucleus" that we get the word "eu-karyote".

Concept map for Prokaryotic and Eukaryotic Cells

The nucleus communicates with the ribosomes to control protein synthesis. It does this by making mRNA copies of the genes (recipes) for the proteins that the cell needs to build. The mRNA's are on the surface of the ribosome.

Prokaryotic cells are generally much smaller and more simple than eukaryotic (see Fig. 1). Prokaryotic cells are, in fact, able to be structurally more simple because of their small size. The smaller a cell, the greater is its surface-to-volume ratio (the surface area of a cell compared to its volume).

When are ribosomes used in the process of protein synthesis

1. Briefly describe why, in terms of differences in cell size, a eukaryotic cell is structurally more complex and compartmentalized than a cell that is prokaryotic.

These common features are:

DNA, the genetic material contained in one or more chromosomes and located in a nonmembrane bound nucleoid region in prokaryotes and a membrane-bound nucleus in eukaryotes

Plasma membrane, a phospholipid bilayer with proteins that separates the cell from the surrounding environment and functions as a selective barrier for the import and export of materials

Cytoplasm, the rest of the material of the cell within the plasma membrane, excluding the nucleoid region or nucleus, that consists of a fluid portion called the cytosol and the organelles and other particulates suspended in it

Ribosomes, the organelles on which protein synthesis takes place

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  • Protein and RNA complex responsible for protein synthesis.

    Compartmentalization of metabolic processes makes eukaryotic cells very efficient and allows them to increase in size.

  • Prokaryotic Cell and Eukaryotic Cell ..

    Note that the cell wall of prokaryotes differs chemically from the eukaryotic cell wall of plant cells and of protists.

  • It is the site of protein synthesis

    Eukaryotic cells are more complex than prokaryotic cells and are found in a great many different forms.

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Prokaryotic cells are structurally simpler than eukaryotic cells

According to the cell theory, the cell is the basic unit of life. All living organisms are composed of one or more cells. Based on the organization of their cellular structures, all living cells can be divided into two groups: prokaryotic and eukaryotic (also spelled procaryotic and eucaryotic). Animals, plants, fungi, protozoans, and algae all possess eukaryotic cell types. Only bacteria have prokaryotic cell types.

Organization - Prokaryotic and Eukaryotic ..

A large surface-to-volume ratio, as seen in smaller prokaryotic cells, means that nutrients can easily and rapidly reach any part of the cells interior. However, in the larger eukaryotic cell, the limited surface area when compared to its volume means nutrients cannot rapidly diffuse to all interior parts of the cell. That is why eukaryotic cells require a variety of specialized internal organelles to carry out metabolism, provide energy, and transport chemicals throughout the cell. Both, however, must carry out the same life processes. Features distinguishing prokaryotic and eukaryotic cells are discussed on the following pages. All of these features will be discussed in detail later in Unit 1.

12/01/2018 · All prokaryote and eukaryote ..

1. There are two basic types of cells in nature: prokaryotic and eukaryotic.
2. Prokaryotic cells are structurally simpler than eukaryotic cells.
3. The smaller a cell, the greater its surface to volume ratio.
4. The smaller the surface to volume ratio, the more structurally complex (compartmentalized) a cell needs to be in order to carry out life functions.
5. There are fundamental differences between prokaryotic and eukaryotic cells.
6. Bacteria are prokaryotic cells; fungi, protozoa, algae, plants, and animals are composed of eukaryotic cells.
7. Viruses are not cells so they are neither prokaryotic nor eukaryotic.

The rough ER is the site of protein synthesis in a cell ..

Genetic control of the cell is carried out by the production of RNA in the nucleus (the process of transcription) and the subsequent transfer of this RNA to a ribosome in the cytoplasm, where protein synthesis (the process of translation) is directed.

the cell cannot complete protein synthesis

a. The nuclear body is bounded by a nuclear membrane having pores connecting it with the endoplasmic reticulum (see Fig. 2 and Fig. 3).
b. It contains one or more paired, linear chromosomes composed of deoxyribonucleic acid (DNA) associated with histone proteins.
c. A nucleolus is present. Ribosomal RNA (rRNA) is transcribed and assembled in the nucleolus.
d. The nuclear body is called a nucleus.

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