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30 Cards in this Set
- Front
- Back
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Why are cells limited to being small in size?
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Because if it gets too big then diffusion cant get good things in and bad things out
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What is the difference between chromosome and chromatin forms of DNA?
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Chromosomes- Very tightly wound DNA
Chromatin- Lightly wound DNA |
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G1
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromatin
Unreplicated |
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S Phase
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromatin
Replicated |
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G2
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromatin
Replicated |
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Prophase
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromosome
Replicated |
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Metaphase
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromosome
Replicated |
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Anaphase
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromosome
Replicated |
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Telephase
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromatin
Unreplicated |
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Cytokinesis
(chromosome/chromatin) (Replicated/Unreplicated) |
Chromatin
Unreplicated |
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What is the difference between Haploid and Diploid?
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Haploid-1 copy
ex. insects 8 Diploid- 2 copies ex. humans 88 |
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What is the purpose of mitosis?
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To divide 2 sets of DNA to opposite ends of the cell
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List the 3 stages of Mitosis
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Prophase
Metaphase Anaphase Telephase |
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Describe Prophase
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Chromosomes are formed from chromatin
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Describe Metaphase
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Chromosomes line up in the middle of cell, waiting to be pulled apart
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Describe Anaphase
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Chromatin are pulled apart
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Describe Telephase
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Chromatin are separated to opposite ends
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Describe Cytokinesis
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Cell pinched in 2, and 2 new cells are formed
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What is "cancerous"?
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Causes a cell to grow too much
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What is "benign"?
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Cells grow rapidly but dont go anywhere
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What is "malignant"?
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Cells grow rapidly and move to other areas
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What is "metastisis"?
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Malignant cells break free
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What are "carcingens"?
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Cancer causing substance
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What kinds of things do scientists think need to happen to turn a regular cell into the worst type of cancer cell?
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7-8 mutations to turn it from good to bad.
The cell has to stop following basic rules |
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Define apoptosis
3 main scenarios in body |
"Cell suicide" (programmed cell death)
-Virus infection -Cell becomes cancerous -Embriologic cells |
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Why does cancer become common as people get older?
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Because they've been around cancer causing substances and things for a longer time
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Whats the difference between:
Benign Cancer Cells Malignant Cancer Cells |
Benign- grow rapidly and dont move anywhere
Malignant- grow rapidly and spread |
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Define and indicate if its embryonic or adult
--Pluripotent --Multipotent |
Pluripotent- Unlimited potental-can become any cell type(embryonic)
Multipotent- limited potential- can become limited cell types(adult) |
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Why is the use of embryonic stem cells more controversial than using adult stem cells?
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Embrionic stem cells come from donated embrios
(many think its like murder) |
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Why do scientist want to work with embryonic stem cells more than adult stem cells?
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Because they have unlimited potential and can becomy any cell type (they're PLURIPOTENT)
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