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11 Cards in this Set
- Front
- Back
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Diff bwt prokaryotic + eukaryotic cell?
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Prokaryotic – nucleiod region instead of nucleus
Eukaryotic – has a nucleus |
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Generally prokaryotic cells are smaller than eukaryotic cells. Why?
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Few organelles
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Criteria for self‐replication (List):
1. Require a container (compartment) 2. Have a set of instructions 3. Mechanism to read the instructions 4. Gather/make raw material 5. Gather and transform energy 6. Gather or make parts 7. Pass instructions to replicas Which of these are self-replicating? (Evaluate) 1. Human skin cells 2. A human being 3. Bacteria (“E. coli”) 4. Self-pollinating plants 5. Viruses A. All 5 B. 1, 3, 5 only C. 1, 2, 3, 4 only D. 2, 3, 4 only E. 1, 3, 4 only |
E
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Modern cell theory states that the cell is the simplest level of structure for life. This is because cells:
A. Are the structural unit of all living things. B. Can arise by way of spontaneous generation. C. Can pass on hereditary information. D. Is the smallest unit that can perform all functions of life. |
D
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Which of the following structures do most cells share?
1. cytoplasm 2. ribosomes 3. a cell wall 4. a cytoplasmic membrane 5. genetic material A. 1, 3, 5 B. 1 & 2 only C. 1, 2, 4 5 D. all except 5 E. all 5 |
C
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Units in a multicellular organism?
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µm
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Units in a unicellular organism?
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nm
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Differentiated cells in a multicellular organism:
A. Have different genomes. B. Have the same genome with all genes expressed at all times. C. Have the same gneome with different subset of genes expressed in each. |
C
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True or False? Protein, DNA, Carbohydrates and Lipids are all polymer.
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T; Protein, DNA and Carbohydrates are all homo-polymers. Lipids is a hetero-polymer and CANNOT be extended further.
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Name the macromolecules and what they are made of.
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Protein - amino acids
DNA - nucleotides Carbohydrates - monosaccharides, polysaccharides Lipids - glycerol and 3 fatty acids |
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Extensibility of macromolecules
Macromolecules, such as proteins, nucleic acids and polysaccharides are extensible because: 1. All of the monomers have two reactive groups that can combine with each other. 2. All of the residues are identical. 3. There is always a free reactive group in the polymer that can react with another activated monomer to from a long polymer. 4. There are two free reactive groups in the polymer, both of which can react with a new activated monomer. A. 1, 2, 3 B. 1, 3 C. 1, 4 D. 1, 2, 4 |
B
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