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Mitosis Exam Questions with accurate detailed answers || || || || || ||
Describe and explain what the student should have done when counting cells to make sure that the
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mitotic index he obtained for this root tip was accurate - ✔✔- Examine a large number of field
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- Look at many cells
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- To ensure a representative sample
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Cell placed in a less negative water potential than cytoplasm
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Chromosomes moved further apart || || || ||
Suggest how this procedure moved the chromosomes apart - ✔✔- water moved into cell by
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osmosis ||
- so cell/cytoplasm gets bigger
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Suggest 1 way the structure of the chromosome could differ along its length to result in the stain
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binding more in some areas - ✔✔- Difference with interactions of histones
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- Differences in base sequence
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What is a homologous pair of chromosome? - ✔✔Two chromosomes that carry the same gene
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Describe how bacteria divide (2 marks) - ✔✔- Binary Fission || || || || || || || || || ||
- Replication of circular DNA
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- Division of cytoplasm produces 2 daughter cells
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- Each with singe copy of circular DNA
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Protease is an enzyme that breaks down proteins || || || || || || || ||
Some bacteria secretes excretes extracellular protease in its natural environment - ✔✔- Digest
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protein ||
Mitosis Exam Questions with accurate detailed answers || || || || || ||
Describe and explain what the student should have done when counting cells to make sure that the
|| || || || || || || || || || || || || || || ||
mitotic index he obtained for this root tip was accurate - ✔✔- Examine a large number of field
|| || || || || || || || || || || || || || || || || ||
- Look at many cells
|| || || || ||
- To ensure a representative sample
|| || || || ||
Cell placed in a less negative water potential than cytoplasm
|| || || || || || || || || ||
Chromosomes moved further apart || || || ||
Suggest how this procedure moved the chromosomes apart - ✔✔- water moved into cell by
|| || || || || || || || || || || || || || ||
osmosis ||
- so cell/cytoplasm gets bigger
|| || || ||
Suggest 1 way the structure of the chromosome could differ along its length to result in the stain
|| || || || || || || || || || || || || || || || || ||
binding more in some areas - ✔✔- Difference with interactions of histones
|| || || || || || || || || || || ||
- Differences in base sequence
|| || || ||
What is a homologous pair of chromosome? - ✔✔Two chromosomes that carry the same gene
|| || || || || || || || || || || || || ||
Describe how bacteria divide (2 marks) - ✔✔- Binary Fission || || || || || || || || || ||
- Replication of circular DNA
|| || || || ||
- Division of cytoplasm produces 2 daughter cells
|| || || || || || || ||
- Each with singe copy of circular DNA
|| || || || || || ||
Protease is an enzyme that breaks down proteins || || || || || || || ||
Some bacteria secretes excretes extracellular protease in its natural environment - ✔✔- Digest
|| || || || || || || || || || || || ||
protein ||
