C14 Carboydrates Flashcards

(56 cards)

0
Q

lipids

A

fats

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1
Q

3 types of molecules that provide chemical energy to our cells?

A

lipids, amino acids, & carbohydrates

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2
Q

amino acids

A

proteins

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3
Q

carbohydrates

A

sugars & starches

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4
Q

All carbs have the?

A

C=O and -OH groups

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5
Q

2 types of carbohydrates?

A

aldose & ketose

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6
Q

aldose

A

aldehyde group

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7
Q

ketose

A

ketone group

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8
Q

monosaccharides

A

single carbohydrate molecules

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9
Q

disaccharides

A

2 sugar linked together

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10
Q

oligosaccharides

A

2-10 linked sugars

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11
Q

polysacchardies

A

long sugar chains

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12
Q

common monosaccharides

A

glucose, fructose, & galactose

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13
Q

common disaccharides

A

sucrose & lactose

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14
Q

sucrose is?

A

glucose and fructose =table sugar

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15
Q

lactose is?

A

glucose & galactose

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16
Q

glucose is the main source of energy for?

A

cellular metabolism

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17
Q

What type of tissues don’t store glucose?

A

nerve tissues

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18
Q

What breaks down starches into simpler carbohydrates?

A

amylase

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19
Q

the biochemical pathways that generate ATP?

A

Embden-Meyerhof pathway & Hexose monophosphate shunt

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20
Q

steroisomers

A

molecules with the same chemical formula but a different spatial orientation

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21
Q

reducing sugars:

A

glucose, maltose, lactose, fructose & galactose

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22
Q

glycolysis

A

breakdown of glucose for energy production

23
Q

glycogenesis

A

excess glucose is converted & stored as glycogen, high concentrations in liver & skeletal muscles, it is a quickly accessible form of glucose

24
glycogenolysis
breakdown of glycogen into glucose, occurs when plasma glucose is decreased
25
gluconeogenesis
conversion of amino acids into glucose, takes place mainly in the liver
26
lipogenesis
conversion of carbs into fatty acids
27
organs involved in glucose regulation?
pancreas, liver, and endocrine glands
28
pancreas
synthesizes hormones insulin and glucagon
29
liver
glucose > glycogen > glucose
30
endocrine glands
hormones
31
decreased plasma glucose?
glycogenolysis in the liver releases glucose into the plasma
32
plasma glucose is increased?
glycogenesis stores glucose as glycogen
33
insulin
synthesized in the pancreas beta- cells of the Islets of Langerhans, released when plasma glucose is increased
34
Insulin is the only hormone that?
decreases plasma glucose
35
glucagon
2nd most important glucose regulatory hormone, synthesized by pancreas alpha cells
36
glucagon increases?
plasma glucose concentration
37
effects of glucagon
increases glycogenolysis & gluconeogenesis and lipolysis
38
epinephrine
synthesized by adrenal medulla, "fight or flight", increases glycogenolysis and gluconeogenesis
39
cortisol
adrenal medulla
40
growth hormone
anterior pituitary
41
thyroxine
thyroid gland
42
DM 1
insulin deficiency, juvenile onset, autoimmune destruction of beta cells
43
DM 2
Adult onset, NIDDM, no ketoacidosis, insulin resistant
44
diabetes
metabolic disease characterized by increased plasma glucose concentration (hyperglycemia) resulting from inadequate insulin or inadequate response to insulin
45
gestational diabetes
glucose intolerance during pregnancy
46
Criteria for Diagnosing Diabetes
8 hr fasting plasma glucose levels >\= 126 mg/DL, 2 hr post prandial (75 grams) w/ glucose levels >\= 200 mg/DL, random glucose >\=200 w/ symptoms, A1C >6.5%
47
What is the common cause of hypoglycemia?
Insulin overdose
48
Von Gierke Disease?
Glycogen storage disease
49
Decreased CSF glucose values suggest
Bacteria meningitis bc they are consuming glucose as an energy source
50
Normal or increased CSF glucose suggests?
Viral meningitis
51
Glucose Oxidase methodology
Measures the consumption of oxygen
52
Glucosylated hemoglobin
Plasma hemoglobin interacts with hemoglobin to form stable hemoglobin glucose compounds, proportional to average plasma glucose concentration over an 8-12 wk time
53
What is the most commonly measured glycosylated hemoglobin?
Hemoglobin A1c
54
Ketones
By products of lipolysis
55
Microalbuminuria
Associated with early renal damage