Biochemistry Flashcards

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1
Q

organic

A

a compound that contains CARBON

(typically has oxygen, too.)

it’s not neccessarily natural!

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2
Q

What is special about carbon?

A
  • can have up to 4 covalent bonds;
  • will bond with several different elements at the same time;
  • can form straight chains, rings, and branched chains
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3
Q

What is a polymer?

A

molecules made from repeating units of identical or nearly identical molecules linked by covalent bonds

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4
Q

What is a monomer?

A

a small organic compound,

combine to make polymers

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5
Q

What is a macromolecule?

A

a large molecule

(huge polymer)

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6
Q

How do you make a polymer?

A

Just remove the water.

monomer + monomer → polymer + water

(dehydration synthesis)

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7
Q

How do you break a polymer?

A

Just add water.

polymer + water → monomer + monomer

(hydrolysis)

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8
Q

What are the 4 main organic compounds?

A
  • carbohydrates
  • lipids
  • proteins
  • nucleic cdids
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9
Q

dehydration synthesis

A

when water is removed from two monomers and a polymer is made

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10
Q

hydrolysis

A

when water is added to a polymer and it is broken into two monomers

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11
Q

the equation for dehydration syntheisis

A

monomer + monomer = polymer + water

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12
Q

the equation for hydrolysis

A

polymer + water = monomer + monomer

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13
Q

Name 3 things that are different in

saturated and unsaturated fats:

A

Saturated (typically animal fats)

  • straight chain
  • single covalent bonds.
  • solid at room temp

UnSaturated (typically vegetable oils)

  • kinked chain
  • at least 1 double covalent bond
  • liquid at room temp.
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14
Q

Where are phospholipids important?

A

Phospholipids are key in cell membrane.

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15
Q

Proteins: What are amino acids

A

the monomer (building block) of proteins

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16
Q

Proteins: How many types of amino acids are there?

A

20

(only 12 made by the body - the others are in foods)

17
Q

Proteins: What is key when amino acids come together to make protein?

A

Order of amino acids is key!

18
Q

catalyst

A

speeds up a chemical reaction by lowering the activation energy needed to start the reaction

19
Q

Proteins: Enzymes

A

biological catalysts

(essential to life)

20
Q

Proteins:

How do enzymes work?

A
  • reactant (substrate) binds to the enzyme at the active site,
  • active site changes shape and forms the

enzyme-substrate complex

  • chemical reaction takes place
  • products are released by the enzyme….enzyme goes to another set of substrates
21
Q

Name the 3 parts of a nucleotide:

A

phosphate

5-carbon sugar

nitrogenous base

(hint - practice drawing and labeling for the test)