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Glucose Metabolism Review
N/A
44
Anatomy
12th Grade
05/09/2009

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Cards

Term
Why might a cell switch to anaerobic respiration as its major source of usable energy?
Definition
Has an insufficient amount of oxygen
Term
What is meant by the term oxygen debt?
Definition
Anaerobic usage of ATP molecules produced through oxidation
Term
Glycogenesis
Definition

Glucose molecules from a strand of glucose beads;

 

 

Decrease in blood glucose levels

Term
Glycogenolysis
Definition
Hydrolyzed; can be broken down by water
Term
Glycogen
Definition
Monnosachride that provides sugar energy
Term
The 6 hormones that affect glucose metabolism:
Definition

1. Insulin

2. Glucogen

3. Epinephrine

4. Adrenocorticotripic Hormone (ACTH)

5. Growth Hormone

6. Thyroid Stimulating Hormone

Term
Insulin
Definition

Secreted by Beta Cells

 

 

Decreases blood glucose levels by moving glucose out of blood and into cells

Term
Glucogen
Definition

Secreted by Beta Cells

 

 

Increases blood glucouse levels

Increases enzyme activities

Term
Epinephrine
Definition

Secreted by Adrenal Medulla

 

 

Increases phosphorylase activity

Increases liver and muscle glycogenolysis

Term

Adrenocorticotropic Hormone

(ACTH)

Definition

Secreted by the Glucorticoids

 

 

Increases blood glucose concentration

Term
Growth Hormone
Definition

Secreted by the Anterior Pituitary Gland

 

Increases blood glucose levels by shifting carbs into fat

Term
Thyroid Stimulting Hormone
Definition

Secreted by Aneterior Pituitary Gland

 

Increases thyroxine

Term

Hyperglycemic/ Hyperglycemia

Definition
Term
Hypoglycemic/Hypoglycemia
Definition
Low blood sugar
Term
If the pyruvic acid doens't have enough oxygen to enter the citric acid cycle what happens?
Definition
The pyruvic acid is converted into lactic acid instead of CoA
Term
What is the normal range of blood glucose level?
Definition
80-100 mg/100 ml of blood
Term
Glycolysis
Definition

Occurs in cytoplasm

Anaerobic

 

Starts with Glucose

Produces 2 pyruvic acid

Term
Net ATP
Definition
What ATP hasn't been used
Term
Citric Acid Cycle
Definition

Occurs in the Mitochondria

Aerobic

 

Starts with 2 pyruvic acid

Produces 4 carbon dioxide and 6 H2O

 

Can create citric acid

Term
Electon Transport Chain/ Oxidative phosphorylation
Definition

Occurs in the inner mitochondrial Membrane

 

Final electron acceptor is oxygen

 

Primary product is 34 ATP

Term
Catabolism
Definition
Breakdown of molecules
Term
Anabolism
Definition
Building molecules
Term
Dietary Fiber
Definition
Cellulose; helps prevent constipation and reduces change of colorectal cancer
Term
ATP
Definition

Transfers energy from chemical bonds into energy absorbing reactions

 

Consists of adenine, nucleotide, and two phosphate groups

Term
3 Diaccharides
Definition

1. Lactose

2. Sucrose

3. Maltose

Term
Lactose
Definition
Glucose + Galactose
Term
Sucrose
Definition
Glucose + Fructose
Term
Maltose
Definition
Glucose + Glucose
Term
Phosphate Groups in Glycolysis
Definition
Break high energy, create ADP from ATP
Term
What converts monosaccharides glactose and fructose into glucose?
Definition
The liver
Term
Most carbs are _______ by the body into glucose; A small portion is _______.
Definition
Catabolized/ Anabolized
Term
What is used when glucose is insufficient?
Definition
Fats and proteins
Term
Glucose must _____ to react with ATP and form ADP
Definition
Cross the cell membrane
Term
For every 1 glucose molecule = ___ ATP are formed in Glycolysis
Definition
two net ATP
Term
In Citric Acid Cyles, the 2 pyruvic acid must be converted into ______ releasing carbon dioxide molecules...
Definition
Acetyl CoA
Term
Oxidative Phosphorylation refers to:
Definition
Joining of a Phosphate group to ADP and ATP
Term
What is important in Glycogenesis?
Definition
Insulin
Term
Homeostatic mechanism occurs when:
Definition
blood glucose levels increase above the midpoint of the normal range
Term
After Glycogenesis:
Definition
Blood glucose levels decrease to gain normal satus
Term
What does Glycogenolysis do?
Definition
Increases blood glucose levels
Term
Gluconeogenesis
Definition

Forms new glucose;

 

Made from protein or glycerol

 

 

Occurs mostly in liver

 

Increases blood glucose levels

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