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| What are the taxonomic categories from smallest to largest? |
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Definition
| Genus, Family, Order, Phylum, Domain. |
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| Organisms that are designated as autotrophs obtain their energy from? |
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Which is true when one disaccharide is broken down into two monsacchrides?
a)It is a dehydration synthesis reaction
b)It is an exergonic reaction (releases energy)
c)It is a hydrolysis reaction
d) a and b
e) b and c |
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Term
| The sum of all chemical reactions that take place in the body are known as? |
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Term
| In biological systems, what substances are composed of a weak acid and weak base and help maintain pH within certain narrow limits? |
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Term
| Chlorine has 17 protons. How many electrons are in its third energy level in an uncharged state? |
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Definition
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Term
| The nucleus of an atom contains? |
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Definition
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Term
| What is the strongest chemical bond? |
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Definition
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Term
| What best describes a hydrogen bond? |
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Definition
| Occurs when a hydrogen and an oxygen are covalently bonded but the electrons spend more time around the oxygen atom, giving the oxygen a slight negative charge. |
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Term
When a solution has a pH of greater than 7
a. The solution is basic
b. The solution has equal H and OH ions
c. the solution is acidic
d. both a and b
e. both b and c |
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Term
| The chemical symbol for Potassium is? |
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Term
| Briefly explain what a hypothesis is. |
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Definition
| An idea that comes from what you know and you must have an experiment to prove or disprove |
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Term
| What substances are protein catalysts that increase the rate of reaction without being permanently changed? |
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