Introduction Zoonotic intestinal parasites are prevalent around the world. One of the most common and studied is transmitted by the microscopic protozoan‚ Giardia intestinalis‚ also known as G. lamblia and G. duodenalis (Ivanov‚ 2010). This eukaryotic parasite is responsible for the transmission of the most common waterborne disease‚ giardiasis‚ which causes watery diarrhea‚ vomiting‚ and has even been linked to irritable bowl syndrome (Ankarklev et. al. 2010). Since its discovery in 1681‚ Giardia
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Cell Size Control David A Guertin‚ Whitehead Institute for Biomedical Research‚ Cambridge‚ Massachusetts‚ USA David M Sabatini‚ Whitehead Institute for Biomedical Research‚ Cambridge‚ Massachusetts‚ USA Growth in biological systems is defined as the accumulation of mass‚ which leads to an increase in size. In this article‚ we discuss how cells‚ organs‚ and organisms normally control growth‚ and how deregulated growth can lead to a variety of pathological conditions. Introductory article Article
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SBI 3U1 – 07: Biology Examination Definitions Unit 1: Diversity of Living Things ➢ Species: a group of organisms that can interbreed in nature and produce fertile offspring. ➢ Morphology: the branch of biology that deals with the structure or form of organisms. ➢ Phylogeny: the evolutionary history of a species. ➢ Taxonomy: the branch of biology that identifies‚ names‚ and classifies species based on natural features. ➢ Binomial nomenclature: the system of giving a two-word Latin name to
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ortMedical Magnet Biology Summer Assignment Using half of a 3 x 5 index card‚ place the vocabulary word on the front (no lines) and the definition on the back (lines). Write legibly. Next‚ draw a picture on the FRONT of the card that helps you remember the DEFINITION. For example‚ for
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Observing the Characteristics of Life In this activity‚ you’ll identify some observable characteristics (some not) of life in videos of various organisms and describe those characteristics. Review Remember that ALL living organisms are made up of CELLS! What are seven characteristics of living things? 1. Movement 2. Reproduction 3. Sensitivity 4. Growth 5. Respiration 6. Nutrients 7. Excretion If your teacher is displaying the
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There are two processes of cell division that are very tricky. They are mitosis and meiosis. Many people often get confused with the two about their functions. They both serve as mechanisms for cell division. However‚ quite significantly‚ they are very much different in fact and occur in different situations. Mitosis and meiosis take place in different places. This is one of the first major differences between the two. Mitosis takes place within somatic cells (cells that make up the body)‚ while
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Experiment 1 1. For each structure identified‚ do you think its location affects its ability to function? Why or why not? (Hint: those buried deep in the cell probably do different things than those closer to the cell membrane). Structure does not affect function of the cells‚ cells have a particular structure that enables them to carry out their function in the best way. 2. Draw a labeled diagram of a small section of the plasma membrane and briefly describe its structure and function
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The cytoskeleton helps to maintain cell shape. But the primary importance of the cytoskeleton is in cell motility. The internal movement of cell organelles‚ as well as cell locomotion and muscle fiber contraction could not take place without the cytoskeleton. The cytoskeleton is one of a few biological areas with broad potential for drug discovery and development and has been scientifically validated in a wide variety of human diseases. The concept of the cytoskeleton was first introduced by
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A plants volatile organic compound (VOC) composition is the hand that swats unwanted visitors‚ welcomes visitation from much needed pollinators‚ and the substantial determinant in a plants identity and overall evolutionary fitness within the plant community. Understanding the mechanics of volatile formation is essential in interpreting their importance in plant life‚ and in plant-animal interactions. A huge allocation of energy is assumed to be given to the production of volatiles‚ and is therefore
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Mia Librie Period 3 1/3/15 Animal Cell There are two types of cells that exist. Prokaryotic cells are simple cells that have few organelles. These cells don’t have a nucleus‚ but do have DNA. The DNA acts as a sort of “blueprint” for growth and reproduction in the cell. Prokaryotes are things like Bacteria. Eukaryotic cells are a lot more complex than a prokaryotic cell. These cells are able to convert food to energy‚ break down waste products‚ digest food‚ and assist with reproduction of
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