The structure which prevents the entry of food into respiratory tract is

Question

The structure which prevents the entry of food into respiratory tract is

A. larynx

B. pharynx

C. glottis

D. epiglottis

Share this question with your friends

Show all Digestive System MCQ

Comment

Beri beri caused by deficiency of vitamin B, was discovered by

A. Stanley

B. Foxon

C. Funk

D. Fijkman

Discuss this answer

The enzyme which acts neither in acidic nor in alkaline medium is

A. steapsin

B. ptyalin

C. pepsin

D. trypsin

Discuss this answer

The substrate for gastric enzymes, renin is

A. pepsin

B. casein of milk

C. starch

D. lipids of milk

Discuss this answer

Xerophthalmia in children and Nyctalopia (night blindness) in adults is caused by deficiency of vitamin

A. A

B. D

C. E

D. K

Discuss this answer

Chronic alcoholics are always short of

A. A

B. B

C. C

D. D

Discuss this answer

Which of the following is not an attribute of an enzyme?

A. It is a protein whose synthesis is controlled and directed by a specific gene

B. It catalyses a specific chemical reaction

C. It becomes denatured by high temperature

D. It is consumed in a chemical reaction

Discuss this answer

Scurvy is caused due to dificiency of

A. vitamin C

B. vitamin D

C. vitamin K

D. vitamin A

Discuss this answer

Which is the best source of vitamin B^1?

A. Cod liver oil

B. Egg

C. Whole wheat bread

D. Curd

Discuss this answer

The antihaemorrhagic vitamin is essential for coagulation of blood. It is

A. B

B. D

C. E

D. K

Discuss this answer

Excessive reabsorption of vitamin A by bone leads to

A. keratomalacia

B. hypercalcaemia

C. hyperkeratosis

D. beri beri

Discuss this answer

Deficiency of Vitamin D in children causes

A. beri-beri

B. pelagra

C. rickets

D. osteomalacia

Discuss this answer

Synthesis of vitamin A takes place in

A. blood

B. spleen

C. pancreas

D. liver

Discuss this answer

Vitamin A was discovered by

A. Mc. Collum and Devis

B. Richert and Dam

C. Funk

D. Ejikmann Christian

Discuss this answer

A vitamin which is excreted in urine usually is

A. C

B. K

C. Bi

D. E

Discuss this answer

Trypsin acts in a medium which is

A. neutral

B. highly alkaline

C. acidic

D. slightly alkaline

Discuss this answer

Trypsin is secreted by

A. stomach

B. pancreas

C. liver

D. duodenum

Discuss this answer

Synthesis of vitamin D with the help of sunlight takes place by

A. skin

B. liver

C. adipose tissue

D. gallbladder

Discuss this answer

Fat soluble vitamins are

A. A, D and E

B. B, C and D

C. E, D and B

D. A, B and C

Discuss this answer

Deficiency of vitamin K may lead to

A. failure of clotting of blood

B. non-maturation of ova

C. blastocyst formation in uterus

D. neuritis

Discuss this answer

Vitamin B is related with

A. FMN/FAD

B. NAD

C. NADH

D. ATP

Discuss this answer

Water-soluble vitamins are

A. A, B and C

B. C and D

C. B and C

D. None of these

Discuss this answer

Vitamins are

A. inorganic substances that cannot be synthesised by animal

B. inorganic substances that can be synthesised by animal

C. organic substances that cannot be synthesised by animal

D. organic substances that can be synthesised by animal

Discuss this answer

Which is vital for protein synthesis?

A. Thiamine

B. Riboflavin

C. Nicotinic add

D. Cyanocobalamin

Discuss this answer

The enzymes have porteinous and prosthetic groups connected by loose bonds. Under activity the loose bonds are separated. It is known as

A. diakinesis

B. synapsis

C. dialysis

D. histolysis

Discuss this answer

Ascorbic acid is

A. vitamin A

B. vitamin C

C. vitamin B

D. biotin

Discuss this answer

Bile helps in

A. producing enzymes

B. esterification

C. both (a) and (b)

D. emulsification of fats

Discuss this answer

Hie enzyme invertase converts

A. starch into glucose

B. glucose into sucrose

C. cellulose into starch

D. sucrose into glucose and fructose

Discuss this answer

Substance required to overcome xerophthalmia derived from carrots is

A. vitamin A

B. vitamin D

C. proteins

D. xanthophyll

Discuss this answer

The structure which prevents the entry of food into respiratory tract is

A. larynx

B. pharynx

C. glottis

D. epiglottis

Discuss this answer

Calciferol is

A. vitamin A

B. vitamin B

C. vitamin C

D. vitamin D

Discuss this answer

Accepted Answer

D. epiglottis

The structure which prevents the entry of food into respiratory tract is

Correct Answer :

Show all Digestive System MCQ

Related Questions

Beri beri caused by deficiency of vitamin B, was discovered by

The enzyme which acts neither in acidic nor in alkaline medium is

The substrate for gastric enzymes, renin is

Xerophthalmia in children and Nyctalopia (night blindness) in adults is caused by deficiency of vitamin

Chronic alcoholics are always short of

Which of the following is not an attribute of an enzyme?

Scurvy is caused due to dificiency of

Which is the best source of vitamin B^1?

The antihaemorrhagic vitamin is essential for coagulation of blood. It is

Excessive reabsorption of vitamin A by bone leads to

Deficiency of Vitamin D in children causes

Synthesis of vitamin A takes place in

Vitamin A was discovered by

A vitamin which is excreted in urine usually is

Trypsin acts in a medium which is

Trypsin is secreted by

Synthesis of vitamin D with the help of sunlight takes place by

Fat soluble vitamins are

Deficiency of vitamin K may lead to

Vitamin B is related with

Water-soluble vitamins are

Vitamins are

Which is vital for protein synthesis?

The enzymes have porteinous and prosthetic groups connected by loose bonds. Under activity the loose bonds are separated. It is known as

Ascorbic acid is

Bile helps in

Hie enzyme invertase converts

Substance required to overcome xerophthalmia derived from carrots is

The structure which prevents the entry of food into respiratory tract is

Calciferol is

Also checkout