Role of Vitamins

Question 1

Vitamin A does not exist as such in plants, but is present as precursors or pro-vitamin including a,b and g carotenes, cryptoxanthine, and mycoxanthin. Which of these occur in blue green algae?

Answer 1

mycoxanthin

Question 2

Vitamin A does not exist as such in plants, but is present as precursors or pro-vitamin including a,b and g carotenes, cryptoxanthine, and mycoxanthin. Which of these is the most widely distributed and most active?

Answer 2

Provitamin ß- carotene

Question 3

What vitamin is helpful in the transmission of light stimuli from the eye to the brain?

Answer 3

vitamin A

Question 4

Lack of this vitamin in the diet causing keratosis of the skin (dryness and roughness of skin). A keratosis especially of the hair follicles is a prominent feature

Answer 4

Vitamin A

Question 5

In the eyes, there are protein receptors. Rods are concerned with vision in dim light while the _______ are concerned with bright light and color vision.

Answer 5

cones

Question 6

cyanopsin are present in meanwhile rhodopsin and porphyropsin are present in?

Answer 6

rod

Question 7

Cyanopsin are present cones. What are the two specific protein present in rod?

Answer 7

rhodopsin and porphyropsin

Question 8

Diet deficient in Vitamin A causing impaired rhodopsin formation which make unable to see in dim light.

Answer 8

Night Blindness

Question 9

Cattle with prolonged eye symptoms leading to excessive watering, softening and cloudiness of the cornea. Characterized by a drying of the conjunctiva.

Answer 9

xerophthalmia

Question 10

Excess of this vitamin causes hypervitaminosis in the body resulting in diseases of the nervous system, bone diseases, abnormalities and vomiting. The most characteristic signs of hypervitaminosis are skeletal malformations, spontaneous fracture,
internal hemorrhage, degenerative atrophy and fatty infiltration of liver.

Answer 10

Vitamin A

Question 11

Two most important of vitamin D are D2 (ergocalciferol) and D3 (Cholecalciferol).
Cholecalciferol is derived from 7-dehydrocholesterol meanwhile ergocalciferol is produced from?

Answer 11

ergosterol, which occurs in plants

Question 12

What is the main power that converts provitamin to Vitamin D?

Answer 12

UV light

Question 13

Skeletal deformities characterized by enlarged junction between bone and cartilages,
curvature of the bones, tendency to drag hind legs, beaded ribs, deformed thorax and weakening of muscular tissue and susceptibility to infection. Young animals most susceptible.

Answer 13

ricket

Question 14

Young animals develops ricket and retarded growth due to vitamin d deficiency, meanwhile in older animals deficiency causes ______, where there is reabsorption of bone calcium already laid down.

Answer 14

osteomalacia

Question 15

causes the bone and beak to become soft and rubbery, growth is usually retarded and the legs may become bowed, ruffled feathers. Egg production is reduced and egg quality deteriorates.

Answer 15

lack of vitamin d

Question 16

In swine, deficiency of _______ causes poor growth, stiffness, lameness and stilted gait,
softness of bones, bone deformities, unthriftiness, enlargement and erosion of joints.

Answer 16

vitamin D

Question 17

chemical name of vitamin A1

Answer 17

retinol

Question 18

chemical name of vitamin A2

Answer 18

dehydroretinol

Question 19

chemical name of vitamin D2

Answer 19

ergocalciferol

Question 20

chemical name of vitamin D3

Answer 20

cholecalciferol

Question 21

chemical name of vitamin E

Answer 21

tocopherol

Question 22

chemical name of vitamin K1

Answer 22

phylloquinone

Question 23

chemical name of vitamin K2

Answer 23

menaquinone

Question 24

chemical name of vitamin K3

Answer 24

menadione

Question 25

It is caused by lack of Vitamin E in cattle affecting the skeletal muscles, which is manifested by difficulty in standing, trembling and staggering gait.

Answer 25

Nutritional myopathy (muscular dystrophy)

Question 26

Nutritional myopathy in lambs is called ______, which the animals are unable to rise and weakness of the neck muscles prevents them from raising their heads.

Answer 26

stiff lamb disease (white muscle disease)

Question 27

In pigs vitamin E deficiency diseases are myopathy and cardiac disease known as?

