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What are the three domains?
- Domain Bacteria
- Domain Archaea
- Domain Eukarya
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What do Bacteria and Archaea have in common ?
Both contain unicellular prokaryotes - (which lacks membrane-bounded nucleus)
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What kind of environment do Archaea live in?
- Archaea live in extreme conditions
- -environments that lack oxygen
- -extreme salty, hot, or acidic environments.
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What elements make up the most weight of living things?
- CHNOPS
- Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur
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In cells, synthesis often occurs when monomers are bonded together during a ____________ reaction, which involves the removal of H20.
Dehydration reaction
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What is the molecular formula of a simple sugar?
CH2O
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What are two other isomers of glucose?
Fructose and galactose
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Glucose + Glucose ----> _____________.
Maltose
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Monosaccharide + Monosaccharide, undergo ____________ reaction to form a disaccharide.
dehydration reaction
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Plants store glucose as ____________.
Starch
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Animals store glucose as _______________.
Glycogen
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Starch is a chain of glucose molecules that is _________.
- B. both
- Starch can be found branched or non branched. However, glycogen is highly more branched than starch
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Cellulose is the most abundant of all carbohydrates
a. true
b. false
- a. True!
- Cellulose is also the most abundant organic molecule on Earth!
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The exoskeleton of crabs, lobsters, and insects are made up of ____________, which is another example of a polysaccharide.
Chitin
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________________ have double bonds.
An example of this would be corn oil.
Unsaturated fatty acids
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_____________ fatty acids have no double bonds.
An example of this would be better.
Saturated fatty acids.
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Saturated fatty acids have a ________ melting point .
a. High
b. Low
- High!
- Butter in room temperature is a solid.
- Corn oil (unsaturated) is liquid in room temperature,
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Waxes have a ________ melting point.
A. High
B. Low
- High.
- Waxes are solid in room temperature.
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