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Nutrition Fundamentals
nutrition fundamentals 2a & 2b
93
Nutrition
Undergraduate 3
02/01/2015

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Cards

Term
What is a domesticated animal?
Definition
ancestors have undergone domestication process, and the animal is under direct human control
Term
What is a tame animal?
Definition
familiar with humans, but not necessarily domestic
Term
What is a feral animal?
Definition
ancestors have undergone domestication process, but animal is living in a wild state
Term
What is nutrition?
Definition
1. the process by which an animal procures & processes food & uses it for function of its internal metabolism

2. study of the nutrients in food & how they support growth, maintenance, production etc
Term
What are the types of digestion?
Definition
mechanical
chemical
microbial
Term
True or False

Nutrients can be both inorganic & organic
Definition
true
Term
What are the nutrient groups?
Definition
O2
H2O
CHO
lipids
proteins
vitamins
minerals
Term
What are the inorganic nutrients?
Definition
H2O
O2
minerals
Term
What is metabolic water?
Definition
water produced by the oxidation of nutrients
Term
What are the pentose sugars?
Definition
ribose
Term
What are the hexose sugars?
Definition
glucose, fructose & galactose
Term
Sucrose consists of....
Definition
glucose + fructose
Term
True or False

Mono & disaccharides are soluble
Definition
true
Term
True or False

Polysaccharides are soluble
Definition
false
Term
What are some examples of plant & animal sourced carbohydrates?
Definition
Plant
-starch, cellulose, hemicellulose, nucleic acids

Animal
-glycogen, nucleic acids RNA & DNA
Term
What AA is found in relatively high amounts in keratin
Definition
cysteine
Term
Give some examples of sources of plant proteins
Definition
seeds & enzymes within the plant cells
Term
What is a phospholipid?
Definition
2 FA + glycerol + phosphate
Term
How many carbon atoms are there, and how many double bonds in 18:2n-6? Where are the double bonds?
Definition
18C, 2 double bonds

-the first double bond is at the 6th carbon from the CH3 end of the FA
Term
As the number of carbons increases, the melting point & solubility of a FA.....
Definition
Melting point increases
Solubility decreases
Term
As the number of double bonds of a FA increases, melting point....
Definition
decreases
Term
What types of fats are typically stored in adipose tissue?
Definition
long-chain triglycerides & saturated fatty acids
Term
What types of fats are typically stored in seeds & nuts?
Definition
MUFAs & PUFAs
Term
Where are carbohydrates stored in animals?
Definition
liver & muscle
Term
What is the ratio for grams of glycogen stored to grams of water, in muscle?
Definition
1g gycogen for every 3-4g of water
Term
What are the essential amino acids?
Definition
Phe
Arg
Met
His
Val
Iso
Leu
Lys
Trp
Thr
Term
What are the essential fatty acids?
Definition
linoleic (n6)
alpha-linolenic (n3)

arachidonic & eicosopentaenoic acid for obligate carnivores (e.g. cats)
Term
True or False

Vitamins are used as structural components for animals
Definition
False
Term
Why is Vit A essential for cats but not dogs?
Definition
dogs can use beta-carotene to produce vit A, cats cannot
Term
VITAMIN A

Also called...
What are some sources?
What is it used for?
Where is it stored?
What are results of deficiency?
Definition
AKA retinol/retinal
Sources: liver, fish oil, B-carotene in orange/yellow plants

For: cell synthesis, vision
Stored: in liver
Deficiency: night blindness
Term
VITAMIN D

Also called...
What are some sources?
What is it used for?
Where is it stored?
What are results of deficiency?
Definition
Also called ergocalciferol (D2) and cholecalciferol (D3)

Sources: sunlight, fish oil
Used for: Ca & P deposition & resorption, bone/teeth
Stored: in liver, fat
Deficiency: ricketts, osteomalacia
Term
VITAMIN E

Also called...
What are some sources?
What is it used for?
Where is it stored?
What are results of deficiency?
Definition
AKA alpha-tocopherol

For: antioxidant, preventing peroxidation of FAs in lipid membrane
Stored: in fat
Sources: dont know
Deficiency: nutritional muscular dystrophy
Term
VITAMIN K

Also called...
What are some sources?
What is it used for?
Where is it stored?
What are results of deficiency?
Definition
K1 = phylloquinone (in dark plants)
K2 menaquinone (from gut bacteria)
K3 menadione (synthetic, or from gut bacteria)

For: blood clotting
Stored: minmal storage
Deficiency: reduced clotting ability
Term
True or False Vit D2 is essential for amphibians, birds & reptiles
Definition
False D3 is, they cannot use D2 to make D3
Term
B1 is also known as what?
What is used for?
A deficiency will result in what?
Definition
AKA thiamine
used in co-enzyme TPP
beriberi disease
Term
B2 is also known as what?
What is used for?
A deficiency will result in what?
Definition
AKA riboflavin
used in FAD/FMN
deficiency - ???
Term
What vitamin acts alongside coenzyme A?
Definition
pantothenic acid
Term
A deficiency of what vitamin will result in dermatitis?
Definition
biotin
Term
A deficiency of what vitamin will result in pallegra?
Definition
niacin
Term
B6 is also known as what?
What is it used for?
A deficiency will result in what?
Definition
AKA pyridoxine
Used as a cofactor & in AA metabolism
Term
B12 is used for what?
A deficiency will result in what?
Definition
co-enzyme & in RBC synthesis
-pernicious anemia
Term
Where is B12 stored?
Definition
the liver
Term
What is folic acid used for?
A deficiency will result in what?
Definition
co-enzyme & RNA/DNA synthesis

