Jody Wells With aid of annotated diagrams‚ discuss the relationship between the structure and function of four specialised human cells. The human body is made up of trillions of different cells; all play a huge role in the running and function of the body. They are the foundation of all living things. Each different cell has its own exclusive job. Without cells the human body would simply fail. All cells contain organelles which are the structures of the cells itself‚ organelles have individual
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monozygous twins remain discordant. According to the University of Maryland Medical Centre‚ one monozygous twin only has a 33% chance of developing type 1 diabetes if the other twin does. * monozygous twins are two children who develop from the same zygote(egg) and therefore have exactly the same genetic makeup. If one twin developes diabetes and the other doesn’t then other factors apart from genetics must be important. Sympoms There are three major symptoms
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Midterm 1 stuff (1‚ 25‚ 26‚ 27‚ 28) 2) What characterizes a prokaryotic cell? a. the lack of ribosomes b. the lack of a membrane-enclosed nucleus c. the presence of a nucleus with no DNA d. the presence of mitochondria e. having a cell wall without a cell membrane 3) Which of the following does NOT comprise a logical hierarchy of organization? a. family‚ order‚ class‚ phylum‚ kingdom b. molecules‚ cells‚ tissues‚ organ systems‚ populations c. organisms‚ populations‚ communities‚ biomes
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Biology Honors Final Exam Review Study Guide A. Intro Unit * Characteristics of life (DR.CHARGE) * DNA * Directs protein synthesis * Reproduce * Divides in mitosis (asexual reproduction) * Cells * Homeostasis * The process by which cells maintain constant internal condition (water‚ temperature) * Adaptation (Evolution) * Respond to stimulus * Growth (Development) * Energy * Heterotroph: an organism that cannot synthesize its own food
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Advanced Biology Final Exam / Fall 2011 Short Answer 1. Which of the following is a false statement regarding deoxyribonucleic acid (DNA)? 2. Which of the following properties or processes do we associate with living things? 3. Which component is not directly involved in translation? 4. The anticodon of a particular tRNA molecule is 5. Which of the following types of mutation‚ resulting in an error in the mRNA just after the AUG start of translation‚ is likely to have the
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The aim of the female reproductive system is to produce mature oocytes which match with the male spermatocyte to create offspring. Fertilisation most commonly occurs in the fallopian tubes‚ though this can also occur later in a female’s menstrual cycle if the egg has already moved down into the uterus‚ though there is a higher chance of miscarriage as the lining of the womb may continue to shed. The external female reproduction features have two functions; to allow insemination and to also protect
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Nevid‚ J.S.‚ and Fichner-Rathus‚ L. 2005). From the moment sperm fertilized an ovum‚ our destiny to be a girl or a boy is chosen. Usually at this point; 23 chromosomes from the male donor and 23 from the female come together and combine to make a “zygote”. Starting about six weeks into the pregnancy‚ our bodies began to form and create into what they are meant to be‚ and after the seventh week‚ our genetic code (XY or XX) begins to really assert itself. Gender identity is not always a term referring
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Harnessing of Solar Energy: Photosynthesis versus Semiconductor Based Solar Cell Photosynthesis and semiconductor-based solar cells are both used to harness solar energy from the sun – photosynthesis for plants and semiconductor based solar cells for human beings. Photosynthesis consists of light reactions and dark reactions. It is a process in which carbon dioxide (CO2)‚ water (H2O) and light energy are utilized to synthesize an energy-rich carbohydrate like glucose (C6H12O6) and to produce
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Babies From a helpless newborn to an active toddler: It takes just 12 short months for a baby to undergo an incredible transformation. Babies grow and change at an amazing pace‚ and every month there are new and exciting developments happening. Do you know how babies are made? We all got the basics covered. A man and woman meet‚ they have sex‚ and nine months later‚ a baby is born. But there’s a lot more to it than that. For this processes to begin there is a few things that need to happen. For
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Unit 3 Lecture Study Guide 1. List the 4 primary tissue types and give the general characteristics and functions of each one. Epithelium- The epithelium protects us from the outside world. Skin‚ absorbs. Stomach and intestinal lining‚ filters. The kidney‚ secretes. Forming of glands‚ closely attached to each other forming a protective barrier‚ always has one free surface open to outside the body or inside an internal organ‚ has no blood vessels but can soak up nutrients from blood vessels in connective
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