Exam 1 Flashcards
Why are ruminants able to use structural carbohydrates, e.g., cellulose, more efficiently than nonruminants?
The rumen is a fermentation system.
The microbes can breakdown fiber (cellulose) to VFAs.
VFAs examples
Acetate
Propionate
Glutyrate
What are VFAs absorbed by
Papillae
Pathway of amylopectin’s from mouth to small intestine
Amylopectin —> mouth (salivary amylase) —> stomach —> small intestine —> pancreas (pancreatic amylase) —> glucose, oligosaccharides (lactase, sucrose), maltose, alpha-dextrins
Inputs examples
Drinking
Feed
Metabolic
Outputs examples
Feces
Urine
Insensible - skin, lungs
Which route of water output accounts for the greatest proportion of water loss?
Insensible loss via lungs
Which property of water enables it to be such a great physiological solvent
Property polar compound
Decrease pH [lactic acidosis] (starch)
- Damage papillae
- (-) cellulytic bacteria
- Systemic acidosis
Glucose —> VFAs produce
2-4 ATP
True or false: glucose and galactose are geoisomers
False
True or false: pancreatic amylase breaks alpha1-4 bonds in starch
True
How many carbons does fructose contain
6
True or false: amylopectin has alpha1-2 branching points
False
True or false: C6H12O6 is the empirical form for mannose
True
Aliphatic side chains
Glycine
Alanine
Valine
Leucine
Side chains containing hydroxylic (OH) groups
Serine
Threonine
Tyrosine
Side chains containing sulfur atoms
Cytosine
Methionine
Side chains containing acidic groups or their amides
Aspartic acid
Asparagine
Glutamic acid
Glutamine