Name Class Date RNA and Protein Synthesis Information and Heredity Q: How does information flow from DNA to RNA to direct the synthesis of proteins? WHAT I KNOW 13.1 What is RNA? 13.2 How do cells make proteins? 13.3 What happens when a cell’s DNA changes? 13.4 How do cells regulate gene expression? WHAT I LEARNED SAMPLE ANSWER: RNA is a nucleic acid that carries coded genetic information. SAMPLE ANSWER: SAMPLE ANSWER: The bases in DNA—A‚ T‚ G‚ and C—form a four-letter “alphabet” that
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eukaryotic cell divides to produce two cells is called * cytokinesis. Eukaryotic cells spend most of their cell cycle in which phase? * interphase Chromatin‚ the stuff chromosomes are made of‚ is made up of what? * protein and DNA Which of the following occurs during interphase? * cell growth and duplication of the chromosomes The cell has a very narrow middle separating two bulging ends. It sort of looks like the number 8! Then you realize‚ this is a cell * Undergoing
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AICE Biology Ch 6 Jones; Ch 10 Raven Content • Replication and division of nuclei and cells • Understanding of chromosome behavior in mitosis Learning Outcomes Candidates should be able to: (a) explain the importance of mitosis in the production of genetically identical cells‚ growth‚ repair and asexual reproduction; (b) [PA] describe‚ with the aid of diagrams‚ the behavior of ( )[ ] chromosomes during the mitotic cell cycle and the associated behavior of the nuclear envelope‚ cell membrane
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detection rate will help prevent of TB 2. Methane is produced from biomass by: • Anaerobic oxygen free • Fermentation tank • Warm temperatures-30-40 degrees c • Raw material organic wastes • Organic molecules – proteins‚ carbohydrates‚ fats‚ leafy remains • Formation of acetic and ethanoic acid by cacogenic • Methanogenic bacteria • Methane produced from reducing CO2 affected by detergents 3. Rhizoboium adds nitrogen to the soil whereas
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Cell Biology Study Guide- Exam 1_______________________________________________ EXAMPLES OF MULTIPLE CHOICE/ TRUE AND FALSE QUESTIONS 1. Which of the following about the Cell Theory is FALSE? a) All cells come from preexisting cells through division b) All organisms consist of one or more cells c) The cell is the basic unit of structure for all organisms d) All cells must contain organelles e) None of the above 2. A student in a cellular biology laboratory is faced with the task of detecting
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Cell Division‚ Heredity‚ and Rcolution Practice Questions Cell Division An organism is heterozygous at two gene loci on different chromosomes. Explain how these alleles are transmitted by the process of mitosis to daughter cells. After mitosis the parent cell’s genome is dividedninto two daughter cells. In most eukaryotes‚ the nuclear envelope that separates the DNA from the cytoplasm disassembles. The chromosomes align themselves in a line spanning the cell. As the cell elongates‚ corresponding
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The cell theory‚ or cell doctrine‚ states that all organisms are composed of similar units of organization‚ called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859)‚ Mendel’s laws of inheritance (1865)‚ and the establishment of comparative biochemistry (1940). First Cells Seen in Cork While the invention of the
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Cell Biology Test 1 Tuesday‚ September 10‚ 2013 7:33 PM I. Tour of the Cell I.a. 2 cells don’t reproduce I.a.i. Most neurons I.a.ii. Skeletal muscles (too big to undergo mitosis) I.a. Cells are complexi organized I.a.i. Respond to stimuli I.a. 3 necessary components for cells I.a.i. Be able to accumulate energy from environment I.a.ii. Information storage and retrieval system I.a.iii. Boundary system to separate inside from outside I.a. Prokaryotes I.a.i. Form before the nucleus
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INTRODUCTION Levels of organization (cell to biosphere) and characteristics of life Levels: Cells->tissue ->organs & organ systems->organisms->populations->communities->ecosystems-> biosphere Characteristics of life: Cell and Organization: Each cell can only do the job it is tasked with. Example: brain cells Energy Use and Metabolism: Energy is needed many organisms. Energy is utilized in chemical reactions Response to Environmental Changes: responds to stimuli Regulation and Homeostasis: ex:
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-Carbon‚ Hydrogen & Oxygen 2. Protein (Polypeptide) (Red Meats) Monomer- Amino Acid -Hydrogen‚ Oxygen‚ Nitrogen & Carbon (Amino Acids & Sulfur) Functions- Energy‚ Hormones & Enzymes Antibody- Blood Protein helps clean blood stream Hormone Glands-Pineal‚ Pituitary‚ Thyroid‚ Adrenal‚ Pancreas‚ Ovary‚ Testy 3. Lipids -Stores Energy (Dairy) Monomer- Glycerol‚ Fatty Acids -Carbon‚ Hydrogen & Oxygen -Made up of-Oils‚ Waxes‚ Steroids‚ Phospholipids -Found in Cell Membrane -Lipid Based Steroid-
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