Chemistry Flashcards

(78 cards)

1
Q

What type of bonds are in maltose?

A

alpha 1-4

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2
Q

What type of bonds are in lactose?

A

beta 1-4

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3
Q

What type of bonds are in sucrose?

A

alpha-beta 1-2

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4
Q

What type of bonds are in cellulose?

A

beta 1-4

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5
Q

What type of bonds are in amylose?

A

alpha 1-4

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6
Q

What type of bonds are in amylopectin?

A

alpha 1-4, alpha 1-6

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7
Q

What type of bonds are in glycogen?

A

alpha 1-4 & alpha 1-6

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8
Q

Which has longer branches, amylopectin or glycogen?

A

Amylopectin

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9
Q

Which is more branched, amylopectin or glycogen?

A

Glycogen

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10
Q

Type of bond b/w glycerol & fatty acids?

A

Ester bond

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11
Q

Types of essential fatty acids?

A

Arachidonic 20:4
Linolenic (Omega-3) 18:3
Linoleic (Omega-6) 18:2
EPA 20:5

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12
Q

What molecules are precursors for cholesterol synthesis?

A

Mevalonate
Acetyl CoA
Squalene
HMG CoA

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13
Q

Where are chylomicrons synthesized?

A

Intestinal mucosa

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14
Q

Which lipoproteins have the highest % of triglycerides?

A

Chylomicrons

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15
Q

Which lipoproteins have the lowest % of protein?

A

VLDLs

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16
Q

Which lipoproteins have the highest % of cholesterol?

A

LDL

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17
Q

Where does beta oxidation of fatty acids occur?

A

Mitochondria

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18
Q

What transports fatty acids into mitochondria for beta oxidation?

A

carnitine

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19
Q

What are examples of ketone bodies?

A

Acetoacetate
Acetone
Hydroxybutyrate

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20
Q

What is the primary substrate for lipogenesis?

A

Acetyl CoA

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21
Q

Where does lipogenesis occur?

A

Cytoplasm

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22
Q

What is the “most important” intermediate of lipogenesis?

A

Malonyl CoA

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23
Q

Which AA’s have an aromatic ring?

A

Phenylalanine
Tryptophan
Tyrosine

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24
Q

Which AA’s are basic?

A

Histidine
Arginine
Lysine
“HAL”

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25
Which AA's are neutral?
``` Serine Threonine Asparagine Glutamine "STAG" ```
26
Which AA's contain sulfur?
Methionine | Cysteine
27
Which AA's are not glucogenic?
Leucine | Lysine
28
Which AA's are branched?
Leucine Isoleucine Valine
29
Which AA's are acidic?
Glutamate | Aspartate
30
Which AA is a precursor to serotonin?
Tryptophan
31
Which AA is a precursor to GABA?
Glutamate
32
Which AA is a precursor to Histamine?
Histidine
33
Which AA is a precursor to Creatine?
Glycine/arginine
34
Which AA is a precursor to NAD?
Tryptophan
35
Which AA's are lacking in grains?
Lysine Threonin Tryptophan
36
Which AA carries ammonia to the urea cycle?
Glutamate
37
Which 3 AA's donate nitrogen for purines & pyrimidines?
Glutamine Aspartate Asparagine
38
Which 6 AA's is muscle able to oxidize?
``` Glutamate Aspartate Leucine Valine Isoleucine Asparagine GAL VIA ```
39
Which AA takes ammonia & lactate from muscles during exercise to the liver?
Alanine
40
What bond combines AA's to make proteins?
Peptide
41
What vitamin makes TPP?
Thiamine (B1)
42
What vitamin makes FAD, FADH?
Riboflavin (B2)
43
What vitamin makes NAD, NADH?
Niacin (B3)
44
What vitamin makes CoA?
Pantothenic Acid (B5)
45
What vitamin makes pyridoxal phosphate?
Pyridoxine (B6)
46
Which B vitamin is Folic Acid?
B9
47
Which B vitamin is cyanocobalamin?
B12
48
What macromineral is a component of bones, co-factor for kinase, needed for glucose breakdown?
Magnesium
49
What micromineral is a constituent of vit B12?
Cobalt
50
Which micromineral is a part of Cytochrome A oxidase (ETC)?
Copper
51
Which micromineral is a cofactor for decarboxylase?
Manganese
52
Which micromineral is a cofactor for glutathione peroxidase?
Selenium
53
Which micromineral is a cofactor for carbonic anhydrase?
Zinc
54
Where does DNA replication occur?
Nucleus
55
Where does transcription occur?
Nucleolus
56
Where does the Kreb's cycle occur?
Mitochondria
57
What are the products for only ONE turn of the Kreb's cycle?
2 CO2 3 NADH 1 FADH2 1 GTP/ATP
58
What is the electron acceptor in the ETC?
Oxygen (forms water)
59
What is the total ATP production from oxidative phosphorylation?
36 (or 38) Kreb's = 30 ATP Glycerol-3-phosphate shunt = 4 ATP Glycolysis = 2 ATP
60
Where does glycolysis occur?
Cytosol
61
Where does gluconeogenesis occur?
Cytoplasm & mitochondria of liver
62
Where does glycogenesis occur?
Cytoplasm of liver & muscle
63
Where does glycogenolysis occur?
Cytoplasm of liver & muscle
64
Where does lipogenesis, lipolysis, & cholesterol synthesis occur?
Liver
65
Where does the pentose phosphate pathway occur?
Cytosol
66
This is when the charge of an AA or protein is zero
Isoelectric point
67
Legumes are missing what AA?
Methionine
68
Sugars that differ in configuration at a single asymmetric center
Epimers
69
Molecules that are mirror images
Enantiomers
70
Atoms bonded in the same order but differ in precise orientation
Stereoisomers
71
An enzyme + cofactor is called what?
Holoenzyme
72
An enzyme w/o a cofactor is called what?
Apoenzyme
73
These regulate the rate of enzyme synthesis
Steroids
74
This is a protein that becomes an active enzyme when parts are removed
Zymogen
75
An area on the enzyme where a compound may bind & change the rate of activity
Allosteric site
76
What AA is the precursor to epinephrine?
Tyrosine
77
What is a peptide hormone that is secreted by the beta cells of the pancreas (tail)?
Insulin
78
What is a peptide hormone that is secreted by the alpha cells of the pancreas, but has the opposite effect of insulin?
Glucagon