Life Cycle of Rhizopus These fungi are saprobic or parasitic. The life cycle of rhizopus is mentioned in fig 1.1. They are found on a wide variety of organic substrates, including mature fruits and vegetables, feces, jellies, syrups, leather, bread, peanuts and tobacco. Some Rhizopus species are agents of human zygomycosis (fungal infection) and can be fatal. Rhizopus reproduces by ...
Read More »Chapter 8 Kingdom Fungi MCQs
Chapter 8 Kingdom Fungi MCQs For NTS MDCAT Test Chapter 8 kingdom fungi mcqs: Fungi are heterotrophic organisms also known as kingdom of recyclers. which cannot synthesize their own food. Therefore, they get their food from different sources. Fungi are found in different vast variety of habitats. These habitats are water, soil, dead and decaying organic matter. Fungi plays important ...
Read More »Kingdom Prokaryotae Monera Mcqs For NTS Tests
Kingdom Prokaryotae Monera Mcqs Kingdom prokaryotae Monera mcqs: Kingdom Prokaryotae / Monera consists of organisms with prokaryotic cells. In Greek language the meaning of word Pro is “before” and karyon refers to “nucleus”. So prokaryotes are cells that do not have true nucleus. It mainly consist of bacteria. The kingdom prokaryotae Monera mcqs are important for NTS, MCAT, NUST, AGHA KHAN and All Universities tests. kingdom prokaryotae Monera mcqs: Students ...
Read More »Biology Terms and Definitions
Terms of Biology Ecology: Study of organisms in relation to environment is called ecology. Physiology: Study of functions of different parts of body is called physiology. Histology: Study of tissues with the help of microscope is called histology. Genetics: Study of hereditary characters and their inheritance is called genetics. Zoogeography: Study of geographical distribution of animals on earth is called ...
Read More »Important Point of The Chapter bacteria And Viruses
ADDITIONAL RELATED READINGS Taxonomy is the branch of biology which deals with the naming and classification of individuals. The arrangement of organisms into systematic groups is called as classification. More than 1.5 million species of animals and more than 0.5 million species of plants are known. All organisms are related to one another at some point in their evolutionary histories. ...
Read More »Classification of virus Notes
CLASSIFICATION OF VIRUSES Different types of plant, animal and bacterial viruses are classified on the basis of morphology, cover and nucleic acid properties. Genetic Material: The genetic material may be DNA or RNA Cover: The genetic material may be naked, enveloped or complex. Morphology: On the basis of morphology viruses are classified into rod shaped (T.M.V), spherical (poliovirus), tadpole like ...
Read More »LIFE CYCLE OF BACTERIOPHAGES ( LYTIC AND LYSOGENIC CYCLE)
The bacteriophage replicates only inside the bacterial cell. There are many steps in replication. Attachment (Adsorption) of Phage to the Host Cell: First of all the bacteriophage attaches to the bacterial cell at receptor site. The receptor sites are present on the cell wall of bacterium. During attachment, week chemical union occurs between virion and the receptor site. Penetration: In ...
Read More »Diseases Caused by Viruses
DISEASES CAUSED BY VIRUSES Small Pox: Virus: It is caused by poxviruses. This virus is DNAenveloped. History: This disease occurred as epidemic in China in 12th century B.C. Until the early 20th century, it was common. Symptoms / Effects: This disease results in the formation of raisedfluid-filledvesicles on the body. These become pustules later on and form pitted scars, the ...
Read More »Structure and Shape of bacteriophage
These have two shapes (structural forms): Cubical: These are regular solid or icosahedral (having 20 triangular faces). Helical Symmetry: They are rod shaped. Many phages consist of head and tail. The heads are polyhedral but tails are rod shaped. STRUCTURE OF BACTERIOPHAGE Bacteriophage meaning bacteria eater. Earlier workers studied few phages that infect Escherichia coli. Of these the best phages ...
Read More »facts about cells 11 graders
ADDITIONAL RELATED READINGS ABOUT CELL A cell is the structural and functional unit of life. Discovery of cell is linked with the invention of microscope because most of the cells are microscopic. Robert Hooke discovered the cell in 1665 under his self-made compound microscope. According to Hooke, cell is an empty space surrounded by thick walls. He published his work ...
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