Term
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Definition
| The ability of something to make a copy of itself |
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Term
| What is the RNA World Hypothesis? |
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Definition
| That life began as a polymer call a nucleic acid - specifically, a molecule of ribonucleic acid (RNA). |
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Term
| What are the two attributes that distinguish life from nonlife? |
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Definition
1. Reproduction
2.Metabolism |
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Term
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Definition
| The ability to acquire particular molecules and use them in controlled chemical reactions that maintain conditions suitable for life and that contribute to growth. |
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Term
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Definition
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Term
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Definition
A polymer of nucleotides.
Each Nucleotide is composed of a phosphate group, a sugar, and a nitrogen base.
(Monomer-One Part)
(Polymer-Many Parts)
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Term
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Definition
Has 3 components -
1. A Phosphate Group
2. A Sugar
3. A Nitrogenous Base |
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Term
Although a wide variety of nucleotides are found in living cells, "origin-of-life" researchers concentrate on two types -
what are these two types? |
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Definition
- Ribonucleotides
- Deoxyribonucleotides
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Term
Ribonucleotides and deoxyribonucleoties differ only very slightly.
How do they differ? |
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Definition
| They type of sugar they contain. |
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Term
| What type of sugar does a ribonucleotide contain? |
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Definition
A ribose - the ribose has an -OH group bonded to the second carbon in the ring.
(pg 69) |
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Term
| What type of sugar does a deoxyribonucleotide contain? |
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Definition
A deoxyribos. It instead has an H at the location the ribos has an -OH.
Deoxy means lacking oxygen, which makes sence because the deoxyribos lacks the oxygen! |
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