Biology
1. The virus is made up of five parts and is in the size range of 10 nm-300 nm in diameter. The first is the coat made up of protein that protects the virus to a point. Next is the head that contains the genetic material for the virus. The genetic material for a virus is DNA. The two other parts are the tail sheath and the tail fibers that are used for odd jobs. I believe that a virus is not considered to be a living creature due to the fact it is a parasitic reproducer. To me it is just like ripping up a piece of paper because it is still the same thing and it isn't carrying out any other function besides reproduction. Since the virus cannot continue to do its functions without taking from a host and being a parasite it is considered an obligated parasite.
2. The adult fern plant in its dominate generation (sporophyte) develops sporangium on one side of its leaf. When meiosis is finished inside the sporangia and the spores are completed the annulus dries out releasing the spores. The spore germinates and grows into a prothallus which is the gametophyte generation. The antheridia and the archegonia are developed on the bottom of the prothallus. The archegonia are at the notch of the prothallus and the antheridia are located near the tip. Fertilization occurs when outside moisture is present and the sperm from the antheridia swim to the eggs of the archegonia. A zygote is formed on the prothallus and a new sporophyte grows.
4. Flowering plants have unique characteristics that help them survive.
One is the flower itself that contains the reproductive structures. The color of the flower helps because it may attract birds and insects that spread the plants pollen which diversify the later generation of plants. Flowers also produce fruits that protect their seeds and disperses them with the help of fruit eating animals.
5. Fungi, Animalia, and, Plantae are all believed to be evolved from
Protista. All 3 of these kingdoms are eukaryotic and their cells have a nucleus and all the other organelles. Fungi live on organic material they digest,
Plants produce their own organic material, and Animals go out and find their food. Animalia are heterotrophic whereas Plantae are photosynthetic. Fungi who digest their own food on the outside are different from animals who digest their food on the inside. Plants and animals both have organs systems but animals have organized muscle fibers and plants do not.
8. The Gasreopoda , Pelecypoda, and the Cephalapoda all have three of
Cytomegalovirus (CMV) is the most common virus in the United States that can infect almost any individual. Cytomegalovirus is also referred to as Herpesvirus-5, which belongs to a branch of Herpesviridae family. Herpesviridae has a spherical shape that contains four significant elements that are important to the viron. The four elements are the core, tegument, capsid and the envelope. Alphaherpesvirinae, Betaherpesvirinae and Gammaherpesvirinae are three subfamilies which belong to Herpesviridae. Cytomegalovirus belongs to the Betaherpesvirinae family, which also include Muromegalovirus and Roseolovirus. The Alphaherpesvirinae subfamily includes Simplexvirus, Varicellovirus, Mardivirus and Iltovirus genera. The Gammaherpesvirinae subfamily contains Lymphocryptovirus and Rhadinovirus genera. The diameter size of the virus is based on each specific family; however, the core remains the same throughout the species, which contains single layer of double stranded DNA tightly condensed in the capsid. In the tegument component, there are 30 or more viral proteins that are shapeless that encompass the capsid. Out of the four major components, the tegument has the most poorly defined structure. On the other hand, the capsid is a well-defined structure that is an icosahedron, which is composed of 162 capsomeres, 12 of which are pentons and 150 are hexons (1). Last but not least, the liquid envelope surrounds the tegument with approximately 10 glycoprotein and cellular proteins. Each subfamily under the herpesviriade has its own arrangement between the liquid envelop and the tegument layer.
The word virus comes from the Latin word, poison. A virus infects a cell and into it, inserts its DNA. The virus then multiplies inside the cell and when enough of the virus has been produced, the newly formed viruses will break out into the body of the host, destroying the cell in the process. Variola major and Variol...
Orthopoxvirus variola is the virus responsible for the well-known smallpox disease. It belongs to the Poxviridae family which is further split into the subfamilies Entomopoxivirinae which only affects insects, and Chordopoxivirinae which infects vertebrae (Hughes). It is in group one of the Baltimore Classification since it possesses double-stranded DNA. This group also includes viruses in the Herpesviridae family, certain bacteriophages, as well as the mimivirus. The linear genome consists of approximately 186 kb pair and, like all orthopoxviruses, is about 200 nm in diameter (Li; Riedel). Virus particles may be enveloped, but the majority will be nonenveloped when released from a lysed cell, ready and capable to affect another. Extracellular enveloped viruses evolve from their precursors intracellular enveloped virus and cell-associated enveloped virus and contain proteins that aid the virus in neutralizing host cell antibodies to enhance virus spread (Smith). Entrance into the host cell may be accomplished by fusion of endocytosis, contingent on the particular strain. Host cell cytoplasm is the site of poxvirus replication, therefore host nuclear enzymes are unavailable to the virus; to overcome this, DNA-dependent RNA polymerase enters the host with the virus (Hughes).
Viruses are the simplest and tiniest of microbes, and are made up of proteins, nucleic acid, and lipids. The nucleic acids contain the genetic code that helps them grow and reproduce, but only once they find their way into a living organism. Viruses themselves are not considered living organisms because they don’t have cells, they don’t metabolize nutrients, produce and excrete wastes, and they can’t move around on their own. The remains of the nucleic acid then forms a covering, called the capsid. Once the capsid gets removed, viruses use the building materials of th...
