Exam 3 Flashcards
Minerals are divided into 2 categories, ____________ are usually measured in lb/ton, and __________ are measured in ppm or ppb
Macrominerals
Microminerals
Which is better for the desired Ca to P ratio in animals, roughages or grains?
Roughages
Macro or micro?
Chlorine
macro
Structural component of vitamin B12
Cobalt
Vitamin B3
Niacin
Macro or micro?
Phosphorus
macro
Macro or micro?
Sulfur
macro
Vitamin D is activated in the kidney, then activates the uptake of which mineral
Calcium
Macro or micro?
Iron
micro
Macro or micro?
Iodine
micro
_________ are used to transport lipids through the lacteal system
Chylomicrons
Vitamin D
Cholecalciferol
The intracellular component of Na/K pump
Potassium
Deficiency might cause night blindness
Retinol
Vitamin K
Menadione
Obesity is usually attributed to ___ adipose tissue, and the ineffectiveness of ______, the satiety hormone
White
Leptin
Structural component of Coenzyme A
Pantothenic acid
For most B-vitamins, the most common deficiency signs are _____ and _____
Poor growth
Anorexia
A triglyceride is defined as
Three fatty acids bonded (ester) to glycerol
Structural component of NAD
Vitamin A
Retinol
Macro or micro?
Magnesium
macro
When there is a decline in Ca plasma concentration, _____________ is produced by the parathyroid to stimulate the kidney to send active vitamin ________ to the gut to increase Ca absorption
Parathyroid hormone
Vitamin D
Deficiency causes Beriberi in humans and PEM in cattle
Thiamin
Macro or micro?
Calcium
macro
Exists mainly in a 2:1 ration with phosphorus, in a complex called hydroxyapatite crystals
Calcium
Vitamin C
Ascorbic acid
Macro or micro?
Selenium
micro
The extracellular component of Na/K pump
Sodium
Cofactor of enzymes involved with prothrombin production
Thiamin
Vitamin B7
Biotin
Macro or micro?
Sodium
macro
Vitamin B9
Folic acid
Macro or micro?
Copper
micro
An electrolyte that is an intracellular component in acid-base balance
Chlorine
Vitamin B1
Thiamin
Sixty to seventy % present in hemoglobin and myoglobin
Iron
This non-vitamin is involved in fat metabolism
Choline
You are a poultry producer with laying hens. Your birds are showing reduced growth with poor appetite. You notice when collecting eggs that the eggshells are soft. The birds are kept inside. Which vitamin is the bird possibly deficient in?
Vitamin D
Functions similarly to Se
Alpha-tocopherol acetate
The breakdown of fat for energy is a stepwise process that removes two carbons from a fatty acid at a time, called ____________, and this process requires oxygen
Lipolysis
Tightly regulates absorption and resorption of Ca and P
Cholecalciferol
You are a pig producer, and you notice your pigs are agitated and difficult to handle. As your walking the pens you note that they have muscle twitching, are holding their heads up, and are high stepping. In your boars you notice head pressing against the sides of the pen. Which vitamin are the pigs possibly deficient in?
Vitamin B1
Structural component of NAD
Niacin
Once plasma concentration increases, calcitonin is produced by the _________ to stop resorption from the bone, and stimulates cellular uptake of Ca once again
Thyroid
Sheep are very sensitive to this trace mineral
Copper
Avidin can tie up this vitamin associated with TCA cycle and gluconeogenesis
Biotin
Vitamin B12
Cyanocobalamin
Cobalt is a structural component
Cyanocobolamin
High levels of this macromineral could cause ‘feedlot polio’
Sulfur
Macro or micro?
Cobalt
micro
Like blood sugar regulation, the cellular uptake of fat and other nutrients is stimulated by
Insulin
Deficiency of this macromineral, generally in the spring, is called grass tetany
Magnesium
Macro or micro?
Potassium
macro
Vitamin E
Alpha-tocopherol acetate
Macro or micro?
Manganese
micro
Structural component of FAD
Riboflavin
Vitamin B2
Riboflavin
Toxicity is called blind staggers and animals usually lose their hooves
Selenium
_______ is the disease caused by a vitamin C deficiency, which may occur in __________, apes and guinea pigs
Scurvy
Humans
Important for SAM during periods of rapid DNA synthesis
Folic acid
By adding phytase enzyme to swine or poultry diets, we can reduce the level of macromineral by 0.1%
Phosphorus
What would be the typical Ca:P ratio in most animal diets?
2:1
Most B-vitamins are associated with energy metabolism, which one did we talk about specifically for protein and nitrogen metabolism?
B6 Pyridoxine
Primary source of sodium and chlorine and an intake limiter
Salt
Macro or micro?
Zinc
micro
Vitamin B5
Pantothenic acid
Component of thyroid hormones
Iodine
Vitamin B6
Pyridoxine
Primates require this vitamin for collagen synthesis and metabolism
Ascorbic acid
High calcium can interfere with absorption of this micromineral
Zinc
Roughages (hay/grasses) are usually high in _______ and low in _______
Ca,P
Like fat, fat soluble vitamins must be incorporated into _________ to be absorbed from the small intestine. The enterocyte then reforms fats into ___________ for them to be absorbed into the lacteal system
Micelles
Chylomicron