BCH1048 Tutorial 7 - organelles/macromolecules/structures...

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BCH1048 Life Sciences Mid-term Quiz
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Nucleoid region ( Nucleoid region ( P— ) part A: Multi±le Choice Questions
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Codons ) in a gene specify the amino acid sequence ( H ± ² • “ ) of a polypeptide
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Eco RI site 1 1 1 +
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Cilia on cells lining the respiratory tract Cilia on cells lining the respiratory tract
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Part B. (a) What is a cell? Briefly describe the features of a cell. (10 marks) Cell—the basic structural building block of living organisms Important features of a cell: to reproduce, regulate its internal environment, take in and use energy, respond to the environment around it, etc. The concept of tissue, organ and system in multicellular organisms Prokaryotic and eukaryotic cells Differences between prokaryotes and eukaryotes in terms of size,
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Unformatted text preview: organelles/macromolecules/structures and nucleus/nucleoid Differences between plant and animal cells in terms of organelle types and their functions (e.g. chloroplast, site of photosynthesis) Major functions of important organelles (including cytoskeleton, flagella/cilia and ribosome) and their teamwork Different cell types have different functions (e.g. liver cells, kidney cells, muscle cells, etc.) Part B. (b) We know that the total volume of a human being is 40 litres (40 10 7 l). We know that the average volume of a cell is 1 10-6 l. Based on these information, give an estimate of the total number of cells in a human body. (5 marks)...
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BCH1048 Tutorial 7 - organelles/macromolecules/structures...

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