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10 Cards in this Set
- Front
- Back
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What is the first step in the process of digestion?
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MOUTH
→salivary amylase →amylose and amylopectin (starch) into smaller polysaccharides |
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What is the second step in the process of digestion?
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SMALL INTESTINES
1.Pancreas→pancreatic amylase (forms dissacharides and oligosaccharides) 2.Small intestines→ disaccharidases (sucrase, lactase, maltase and isomaltase) forms monosaccharides (glucose, fructose and galactose) |
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How is glucose, galactose and fructose absorbed into our body?
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GLUCOSE & GALACTOSE
→ rapid and complete absorption →protein carrier →energy-dependent process (active transport) FRUCTOSE →slow →facilitated transport/diffusion (needs protein carrier but no energy) **all monosacchrides cross over into hepatic portal blood via facilitated transport! |
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What is glycolysis?
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→major pathway for the utilization of glucose and is found in the cystol of all cells
→converts glucose (6C) to 2 pyruvate molecules (3C) in the formation of energy →anaerobic process- formation of energy without oxygen (cytosol) →Mg+2 required as cofactor in most steps |
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What is step 1 in priming?
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glucose→glucose-6-phospahte (G 6-P)
-uses 1 ATP -hexokinase- all cells, operates at low [glucose] -glucokinase- inducible enzyme, operates at high [glucose] in liver and pancreas |
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|
What is the first step in the process of digestion?
|
MOUTH
→salivary amylase →amylose and amylopectin (starch) into smaller polysaccharides |
|
|
What is the second step in the process of digestion?
|
SMALL INTESTINES
1.Pancreas→pancreatic amylase (forms dissacharides and oligosaccharides) 2.Small intestines→ disaccharidases (sucrase, lactase, maltase and isomaltase) forms monosaccharides (glucose, fructose and galactose) |
|
|
How is glucose, galactose and fructose absorbed into our body?
|
GLUCOSE & GALACTOSE
→ rapid and complete absorption →protein carrier →energy-dependent process (active transport) FRUCTOSE →slow →facilitated transport/diffusion (needs protein carrier but no energy) **all monosacchrides cross over into hepatic portal blood via facilitated transport! |
|
|
What is glycolysis?
|
→major pathway for the utilization of glucose and is found in the cystol of all cells
→converts glucose (6C) to 2 pyruvate molecules (3C) in the formation of energy →anaerobic process- formation of energy without oxygen (cytosol) →Mg+2 required as cofactor in most steps |
|
|
What is step 1 in priming?
|
glucose→glucose-6-phospahte (G 6-P)
-uses 1 ATP -hexokinase- all cells, operates at low [glucose] -glucokinase- inducible enzyme, operates at high [glucose] in liver and pancreas |
