Carbohydrates and Glucose Flashcards
An aldehyde or ketones derivatives of polyhydroxy-alcohol
Carbohydrates
Carboydrates are composed of
Carbon, Hydrogen, and Oxygen (CHO)
MAJOR food source & energy supply of the body (but not the only source of energy)
Carbohydrates
Examples of Monosaccharide
Glucose, Galactose, Fructose
2 monosaccharides are called
Disaccharides
Disaccharides are joined together by
Glycosidic bond/linkage
Glycosidic bond that is oriented Down
Alpha
Glycosidic bond that is oriented Up
Beta
Glucose + Fructose
Sucrose
Sucrose has what type of glycosidic bond
Alpha glycosidic bond
Example of sucrose
Table sugar
Glucose + Galactose
Lactose
Lactose has what type of glycosidic bond
Beta
Glucose + Glucose
Maltose
Maltose has what type of glycosidic bond
Alpha
Carbohydrates containing ≥ 3 monosaccharides units
Polysaccharides
- A repeating glucose unit
- Found in cells of nearly all PLANTS
- Cannot be digested by human
Cellulose
Cellulose is what kind of polysaccharide?
Straight chain, unbranched
- A repeating glucose unit
- Major form of polysaccharides found in ANIMALS/ HUMAN
- Majority are stored in the Liver and some in muscles
Glycogen
Glycogen is what type of polysaccharide?
Branched
- Main polysaccharide
- found in SEEDS/ ROOTS OF PLANTS
Starch
Types of starch and their percentage
Amylose (20%)
Amylopectin (80%)
Amylose is
unbranched
Amylopectin is
Branched
Functional group is at the END of carbon chain
Aldehyde (Aldose)
Functional group is in between the 2 carbon groups
Ketones (Ketose)
Medically important carbohydrate as the entire function of the brain is glucose dependent
Glucose
How many glucose is utilized by the brain during resting/ sleeping period?
1/2 to 2/3
Primary energy source of human
Glucose
T/F: Glucose is the only carbohydrate DIRECTLY used as energy
TRUE
Glucose is stored as glycogen in
Liver and Muscles
By the help of __, glucose can enter the cell
Insulin
Metabolism of glucose to form energy
Glycolysis
Effects on glucose level: Glycolysis
Decreased BG
Formation of glucose from
non-carbohydrate source (protein, amino acids/ lipids)
Gluconeogenesis
Effects on glucose level: Gluconeogenesis
Increased BG
Breakdown of glycogen (forming more glucose)
Glycogenolysis
Effects on glucose level: Glycogenolysis
Increased BG
Formation of glycogen (to store excess glucose by converting multiple glucose to glycogen)
Glycogenesis
Effects on glucose level: Glycogenesis
Decreased BG
Conversion of carbohydrate to fatty
acids
Lipogenesis
Effects on glucose level: Lipogenesis
Decreased BG
Decomposition or breakdown of fats
(occurs if glucose is insufficient/ absent)
Lipolysis
Effects on glucose level: Lipolysis
Increased BG
(occurs if glucose is insufficient/ absent)
Fats will be utilized instead of glucose to
form energy forming __ as a byproduct
Ketones
Increase ketones = Ketosis will lead to
coma