Answer 27

mulberry heart disease (hemorrhagic lesions within the heart that gives characteristic 'mulberry' appearance)

Question 28

In pigs vitamin E deficiency diseases are myopathy and cardiac disease known as?

Answer 28

mulberry heart disease (hemorrhagic lesions within the heart that gives characteristic 'mulberry' appearance)

Question 29

Another term for nutritional encephalomalacia, characterized by ataxia, head retraction and cycling with legs in poultry caused by vitamin E deficiency.

Answer 29

Crazy chick disease

Question 30

This fat soluble vitamin is nontoxic even at higher doses.

Answer 30

Vitamin E

Question 31

exudative diathesis, nutritional encephalomalacia (Crazy chick disease), and muscular atrophy are deficiency of vitamin e in what animals?

Answer 31

poultry

Question 32

Vitamin K is for the Danish word?

Answer 32

coagulation

Question 33

vitamin K is necessary for the formation of ________, important intermediate of the blood clotting process

Answer 33

prothrombin

Question 34

The symptom of vitamin __ deficiency in chicks is a delayed clotting time of the blood; birds are easily injured and may bleed to death. Chicks show anemia, which in part may be due to loss of blood or to the development of a hypoplastic bone marrow.

Answer 34

K

Question 35

What is the only member of the water-soluble groups that is not a member of the B family and its functions and characteristics are different from the B complex vitamins?

Answer 35

Vitamin C

Question 36

chemical name of vitamin B1

Answer 36

thiamin

Question 37

chemical name of vitamin B2

Answer 37

riboflavin

Question 38

chemical name of niacin

Answer 38

nicotinamide

Question 39

chemical name of vitamin B6

Answer 39

pyridoxine

Question 40

chemical name of vitamin B12

Answer 40

cyanocobalamin

Question 41

chemical name of vitamin c

Answer 41

ascorbic acid

Question 42

Considered to be the oldest vitamin. Deficiency of this causes beriberi in man which is earliest documented deficiency disorder.

Answer 42

Vitamin B1 (thiamin)

Question 43

Characterized by numbness of the legs, later with pain in muscles, severe exhaustion, finally emaciation and paralysis. The patients have difficulty in breathing, there is an abnormal enlargement of the right side of the heart and decrease in the rate of the heartbeat. The most characteristics feature of the disease is the so-called peripheral neuritis

Answer 43

beriberi disease

Question 44

Deficiency causes slow growth and develops "curled toe paralysis" a specific symptom, caused by peripheral nerve degeneration, in which the chicks walk on their hocks with toe curled inwards.

Answer 44

Vitamin B2 (Riboflavin)

Question 45

condition in which the down feathers continue to grow inside the follicle, resulting in a coiled feather (caused by vitamin B2 deficiency)

Answer 45

clubbed down

Question 46

The deficiency of vitamin causes "black tongue" characterized by inflammation of the mouth and the upper part of the esophagus in poultry.

Answer 46

niacin (nicotinamide)

Question 47

In swine niacin deficiency is known as _____ the disease is characterized by poor growth, poor hair and skin condition, occasional vomiting and diarrhea.

Answer 47

pig pellagra

Question 48

Vitamin B6 (Pyridoxine) exists in three forms

Answer 48

pyridoxine, pyridoxal, and pyridoxamine

Question 49

causes acute convulsion, flatter on the pen, usually start kicking, a characteristic pasture with wings slightly spread and head resting on ground and generally die

Answer 49

pyridoxine deficiency

Question 50

causes goose stepping gait, a typical nerve disease that is characterized by movement of hind leg become stiff and jerky, exaggerated legs

Answer 50

pantothenic acid

Question 51

first described as the factor protective against" egg white injury"

Answer 51

biotin

Question 52

disease associated with vitamin c

Answer 52

scurvy

Question 53

lack of this vitamin causes reduced resistance to infection

Answer 53

vitamin c

Question 54

Poor growth, scaly skin, ‘goose-stepping’ in pigs

Answer 54

pantothenic acid

Question 55

Poor growth, fatty liver, perosis

Answer 55

choline

Question 56

deficiency causes blindness

Answer 56

vitamin a