-anemia
Term
For which animals is Vit C essential?
Definition
invertebrates, fish, primates, bats, whales, guinea pigs

NOT essential for reptiles, amphibians & most birds
Term
Vit C is also known as....
Definition
ascorbic acid
Term
What is choline used for?
Definition
structure of cell membranes, exporting lipids from liver
Term
What animals require choline & inositol? What will result from a deficiency?
Definition
rats & mice
-will develop fatty liver disease
Term
True or False

Plants can synthesize minerals
Definition
false
Term
What are the macrominerals? How do we measure them?
Definition
Ca, P, Mg, K, Na, Cl, S

mg/g DM
Term
What are the microminerals? How do we measure them?
Definition
Fe, Cu, Zn, Mn, Mo, I, Se, Fl, Cr, Co

ug/g DM
Term
When might a deficiency of ultratrace minerals occur?
Definition
when animals consume a highly purified diet in a dust-free environment
Term
What are the top to major mineral constituents of the animal body
Definition
Ca & P
Term
What is the optimal Ca:P ratio
Definition
1:1 or 2:1
Term
What is osteophagia?
Definition
bone chewing
Term
What is Mg used for?
Definition
bones, teeth, nerves, muscle function
Term
What is the main cation in body fluids?
Definition
Na
Term
What is the main anion in body fluids?
Definition
Cl
Term
What is the main intracellular cation?
Definition
K
Term
What macromineral is involved with insulin production?
Definition
S
Term
What is the major micromineral in animals?
Definition
Fe
Term
Geophagia may indicate....
Definition
Fe deficiency??
Term
Where is Fe stored?
Definition
liver
Term
What is Cu used for?
Definition
haemoglobin & melanin formation
Term
When might a conditioned Cu deficiency occur?
Definition
if Mo is present in excess in the diet
Term
When might a conditioned Zn deficiency occur?
Definition
if Ca is present in excess in the diet
Term
What is Zn used for?
Definition
DNA synthesis, feather pigmentation
Term
What is Mn used for?
Definition
cartilage matrix of bones, energy metabolism cofactor
Term
What is Se used for?
Definition
antioxidant
Term
What animals require Co?
Definition
ruminants, some foregut fermentors
Term
What is Co used for?
Definition
synthesis of B12 made by bacteria in gut
Term
Which has a more complex digestive system, herbivores or carnivores?
Definition
herbivores
Term
True or False

A wild carnivore has difficulty obtaining adequate level of all nutrients
Definition
false

-if they have enough energy their diet is typically well balanced
Term
Place the following in the correct sequence

iluem
jejunom
duodenum
Definition
duodenum
jejunum
ileum
Term
What is the typical pH of the stomach & small intestine in carnivores/omnivores
Definition
Stomach: 1.6-4

Small Intestine: 5.2-7.5
Term
What is the major component of all plant food? What is the challenge?
Definition
cell walls (cellulose & hemicellulose)
-lack of enzymes to digest these
-some microbial enzymes can digest cellulose/hemi, but no lignin
Term
What is the solution to herbivores' lack of enzymes to digest plant material?
Definition
-enlarged gut space to allow for microbial fermentation
-digests cellulose & hemicellulose, produces VFAs for energy source
Term
What are the regions for digestion of plant cell walls in herbivores?
Definition
1. Pregastric (forestomach compartments)
2. Postgastric (caecum)
3. Postgastric (colon)
Term
What are the products synthesized by gut bacteria of herbivores? (4)
Definition
-all essential AAs
-all B vitamins
-Vit K
-VFAs
Term
What are the VFAs produced by anaerobic fermentation?
Definition
acetic acid
propionic acid
butyric acid
Term
Aside from fermentation of plant material, what other role do gut bacteria play?
Definition
-detoxify plant toxins
-hydrogenate/saturate EFAs into Stearic acid
Term
What is eructation?
Definition
belching, releasing gases produced by bacteria in the rumen
Term
What is the true stomach of foregut fermenters such as cattle?
Definition
abomasum
Term
Which of the following do camels have?

rumen
reticulum
omasum
abomasum
Definition
rumen & reticulum
Term
What is the pH of the reticulum?
Definition
5.4-6.9
Term
Where does fermentation occur in smaller herbivores such as hamsters?
Definition
caecum
Term
Where does fermentation occur in larger herbivores such as the rhino or elephant?
Definition
colon
Term
What is the pH of the colon in the horse?
Definition
5.4-6.9
Term
What is the issue with post-gastric fermentation?
Definition
lose the benefits of vitamins produced by bacteria, and their detoxifying abilities

-can still absorb VFAs thought
Term
What is the difference between caprophagy and caecotrophy?
Definition
caecotrophy is more selective, ingesting nutritious, soft, moist faeces only (not the hard, dry feces)
Term
What does the omasum do?
Definition
absorbs water
Term
Where are VFAs absorbed?
Definition
reticulum, rumen, caecum, colon
Term
What is the major site of nutrient absorption?
Definition
jejunum
Term
What is unusual about the nutrient requirements of the rabbit?
Definition
-Ca absorption from the gut & blood Ca levels are not well regulated
-normally Ca excess in the blood would be secreted into bile, excreted in feces
-uptake would be regulated by Vit D & hormones

-rabbits have Ca in blood proportional to Ca in the diet
-excess Ca is excreted in the urine (CaCO3)
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