Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable
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possible to observe membranes directly‚ so this investigation is an indirect study of the effects of different substances and treatments on living beetroot cells. Beetroot cells have been chosen for this activity because each beetroot cell has a large central vacuole bounded by a membrane (Figure 1). Contained in the vacuole is the red pigment anthocyanin‚ which gives the beetroot its typical colour. The whole beetroot cell is also surrounded by the cell membrane. If the two membranes remain intact the
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In Biology 1115‚ I learned a great deal about cytoskeleton. I have been able to recognize the functions of molecular structures which are microtubules‚ microfilament and intermediate filaments‚ but I still have confusion about those structures. For example‚ I always misunderstand the differences between microtubules and microfilament. Therefore‚ I got wrong in some multiple choices of this midterm. I went back to the notes and read them again after seeing my midterm which can help me to clarify and
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environment. It is a movement that restores the environment that humans have damaged. Scientists have addressed the idea‚ in "A life of its own" by Michael Specter‚ of using synthetic biology to mend environmental issues. Synthetic biology combines the "elements of engineering‚ chemistry‚ computer science‚ and molecular biology…to assemble the biological tools necessary to redesign the living world" (Specter 364). There are both positive and negative impacts of a synthetic world on the environment movement
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Chapter 1 Reading and Study Guide Why This Chapter Matters 1. We are living in the golden age of biology. Biological discoveries revolutionize medicine‚ change agriculture‚ and impact human culture. 2. Life is united not by a single trait‚ but by a common set of characteristics. Appreciating what it means to be living is as complex as life itself. 3. Life exists at many levels of biological organization. Understanding how these levels interrelate provides insight into the mechanisms of living systems
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Biology Article Isaac Ayers Professor Carol Hoban SCI115012VA016-1136-001 Introduction to Biology August 2‚ 2013 * The title of the article that I have chosen for this assignment is “The Era of Memory Engineering Has Arrived”. The article begins by explaining a basic plot of a sci-fi movie in which the main character has had his memories altered by scientists using electrode caps. The article then goes into detail about how a new set of experiments‚ led by MIT neuroscientists
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Forensic biology is the application of biology to law enforcement.It includes the subdisciplines of Forensic anthropology‚ Forensic botany‚ Forensic entomology‚ Forensic odontology and various DNA or protein based techniques. Applications Forensic biology has been used to prove a suspect was at a crime scene‚ identify illegal products from endangered species solve crimes by matching crime scene evidence to suspects‚ investigate airplane bird strikes‚ and investigate bird collisions with wind turbines
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Hong Kong Diploma of Secondary Education Examination Integrated Science School-based Assessment Sample Tasks Teachers may use the sample tasks for non-profit making educational and research purposes with proper acknowledgement. © 2009 Hong Kong Examinations and Assessment Authority All Rights Reserved 2009 TABLE OF CONTENT Task C1 C2 C4 C5 C6 C7 C8 E3 Title Osmosis in Living Tissue Catalytic Activity of Enzyme Action of Electricity on Substances Encountered in Daily Life Do
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Theories of Biology University of Phoenix – Axia There are seven major theories of Biology that attempt to organize and make sense of the multitude of ideas surrounding the major theories of Biology. The theories include evolution of natural selection‚ inheritance‚ cells‚ biological classification‚ bioenergetics‚ homeostasis‚ and ecosystems. The evolution of natural selection is the theory the theory that attempts to explain how and why species are able to adapt to their environments
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Introduction to Biology I (BIO 111) Natural Sciences Division Tougaloo College Fall 2014 INSTRUCTOR INFORMATION Instructor Email Dr. Scharri Ezell Walker SEWalker.tougaloo@gmail.com SWalker@tougaloo.edu 601.977.7780 (Office) 731.31.DrSEW (731.313.7739) (Cell) Tuesday‚ 8AM-12PM Kincheloe Hall‚ K122 Phone Office Hours COURSE DESCRIPTION A comprehensive treatment of the major principles of modern biology. Topics include: cell structure‚ cell membrane‚ metabolism‚ cellular respiration‚ photosynthesis
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