4U Biology-Chapter 1 Test: The Biochemical Basis of Life || Already Graded A+.
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4U Biology-Chapter 1 : The Biochemical Basis o
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4U Biology-Chapter 1 : The Biochemical Basis O
Amino correct answers I act as a base. I pick up H+ from a solution. I form amines. I help form, along with carboxyl, the amino acids. Amino acids are the building blocks, monomers, of proteins. So important!
Hydroxyl correct answers I am a hydrogen atom bonded to an oxygen atom. I help forms al...
4U Biology-Chapter 1 Test: The Biochemical Basis of Life ||
Already Graded A+.
Amino correct answers I act as a base. I pick up H+ from a solution. I form amines. I help form,
along with carboxyl, the amino acids. Amino acids are the building blocks, monomers, of
proteins. So important!
Hydroxyl correct answers I am a hydrogen atom bonded to an oxygen atom. I help forms
alcohols. I form ethanol.
Carbonyl correct answers I am a carbon atom that is linked by a double bond to an oxygen atom.
If I am at the end of a carbon skeleton, I form an aldehyde. If I am within a carbon chain, I form
a ketone. I am found in sugars.
Phosphate correct answers I bond to a carbon chain with one of my oxygens. I consist of a
phosphorus atom bonded to 4 oxygen atoms. I form organic phosphates and am usually ionized. I
also help with energy transfer and am found in the very important ATP molecule.
Carboxyl correct answers I act as an acid. I contribute H+ to solutions then become ionized. I
form acetic acid and give vinegar a sour taste.
Sulfhydryl correct answers I form the thiols. I take the place of oxygen in the hydroxyl group of
an alcohol.
A single covalent bond, with a small positive charge on the hydrogens and a small negative
charge on the oxygen. correct answers In a water molecule, each bond between the oxygen atom
and the two hydrogen atoms are best described as:
A hydrogen bond correct answers Each bond that forms between the oxygen atom of one water
molecule and a hydrogen atom of another water molecule is best described as:
Oxygen atom has a higher electron affinity than Hydrogen correct answers Why is a water
molecule considered to be polar?
High Specific Heat correct answers Which property of water allows ocean temperatures to
remain relatively stable?
Cohesion correct answers Which property of water allows a dome like shape to form when you
overfill a glass of water?
Adhesion correct answers Which property of water allows a meniscus to form on the sides of a
glass tube?
10 times correct answers How many times stronger is a solution of pH 1 when compared to a pH
solution of 2?
, 100 times correct answers How many times stronger is a solution of pH 7 when compared to a
pH solution of 9?
Bicarbonate Buffer System, 7 correct answers Our body uses the ____ system to maintain an
internal pH of ____
Surface Tension correct answers Which property of water allows water striders to "walk" on
water?
Alcohol/Hydroxyl Groups correct answers -O-H
Amino Groups correct answers -NH2
Ketone and Aldehyde Groups correct answers -C=O
Phosphate Groups correct answers -PO4
Sulfylhydryl Groups correct answers -SH
Carboxyl Groups correct answers -C=O
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O-H
water is formed (product) correct answers Dehydration (Condensation)
water molecule is used (reactant) correct answers Hydrolysis
salt and water form (product) correct answers Neutralization (acid-base)
electrons are reactants correct answers Reduction
electrons are produced correct answers Oxidation
Dehydration correct answers glucose + galactose --> lactose + water
Hydrophilic correct answers -"water-loving"
-dissolves in water
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