Bacteria, viruses, and prions all have different types of structures. However, bacteria and viruses are more alike in the aspect of nucleic acid. Bacteria come in numerous shapes, but most bacteria are in the shape of a sphere (cocci). Their other shapes, or structure, are rods (bacilli), spirals (spirilla), and if they’re rigid then they are called spirochetes. Bacteria will normally come in a single cell form; however they can come in more than one, and they can also form chains. A bacterium doesn’t contain a nucleus because they are prokaryotes. On the other hand, it does have nucleic acid. The nucleic acid lies in the nucleoid plasmids. Bacterium doesn’t have membrane-bounded organelles and an outer cell wall. The outer cell wall is strengthened by peptidoglycan, which protects the bacteria from collapsing or bursting. Some bacteria have the means to move. The reason they’re able to move is because they have flagella. Flagellum is a long slender tail-like structure. Virus’s structure is less complex than the structure of bacterium. All viruses are composed of two parts: the outer capsid, and the inner core. The outer capsid is made of protein subunits, and the inner core contains the DNA. Also with virus structures comes the envelope. The envelope is part of the host’s plasma membrane...
The virus is primarily spherical shaped and roughly 200nm in size, surrounded by a host-cell derived membrane. Its genome is minus-sense single-stranded RNA 16-18 kb in length. It contains matrix protein inside the envelope, hemagglutinin and neuraminidase, fusion protein, nucleocapsid protein, and L and P proteins to form the RNA polymerase. The host-cell receptors on the outside are hemagglutinin and neuraminidase. The virus is allowed to enter the cell when the hemagglutinin/ neuraminidase glycoproteins fuse with the sialic acid on the surface of the host cell, and the capsid enters the cytoplasm. The infected cells express the fusion protein from the virus, and this links the host cells together to create syncitia.
The essential component of life can be acknowledged and is made up of a nucleic acid known as DNA. DNA is the abbreviated form for the word deoxyribonucleic acid and it is the “carrier of genetic information” (McMurry, Ballantine, Hoeger, & Peterson, 1992, pg. 775). DNA contains the genetic instructions that are needed for an organism to develop, survive, and replicate, as it plays a crucial role in living systems that makes each species unique and distinctive. The multifaceted material is stored in every cell of every living organisms and it contains information about our nature, appearance, performance, etc. With the instructions that it contains, DNA is passed from the adult organism to their offspring during reproduction. (McMurry, Ballantine, Hoeger, & Peterson, 1992, pg.777).
Kingdom Protista is considered an artificial grouping because there are many forms of protist and most are unicellular, multicellular, and colonial groups. The protists have different functions and structure although they are considered eukaryotes and are still evolving.
The information gained may support or yield opposite results based on predictions being tested. My independent variable would be time and the dependent one would be the enzyme pectinase. I believe the key feature of my experimentation is the control of most factors so that the influence of a single factor can be seen clearly.
Fox, R. 2001. Invertebrate Anatomy OnLine: Artemia Franciscana. Lander University. http://webs.lander.edu/rsfox/invertebrates/artemia.html, retrieved February 13, 2011.
All living things must reproduce as it is necessary to pass down genes to the offspring to ensure species survival and prevent extention. Natural selection is the main mechanism for evolution of species. It chooses which traits are most favorable adaptations for the environment in which the species is inhabitating and which are unfavorable. The individuals of the species will then eventually be bread out of the sp...
Schizophrenia is a complicated, mostly permanent psychological disorder involving a disturbances in the relation amongst thought, emotions, and behaviour, leading to defective perception, inappropriate actions and feelings, withdrawal from reality. The National Mental Health Commission makes 10 recommendations, including reducing the use of restraint, seclusion and involuntary treatments. Recommendation 6 states, “There must be the same national commitment to safety and quality of care for mental health services as there is for general health services.”
it in a egg, put the egg in a incubator, and when it hatches it's an exact
Viruses are important to discuss because they are analyzed in almost all microbiology classes. Viruses can be characterized as, “any of a group of submicroscopic entities consisting of a single nucleic acid chain surrounded by a protein coat and capable of replication only within the cells of living organisms” (Biology). Bacteriophage are more specific in a sense that they are “a virus that infects and replicates within a bacterium” not just any living organisms cells (Biology). These viruses can replicate in 2 different cycles: lytic cycle or the lysogenic cycle. If a virus takes enters the lytic cycle it will cause infection and destruction of the host cell. This is done when the virus first penetrates the cell membrane of the host cell.
The virus is classified in the Rhabdoviridae family, a bullet shape virus. That consists of five proteins nucleoprotein (N), Phosphoprotein (P), Matrix protein (M), Glycoprotein (G) and Polymerase protein (L). Rhabdoviruses have two major structures the helical ribnucleoprotein core (RNP) and a surrounding envelope. Shortly after a human or animal is bitten the virus will move along up to the nerves and multiply inside the brain, once inside the brain it will travel back down into the rest of the bodies nerves. Once inside the brain the virus has multiplied and the animal will show signs of