Carbohydrates Flashcards

(30 cards)

1
Q

Primary energy source stored primarily as

A

glycogen

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2
Q

Disease states involved

A

hyperglycemia and hypoglycemia

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3
Q

Contain ____ with ___functional groups

A

C, H, and O (Cx (H20)y C=O and –OH

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4
Q

Metabolism of glucose to lactate or pyruvate

for production of energy

A

Glycolysis

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5
Q

Formation of glucose-6-phosphate from non

carbohydrate source

A

Gluconeogenesis

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6
Q

Breakdown of glycogen to glucose for use as

energy

A

Glycogenolysis

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7
Q

Conversion of glucose to glycogen for storage

A

Glycogenesis

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8
Q

Conversion of carbohydrates to fatty acids

A

Lipogenesis

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9
Q

Decomposition of fat

A

Lipolysis

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10
Q

Metabolism of glucose to lactate or

pyruvate for production of energy

A

Glycolysis

EMP Pathway

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11
Q

Glucose –Insulin ATP +lactate/pyruvate

A

Glycolysis

EMP Pathway

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12
Q

Formation of G-6-P from non

carbohydrate source

A

Gluconeogenesis

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13
Q

Fats (ketone bodies), Protein (urea nitrogen)

A

Gluconeogenesis

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14
Q

Conversion of glucose to glycogen

A

Glycogenesis

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15
Q

Glucose –Insulin Glycogen

A

Glycogenesis

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16
Q

Breakdown of glycogen to G-6-P

Glycogen –Glucagon Glucose

A

Glycogenolysis

17
Q

Insulin (Hypoglycemic agent)

A

decreasing ↓ glucose
syn from the β cells of the islets of Langerhan
↑ glycogenesis, glycolysis, lipogenesis; and ↓ glycogenolysis.

18
Q

Glucagon (hyperglycemic agent)

A

Primary hormone responsible increasing blood glucose
Synthesized by the α cells of the islets of Langerhan (pancreas)
↑ glycogenolysis and gluconeogenesis.

19
Q

Epinephrine

A

Produced by the adrenal medulla, ↑ blood glucose
Released during times of physical and emotional stress
Inhibits insulin secretion, ↑ glycogenolysis and lipolysis

20
Q

Cortisol

A

Produced by the adrenal cortex, ↑ plasma glucose

↓ intestinal entry of glucose into the cell, ↑ gluconeogenesis, glycogenolysis and lipolysis

21
Q

Growth hormone

A

Produced by the anterior pituitary gland; ↑ plasma glucose

↓ glucose entry to cells, ↑ glycolysis

22
Q

Thyroxine

A

Produced by the thyroid gland; ↑ plasma glucose

↑ glycogenolysis, gluconeogenesis and glucose intestinal absorption

23
Q

Somastostatin

A

Produced by the Delta cells of the islet of Langerhans in the pancreas and hypothalamus
↑ plasma glucose by inhibition of insulin, glucagon, GH, etc.

24
Q

Metabolic disease characterized by hyperglycemia resulting from defects in insulin secretion, insulin action or both

A

Diabetes Mellitus

25
β-Cell destruction Absolute insulin deficiency Autoantibodies
Type 1 (IDDM)
26
5-10% of all cases of diabetes Occurs in childhood and adolescence Absence of Insulin with excess in glucagon
Type 1 (IDDM)
27
Adult onset | 90% of all cases of diabetes
Type 2 (NIDDM)
28
``` Insulin resistance w/ secretory defect Relative insulin deficiency ↑ with age, obesity and lack of exercise Insulin is present (hyperinsulinemia) Glucagon secretion is attenuated ```
Type 2 (NIDDM)
29
``` Characteristics Type 2 (NIDDM) ```
Type 2 (NIDDM) Non Insulin dependent Ketosis tendency is seldom Greater tendency to develop hyperosmolar states Polydipsia, Polyphagia, Polyuria
30
Glucose intolerance during pregnancy | Due to metabolic and hormonal changes
Gestational