ANSC 3400 Exam 3 Study Guide

What biological function is vitamin K best known for?

Blood Clotting

What is not true about phytate?

Pancreatic phytase can degrade phytate in non-ruminants

What form of Vitamin E is the most biologically active?

a-Tocopherol

What form of Vitamin D is obtained from animal products?

Cholecalciferol

What is Phytate?

storage form of phosphorus in plants

What vitamin or mineral does not have any antioxidant functions in animals?

Magnesium

What nutrient is milk deficient in?

Iron

What mineral in considered a trace mineral?

Iron

What vitamin increases calcium absorption in the small intestine and calcium resorption across the kidney?

Vitamin D

What protein is the master regulator of iron uptake in the small intestine?

Hepcidin

What species would benefit most from phytate supplementation in the diet?

Poultry

What naturally occurring lipid is the immediate precursor for pro-vitamin D synthesis in animals?

Cholesterol

What mineral do ruminants that are fed non-protein nitrogen also need for the rumen microbes to produce methionine and cysteine?

Sulfur

What is a typical ratio of total calcium to phosphorus for growing animals?

2:1

Match the Vitamins with their common deficiency symptom

Vision Problems-Vitamin A

Low Blood calcium concentration- D

Impaired blood clotting- Vitamin K

Incoordination- Vitamin B1

Anemia- Vitamin B9

Low blood glucose Concentrations- Vitamin B12

What mineral is the major intracellular inorganic cation?

Potassium

What is the major route loss if iron loss in animals?

Hemorrhage

What best accounts for the energy lost as heat in the heat increment of feeding?

Energy loss associated with the digestion, absorption, and utilization of feed (longest answer choice)

What mineral in required for all enzymes that either synthesize or utilize ATP

Magnesium

What biological function is Vitamin C best known for?

Collagen Synthesis

What other trace minerals are essential for iron binding to transferrin and transport to other tissue?

Copper

What hormone increases the conversion of calcifediol to the calcitriol in the kidney?

Parathyroid Hormone

What vitamin deficiency is not linked to neurological problems in livestock animals?

Ascorbic Acid

What is not a function of iron in animals?

Cobalamin Absorption

What vitamin or mineral is not associated with redox reactions?

Zinc

What vitamin deficiency is associated with impairments in amino acid metabolism?

Vitamin B6

What is not an example of an organic source of sulfur in a ruminant diet?

Sulfate

What type of reaction does thiamine help carry out?

Oxidative Decarboxylation

Match the Vitamin with its Corresponding letter

Thaimine-B1

Cobalamin-B12

Niacin-B3

a-Tocopherol-E

Retinoic Acid-A

Phylloquinone-K

Biotin-B7

Folacin-B9

What animal benefits most from an injection of iron shortly after birth?

Piglets

What animal can rely on microbial synthesis of water-soluble vitamins to meet its requirements?

Cattle

What species is not able to convert B-carotene to the active form of Vitamin A?

Cats

What molecule in urine contains energy and contributes to the energy loss from digestible energy to metabolizable energy?

Urea

What common property or function do thiamine, niacin, and riboflavin share in animals?

Energy Metabolism

What vitamin is a precursor for NAD+ and NADP+

Vitamin B3

What mineral is required for rumen microbes to synthesize B12 in ruminant animals?

Cobalt

What type of reaction does Vitamin B6 help carry out?

Transaminiation

What causes elevated levels of parathyroid hormone in blood?

Low Blood Calcium

What vitamin can be synthesized from the amino acid trptophan?

Niacin

Why are fat soluble vitamins considered potentially more toxic compared to water-soluble vitamins?

Fat-Soluble vitamins accumulate in tissue

What cell type is first affected from a vitamin B9 or vitamin B12 deficiency?

Intestinal Stem Cell

What vitamin promotes iron absorption?

Vitamin C

What mineral is considered a macro mineral?

Phosphorus

What animal uses most of its daily energy intake for maintenance functions?

Mature boar

What mineral when deficient can mimic vitamin E deficiency in animals?

Selenium

What form of energy loss does net energy account for compared to metabolisable energy?