Describe phospholipids
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- amphipathic (half hydrophilic half hydrophobic)
- phospholipid bilayer (hydrophilic head, hydrophobic tails)
What are the 4 types of polysaccharides?
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1) cellulose - plant cell wall, most abundant
2) glycogen - in humans; stored in liver
3) starch - potatoes
4) chitin - cell wall of fungi, exoskeleton
,Why does ice float?
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Ice is less dense than water because there are fewer water molecules per
volume in ice than in liquid water.
What are the 3 amino acids that have OH- as their side group and important in
phosphorylation to turn protein on>
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Serine (Ser), Threonine (Thr), Tyrosine (Tyr)
What is an ionic bond?
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complete transfer of electrons between a metal and nonmetal
What is a peptide bond?
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a covalent bond that links two amino acids together to make protein.
, What is the tertiary structure of a protein?
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overall 3D conformation of protein
- has all bonds involved: hydrogen bonds, covalent bonds, ionic bonds,
hydrophobic interactions
What are the 3 characteristics of SATURATED triglycerides?
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1) has all the hydrogens it can hold
2) all single bonds
3) linear structure (solid at room temp.)
What is a buffer?
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weak acids or weak bases designed to maintain a constant pH
What are the 2 reasons why viruses are not living?
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1) because they are too small; smaller than cells
2) they cannot reproduce on their own; need host cell to infect then
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- amphipathic (half hydrophilic half hydrophobic)
- phospholipid bilayer (hydrophilic head, hydrophobic tails)
What are the 4 types of polysaccharides?
Give this one a try later!
1) cellulose - plant cell wall, most abundant
2) glycogen - in humans; stored in liver
3) starch - potatoes
4) chitin - cell wall of fungi, exoskeleton
,Why does ice float?
Give this one a try later!
Ice is less dense than water because there are fewer water molecules per
volume in ice than in liquid water.
What are the 3 amino acids that have OH- as their side group and important in
phosphorylation to turn protein on>
Give this one a try later!
Serine (Ser), Threonine (Thr), Tyrosine (Tyr)
What is an ionic bond?
Give this one a try later!
complete transfer of electrons between a metal and nonmetal
What is a peptide bond?
Give this one a try later!
a covalent bond that links two amino acids together to make protein.
, What is the tertiary structure of a protein?
Give this one a try later!
overall 3D conformation of protein
- has all bonds involved: hydrogen bonds, covalent bonds, ionic bonds,
hydrophobic interactions
What are the 3 characteristics of SATURATED triglycerides?
Give this one a try later!
1) has all the hydrogens it can hold
2) all single bonds
3) linear structure (solid at room temp.)
What is a buffer?
Give this one a try later!
weak acids or weak bases designed to maintain a constant pH
What are the 2 reasons why viruses are not living?
Give this one a try later!
1) because they are too small; smaller than cells
2) they cannot reproduce on their own; need host cell to infect then
