Term
Disaccharides (double sugars) |
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Definition
1. SUCROSE: glucose+fructose
2.LACTOSE:glucose+galactose
3. MALTOSE: glucose+glucose
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Term
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Definition
- simple sugars that have 5 CARBONS
- components of nucleic acids
- Ribose found in ribonucleic acid, RNA
- Deoxyribose found in deoxyribonucleic acid, DNA
- Not used so much for sugar
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Term
Monosaccharides (simple sugars) |
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Definition
- GLUCOSE: "blood sugar" (for energy), found in fruits, veggies,honey
- FRUCTOSE:"fruit sugar", in fruits, honey, corn syrup
- GALACTOSE: glucose and lactose, part of lactose in milk
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Term
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Definition
long chains of glucose units
found in grains, veggies,legumes
storage form of glucose in plants |
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Term
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Definition
highly branched chains of glucose units
body's storage form of carbs |
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Term
Cellulose(complex carb fiber) |
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Definition
made entirely out of glucose subunits
main component of plant cell walls
poorly fermented by colonic bacteria
in bran,legumes,nuts,peas,root veggeis,cabbage,outercovering of seeds and apples |
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Term
Hemicelliloses (complex carb fiber) |
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Definition
dietary fiber
heterogenous goup of polysaccharide subst,
in bran, whole grains, nuts, legumes, some veggies and fruits |
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Term
Who can digest cellulose? |
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Definition
Some bacteria and protists have enzyme to degrade it
Indigestible by humans, even though entirely made of glucose
Neither cattle not termites have enzyme to digest it
major component of cell walls in plants
It's considered fiber, important to GI tract |
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Term
Liver's role in galactose and fructose |
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Definition
these monosaccharides are converted by the liver to glucose
can be usd for energy or stored as glycogen or passed onto other cells
remainder of glucose passes from liver into blood and is distrib to other tissues
enters muscle & adipose tissue by facilitaed transport, insulin dependent, liver entry is insulin INdependent |
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Term
What is insulin depenendent and insulin independent? |
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Definition
DEPENDENT:muscle and adipose tissue
INDEPENDENT:liver |
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Term
What tissues use ketones for energy? |
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Definition
brain use ketones if carbs not available, but can lower blood pH
Ketones are produced if no carbs available. Liver can't catabolize fat so they produce ketone bodies as a source of energy for tissues |
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Term
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Definition
occur if starving, if carb intake is extremely low, diabetes is uncontrolled, chronic alcoholism |
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Term
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Definition
causes muscle and adipose to uptake glucose, loweing blood sugar
increased blood sugar leads to this
anabolic hormone. Blocks breakdown. promotes storage
involved in glycogen,lipid, protein synthesis
inhibits activity of enzymes |
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Term
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Definition
released by adrenal glands in response to stress or danger
mobilizes glucose for energy use by cells
stimulates glycogen breakdown and glucogenesis |
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Term
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Definition
decreased blood sugar increases glucagon production
raises blood sugar by stimulating the liver to breakdown glycogen release to blood stream
stimulates glycogen breakdown and gluconeogenesis(synthesis of glucose from protein)
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Term
Insulin's inhibitory effects? |
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Definition
inhibits expression/activity of enzymes that catabolize glycogen,lipids and proteins |
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Term
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Definition
effect of a food on blood glucose levels
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High score: food will increase blood glucose rapidly
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rich in simple carbs/starch, low in fat/fiber are absorbed fast
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Low score: food will cause slower rise in blood glucose
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rich in fiber,resistant starch or fat..less dramatic rise in blood sugar and less insuling release
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Term
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Definition
autoimmune diease
Beta cells of pancreas are targets of immune response and can no longer produce insulin |
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Term
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Definition
80%-90% cases of diabetes
insulin resistance in adipose and muscle cells
in adipose, glucose transporters not made
in muscle cellsmtransporters are made but fail to translocate to cell membrane to let glucose in
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