To think about what about the third class of

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Biochemistry
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Chapter 22 / Exercise 21
Biochemistry
Garrett/Grisham
Expert Verified
To think about: What about the third class of organisms (Archea), what are their characteristics and how did they evolve?There are key differences between prokaryotes and eukaryotesPresence of a nucleusPresence of mitochondria and/or chloroplastsPresence of many other membrane-bound organellesProkaryotes and eukaryotes evolved from a common ancestorOrganelles in eukaryotic cells have many important functionsWe will see this in more detail later
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Biochemistry
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Chapter 22 / Exercise 21
Biochemistry
Garrett/Grisham
Expert Verified
What are the major types of molecules inside cells that allow cells to survive and do various things? 51
Section 1: Introduction to Cell BiologySection 1: Introduction to Cell Biology1.Key concepts about cells Chemical information DNA replicationTranscription and types of RNAsTranslationCellular Energy2.Prokaryotes vs. eukaryotes: what are they and their differences3.Evolution of eukaryotic cells4.Chemical composition of cellsSmall moleculesMacromolecules (types, diversity)Macromolecule TypesShape determines function5. Protein folding and structureAmino acids and polypeptides Ligand-protein interactionskinases, phosphatase and GTPases52Reference reading (6e) : Chapter 1: pgs: 1-15; 24-28; Chapter 2: pgs: 43-50; 51-55; 57; 60-66; Panel 2-1, 2-2, 2-3, 2-7; Chapter 3: pg. 109-119; 134-136; 143-158;
The Molecules of the Cell(to be covered in more detail in BCH261/CKCH225 Biochemistry)53bacteria?
Figure 2-29 Molecular Biology of the Cell(© Garland Science 2008)Composition of a bacterial cell54
Table 2-2 Molecular Biology of the Cell(© Garland Science 2008)The great chemical diversity of cellsWhat are macromolecules?55
Figure 2-30 Molecular Biology of the Cell(© Garland Science 2008)MacromoleculesMacromolecules are greatly responsible for the complex shape, function, regulation of cells – why? Number56
Figure 2-16 Molecular Biology of the Cell(© Garland Science 2008)The shape, size and physical and chemical properties of macromolecules allow them to have specific functions57
Sugars and PolysaccharidesFigure 2-19 Molecular Biology of the Cell(© Garland Science 2008)Repeat to make polysaccharides:Energy storageStructural functions (cell walls)Cell signaling (cell-cell binding)Blood groups58
Nucleotides and Nucleic AcidsFigure 2-26 Molecular Biology of the Cell(© Garland Science 2008)Figure 2-28 Molecular Biology of the Cell(© Garland Science 2008)DNA is the genetic codeRNA intermediates of information:oTranscription and translationoGene regulationoenzyme RNAs: ribozymesPolymerize byCondensation reactionMonomer = nucleotide59deoxyribose5 types of bases
Figure 2-23 Molecular Biology of the Cell(© Garland Science 2008)Figure 2-24 Molecular Biology of the Cell(© Garland Science 2008)Amino acids and proteinsMonomers = twenty different amino acidsPolymerize byCondensation reactionProteins are involved in almost everything:ostructureoenergyoinformation transferocatalysis60
Macromolecules are responsible for the complexity of lifeWHY?

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