13. breaking 14. dehydration synthesis 15. sugars 16. create more double 17. amino acids 18. an enzyme 19. nucleotides 20. enzyme Chapter 3 Quiz 1. prokaryotes are so small. 2. Clarity 3. Robert Hooke. 4. They have no nucleus. 5. Bacteria and archaea 6. A small cell has a larger surface area-to-volume ratio than a large cell. 7. Rough ER 8. produce proteins. 9. Protein 10. Cytoskeleton 11. Cellulose 12. Lipids and proteins 13. Lysosome-digestion 14. Plant 15. Phospholipids 16. Protein modification
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far more complex). 2.) List and describe the two domains of prokaryotic organisms. a. Bacteria- Most are a specific shape (cylindrical‚ spiral‚ or spherical). Cell wall contains peptidoglycan. Multiply by binary fission. b. Archaea- Similar in shape‚ size‚ and appearance to Bacteria. Multiply by binary fission. Cell wall does not contain peptidoglycan. 3.) List and describe the four groups of eukaryotic microorganisms c. Algae – diverse group of photosynthetis
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similarities‚ they are also very different. The main difference between them is that a prokaryotic cell does not consist of a nucleus nor a nuclear membrane‚ while the eukaryotic on the other hand does. There are two types of prokaryotic cells‚ bacteria and archaea. The plasma membrane of the cell protects it from the outside environment. Most of them also have cell walls‚ but there are exceptions to that. Since the cells don’t have a nucleus the DNA is stored in the nucleoid. [pic] http://en.wikipedia.org/wiki/Image:Average_prokaryote_cell-_en
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Point and Nonpoint Pollution Sources Point Sources Point-source pollutants in surface water and groundwater are usually found in a plume that has the highest concentrations of the pollutant nearest the source (such as the end of a pipe or an underground injection system) and diminishing concentrations farther away from the source. The various types of point-source pollutants found in waters are as varied as the types of business‚ industry‚ agricultural‚ and urban sources that produce them. Commercial
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Unicellular: one cell‚ bacteria Multicellular 1. Prokaryotic a. No nucleus b. DNA c. Smaller and simpler d. All organisms are unicellular 2. Eukaryotic e. Nucleus (DNA in nucleus) Diversity 3 Domains 1. Archaea a. Prokaryotic 2. Bacteria b. Prokaryotic 3. Eukarya c. All have cells with a nucleus d. Plants
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LIFE ON EARTH REVISION Analysis of the oldest sedimentary rocks provides evidence for the origin of life. - Identify the relationship between the conditions on early Earth and the origin of organic molecules. - Formation of the organic molecule was the first event in the evolution of life. - The molecules provided a building block for cell formation and the food for the earliest life. - Present day life’s atmosphere contains: - Oxygen - Water - Carbon
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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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Question 1 0.5 out of 0.5 points Which of the following is not a property of life? Answer Selected Answer: Populations of organisms rarely change over time. Question 2 0.5 out of 0.5 points A newly discovered multicellular organism obtains food by digesting dead organisms. Such an organism is most likely a member of the kingdom ______. Answer Selected Answer: Fungi Question 3 0.5 out of 0.5 points Please use
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Finalized Notes Cells are small membrane bound units filled with concentrated aqueous solution of chemicals and given the ability of reproducing itself by dividing. Thus for this purpose the cells are the fundamental unit of life. If cells are modified to specific specialization they cause the cell to lose its ability to reproduce‚ as a result they end up depending on other cells for the basic needs. In all living things genes are stored in the DNA molecule‚ encoded in the same chemical code
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CATALASE Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It catalyzes the decomposition of hydrogen peroxide to water and oxygen. It is a very important enzyme in reproductive reactions. Likewise‚ catalase has one of the highest turnover numbers of all enzymes; one catalase molecule can convert millions of molecules of hydrogen peroxide to water and oxygen each second. Catalase is a tetramer of four polypeptide chains‚ each over 500 amino acids long. It contains
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