biology chapter 3: the macro-molecule Flashcards

1
Q

macromolecules

four types

A
  • carbohydrates
  • lipids
  • nucleic acids
  • proteins
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2
Q

carbohydrates

the first macromolecule

A
  • sugar and energy
  • when sugar (glucose) is converted into energy
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3
Q

monomer for a carbohydrate

A

monosaccharide

mono = one
saccharide = sugar molecule

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4
Q

four types of complex carbohydrates

they all have many many monosaccharides

A
  • starch
  • glycogen
  • cellulose
  • chitin
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5
Q

lipids (fats)

the second macromolecule

A
  • nonpolar: charges are equally balanced across molecule
  • hydrophobic: dislikes water & won’t mix w/ it
  • triglyceride
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6
Q

the two parts of lipids

A
  • glycerol head
  • fatty acid tail
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7
Q

two types of lipids (fats)

A
  • saturated fats
  • unsaturated fats
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8
Q

saturated lipids (fats)

A
  • all bonds are single bonds
  • solids at room temperature
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9
Q

unsaturated lipids (fats)

A
  • needs to have at least one double bond
  • liquid at room temperature
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10
Q

lipids (fats)

steroids/cholestrol

what are the heads and tails like?

A

hormones:
* heads (big and multiple rings)
* tails (hydrogens and carbons)
charges are equal across molecules

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11
Q

phospholipids

what are the heads and tails like?

A

head:
* glycerol w/ phosphate group (phosphate makes it have charge)
* nitrogen w/ positive charge makes head polar
tail: fatty acids

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12
Q

third macro-molecule

proteins

A

responsible for literally everything

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13
Q

monomer of protein

A

amino acid

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14
Q

how many amino acids are there?

A

20

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15
Q

two parts of amino acids

A
  • amine group (N)
  • Carboxyl group
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16
Q

what kind of bond are proteins?

A

peptide bond

17
Q

what is a peptide bond?

A

a chemical bond that is formed by joining the carboxyl group on one amino acid to the amino group of another

18
Q

first protein structure

A

primary: peptide bond

19
Q

second protein structure

A

secondary: peptide and hydrogen bond

20
Q

third protein structure

A

tertiary: peptide bond, hydrogen bond, R group bond

21
Q

fourth protein structure

A

Quantinary: 2, 3, or 4 tertiary structures bonded

22
Q

fourth macromolecule

nucleic acid

A
  • simpliest
  • monomer: nucleotide - builds RNA & DNA
  • this is where you get your genetic information
23
Q

nucleotide

three parts

A
  • phosphate group (always has a P)
  • sugar [Ribose (the R in RNA) and deoxyribose (the D in DNA)]
  • Nitrogen base group (ATGC)
24
Q

Nitrogen base groups in RNA

there are four

A
  • adenine
  • cytosine
  • guanine
  • uracil
25
Nitrogen base groups in DNA
* adenine * cytosine * guanine * thymine
26
overall process for copying genetic information
**central dogma ** DNA transcribes into RNA RNA translates into protein
27
charges | who likes each other when?
* opposites attract (+ likes -) * polars attract (when + likes +) * nonpolars (when - likes -)
28
three types of monosaccharides
* glucose * galactose * fructose
29
disaccharide
two monosaccharides bonded together
30
three types of disaccharides saccharides = sugar molecule | di = two
* lactose * sucrose * maltose
31
lactose | which two monosaccharides?
* glucose * galactose
32
sucrose | which two monosaccharides?
* glucose * fructose
33
maltose | which two monosaccharides?
* glucose * glucose
34
what is each macro-molecule made up of?
monomers
35
what are the two types of reactions?
* dehydration * hydrosis
36
dehydration
* bonds are being formed * water is being produced and lost
37
hydrolysis
* bonds are being broken * water is the reactant