Are viruses made out of cells like fungi and bacteria are?

Answer 1

NO. Viruses are not made made of cells like fungi and bacteria. A virus is a tiny bundle of genetic material - either DNA or RNA - carried in a shell called a viral coat, or capsid, which is made up of protein. Some viruses have an additional layer around this coat called an envelope. When a virus particle enters a cell and begins to reproduce itself, this is called a viral infection.

The information carried in the virus's DNA allows it to take over the operation of the cell, converting it to a factory to make more copies of itself. For example, the polio virus can make over one million copies of itself inside a single, infected human intestinal cell.

Some properties of viruses :

* posses no membranes, cytoplasm, ribosomes, or other cellular components.

* they cannot move or grow.

* they can only reproduce inside a host cell.

* they consist of 2 major parts - a protein coat, and hereditary material (DNA or RNA).

* they are extremely tiny, much smaller than a cell and only visible with advanced electron microscopes.

differences between bacteria,fungi and a virus :

bacteria :

Bacteria are much bigger than viruses, and much more complex. A typical bacterium has a rigid cell wall containing a cell membrane, which holds the cytoplasm. Within this fluid are chromosomes (made up of DNA) that hold the instructions for making new bacteria and performing other functions. There may also be loose bits of DNA called plasmids floating in the cytoplasm, and ribosomes, which are used for copying DNA so the cell can reproduce. Some bacteria have threadlike structures called flagella that they use to move around.

virus :

Viruses are much smaller, with lengths measured in millions of a millimetre. All viruses are made up of a core of genetic material ... nucleic acid, which is either DNA or RNA. This is surrounded by a protein coat. Some viruses may also be protected by an outer spikey layer called an envelope.
That's all there is to a virus! Viruses can't even reproduce by themselves ... they need to take over another cell and get it to do it for them.

fungi :

Fungi (plural for fungus) are different from both viruses and bacteria in many ways. They are larger, plant-like organisms that lack chlorophyll (the substance that makes plants green and converts sunlight into energy). Since fungi do not have chlorophyll to make food, they have to absorb food from whatever they are growing on. Fungi can be very helpful – brewing beer, making bread rise, decomposing trash – but they can also be harmful if they steal nutrients from another living organism.

Answer 2

Virus is a particle that is too small to be seen with a light microscope or to be trapped by filters but is capable of independent metabolism and reproduction within a living cell. Outside a host cell a virus is completely inert. A mature virus (a virion) ranges in size from 20 to 400 nm in diameter. It consists of a core of nucleic acid (DNA or RNA) surrounded by a protein coat. Some (the enveloped viruses) bear an outer envelope consisting of proteins and lipids.
Fungi is a group of organisms formerly regarded as simple plants lacking chlorophyll but now classified in a separate kingdom, Fungi. They can either exist as single cells or make up a multicellular body called a mycelium, which consists of filaments known known as hyphae. Most fungal cells are multinucleate and have cell walls composed chiefly of chitin. Fungi exist primarily in damp situations on land and, because of the absence of chlorophyll, are either parasites or saprotrophs on other organisms.
Bacteria is a diverse group of ubiquitous microorganisms all of which consist of only a single cell that lacks a distinct nuclear membrane and has a cell wall of a unique composition. Bacteria constitute the prokaryotic organisms of the living world. However, their classification is a controversial issue. It is now recognised, on the basis of differences in ribosomal RNA structure and nucleotide sequences, that prokaryotes form two evolutionarily distinct groups.

Answer 3

No, no, no. Viruses are NOT made out of cells, and they are NOT single cells.
Viruses are microscopic particles that infect cells of biological organisms, such as animals but also bacteria. Viruses are made of genetic material, DNA or RNA, contained within a protective coat (capside), made of proteins.
Some scientists think that viruses are not even living organisms, as they don't meet all the criteria of the generally accepted definition of life. They lack means of self-reproduction outside the host cell. It means that they can't duplicate if they don't infect a host cell. Moreover, they are not made of cells.

Answer 4

Viruses are simple one cell organisms if you think about it.

Answer 5

No, viruses are a crystalline lifeform...that is why anti-biotics have no effect on them.