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CELLULAR RESPIRATION
CELLULAR RESPIRATION

... Glycolysis is the splitting of GLUCOSE (6C) to produce 2 x PYRUVATE (3C) molecules The 6C glucose is phosphorylated then split into 2 triose phosphate molecules (3C) which are then oxidised further to produce the pyruvate, some ATP and reduced NAD NAD can be reduced to NADH - it accepts H+ and trans ...
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... 100- plants Which of the following is NOT characteristic of all plants? A. They are eukaryotic B. They have cell walls C. They produce seeds D. They are multicellular ...
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... 56) Viruses are made of __protein_______ (coat) around a ____nucleic acid_______(core) 57) Disease causing agents are called ____pathogenic_____________________________ 58) Are viruses considered to be living? Explain. Viruses are not living because they do not fit all 8 characteristics of life. 58b ...
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...  Both of these molecules are Nucleic Acids. In their ...
File
File

... C) digestion ® excretion ® cellular respiration D) synthesis ® active transport ® excretion 49. Which two activities in the chart below best describe the process of transport? ...
Chapter 21 - 22
Chapter 21 - 22

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1 H NT Ch 12—Stoichiometry I. Review: Chemical Equations a
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... e. Examples:   i. Determine  the  theoretical  yield  of  silver  chromate  if  0.500  g  of  silver  nitrate  is  used   to  react  with  potassium  chromate.  If  0.455  g  of  silver  chromate  is  obtained  from  an   experiment,  c ...
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... - light independent reaction – doesn’t require light – occurs in stroma energy is converted into longer term storage molecules Photosystem – “antenna” complexes of pigments Figure 6 - chlorophyll a at “reaction center” - hands off electron to an election acceptor molecule - figure 7-4 in book Non-c ...
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... This 4.5 billion-year-old rock, labeled meteorite ALH84001, is believed to have once been a part of Mars and to contain fossil evidence that primitive life may have existed on Mars more than 3.6 billion years ago. The rock is a portion of a meteorite that was dislodged from Mars by a huge impact ab ...
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... 1. When electricity is passed through hydrogen gas in a vacuum tube, the gas glows and this light can be passed through a prism (or spectroscope) and individual lines are produced NOT a rainbow spectrum of all colors 2. This line spectrum supports the particle theory of light 3. Electron in a ground ...
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Photosynthesis



Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can be later released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek φῶς, phōs, ""light"", and σύνθεσις, synthesis, ""putting together"". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis maintains atmospheric oxygen levels and supplies all of the organic compounds and most of the energy necessary for life on Earth.Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. Furthermore, two further compounds are generated: reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP), the ""energy currency"" of cells.In plants, algae and cyanobacteria, sugars are produced by a subsequent sequence of light-independent reactions called the Calvin cycle, but some bacteria use different mechanisms, such as the reverse Krebs cycle. In the Calvin cycle, atmospheric carbon dioxide is incorporated into already existing organic carbon compounds, such as ribulose bisphosphate (RuBP). Using the ATP and NADPH produced by the light-dependent reactions, the resulting compounds are then reduced and removed to form further carbohydrates, such as glucose.The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents, such as hydrogen or hydrogen sulfide, as sources of electrons, rather than water. Cyanobacteria appeared later; the excess oxygen they produced contributed to the oxygen catastrophe, which rendered the evolution of complex life possible. Today, the average rate of energy capture by photosynthesis globally is approximately 130 terawatts, which is about three times the current power consumption of human civilization.Photosynthetic organisms also convert around 100–115 thousand million metric tonnes of carbon into biomass per year.
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