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What is too small to be seen with an ordinary microscope A plant cells B animal cells C bacteria D viruses?
Generally viruses are smaller than bacteria, which are themselves smaller than animal and plant cells. Therefore D is the smallest and is least likely to be visible using an ordinary microscope.
See related links for an interactive scale of cells, from the macroscopic to the microscopic, down to a single carbon atom.
What else can I help you with?
What isn't in the animal kingdom?
plants, fungi, bacteria, unicellular organisms
What are six objects that are measured in micrometers?
Bacteria Red blood cells Yeast cells Most plant and animal cells Protozoa Some viruses
What contain enzymes and defend cells from viruses and bacteria animal cells have lots of me?
The structure you are referring to is likely lysosomes, which are organelles in animal cells that contain enzymes responsible for breaking down waste materials and cellular debris. They play a crucial role in defending the cell against viruses and bacteria by digesting these harmful entities. Lysosomes help maintain cellular health by recycling components and removing pathogens.
What is the part of the cell that viruses invade?
Viruses can infect animals, plants and bacteria, and the attachments vary. In animal viruses: Animal cells have a cell membrane. Viruses attach to certain proteins in that membrane. In plant viruses: Plants can also be infected with viruses. Since they have cell walls, viruses attach to those when infecting plants. In bacteriophages (viruses that infect bacteria): Special viruses called bacteriophages attach to the cell walls of bacteria by way of proteins.
What is the difference between bacteria and viruses?
Bacteria are single-celled organisms that exist throughout the environment. They live in water, soil, and the air. Bacteria live in and on all animals and plants. Some cause disease, some are beneficial and some have no known impact on the animals they live on or in. Viruses are DNA or RNA, sometimes wrapped in protein coatings. They cannot survive outside a living cell. Viruses cannot reproduce on their own. They use the mechanisms of the living cells they infect to reproduce themselves and in the process they can damage or destroy those cells, causing disease to the animal or plant involved.
What is the simpilist animal form?
bacteria or viruses
What organisms are found in plant and animal cells?
Mostly bacteria and viruses.
What do animal and plant cells have that bacteria cells don't?
One thing bacteria has that animal and plant cells do not is restriction enzymes for fighting off the attack of viruses.
What are 5 classes of infectious agents?
Prions, Viruses, Bacteria, Fungi, and Animal Parasites.
Which field of biology does require microscope?
The field of microbiology requires the use of a microscope to study microorganisms like bacteria, fungi, and viruses that are not visible to the naked eye. Microscopes are used to observe the structure, behavior, and interactions of these microscopic organisms.
What isn't in the animal kingdom?
plants, fungi, bacteria, unicellular organisms
Biological contaminants is?
Biological contamination is living organisms such as fungi, viruses, or bacteria. Biological contamination are products that can be hazardous to an animal or human.
What tools do virologist use?
This is not a complete list but a virology lab should have access to An electron microscope (for looking at very small things), A thermocycler (for amplifying DNA using PCR) An ELISA plate reader (another test for detecting viruses.) A What_tools_does_a_virologist_usecentrifuge (used for purifying viruses) For a virologist looking at human and animal viruses they will need test human or animal cells to infect (cell cultures not the animals themselves)- and for a plant virologist test plants to infect.
What is the pathogen attacks specific cells and injects genetic materials?
Viruses attach specific cells and inject genetic material. There are viruses called bacteriophages that infect bacteria be injecting their genetic material into the bacterial host and invading their protein machinery. With animal viruses that infect animal cells (much larger than bacteria), the virus either injects genetic material OR gets into the cell whole before it begins to unleash its pathogenic effects
What are six objects that are measured in micrometers?
Bacteria Red blood cells Yeast cells Most plant and animal cells Protozoa Some viruses
How can animal bacteria be both helpful and harmful?
The acid in your stomach is a Bacteria, digesting your food and keeping you alive. But other Bacteria come from outside your body, entering from the nose or mouth, making you sick. But only Bacteria can be cured, not viruses. So there are Good Bacteria that keep you alive, and others that try to kill you.
What you see through the microscope?
Plant cells, animal cells and bacteria can be visualized through the light microscope. Although some of these samples may require staining in order for the observer to see them, the magnification offered by the light microscope is sufficient to look at the morphological structures of the types of cells mentioned above
