Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. (1) Vitamin A derivatives are formed from carotene. (2) The photopigments are embedded in the membrane discs of the inner segment. (3) Retinal is a derivative of vitamin A. (4) Retinal is a light absorbing part of all the visual photopigments. (a) (1), (3) and (4) (b) (1) and (3) (c) (2), (3) and (4) (d) (1) and (2)

Good vision depends on adequate intake of carotene
rich food.
Select the best option from the following statements.
(1) Vitamin A derivatives are formed from carotene.
(2) The photopigments are embedded in the
membrane discs of the inner segment.
(3) Retinal is a derivative of vitamin A.
(4) Retinal is a light absorbing part of all the visual
photopigments.
(a) (1), (3) and (4) (b) (1) and (3)
(c) (2), (3) and (4) (d) (1) and (2)
by

1 Answer

Answer :

(b) (1) and (3)
by

Related questions

Good vision depends on adequate intake of carotene rich food : Select the best option from the following statements : (a) Vitamin A derivatives are formed from carotene (b) The photopigments are embedded in the membrane discs of the inner segment (c) Retinal is a derivative of Vitamin A (d) Retinal is a light absorbing part of all the visual photopigments Options : (1) (a), (c) and (d) (2) (a) and (c) (3) (b), (c) and (d) (4) (a) and (b)

Description : Good vision depends on adequate intake of carotene rich food : Select the best option from the following statements : (a) Vitamin A derivatives are formed from carotene (b) The photopigments are embedded in the membrane discs of the inner segment ... (a) and (c) (3) (b), (c) and (d) (4) (a) and (b)

Last Answer : (1) (a), (c) and (d)

Which one of the following statements is not correct? (a) Retinal is the light absorbing portion of visual photopigments. (b) In retina the rods have the photopigment rhodopsin while cones have three different photopigments. (c) Retinal is a derivative of vitamin C. (d) Rhodopsin is the purplish red protein present in rods only.

Description : Which one of the following statements is not correct? (a) Retinal is the light absorbing portion of visual photopigments. (b) In retina the rods have the photopigment rhodopsin while cones have three ... a derivative of vitamin C. (d) Rhodopsin is the purplish red protein present in rods only.

Last Answer : (c) Retinal is a derivative of vitamin C.

Derivatives contract which gives the buyer/holder of the contract the right(but not the obligation) to buy/sell the underlying asset at a predetermined price within or at end of a specified period is known as A. Futures contract B. Option Contract C. Index Futures contract D. Mini Derivative contract E. None of the Above

Description : Derivatives contract which gives the buyer/holder of the contract the right(but not the obligation) to buy/sell the underlying asset at a predetermined price within or at end of a specified period is ... B. Option Contract C. Index Futures contract D. Mini Derivative contract E. None of the Above

Last Answer : B. Option Contract Explanation: Options Contract is a type of Derivatives Contract which gives the buyer/holder of the contract the right (but not the obligation) to buy/sell the underlying asset at a predetermined price within or at end of a specified period.

A male patient 30 years old with visual acuity of 6/6 in both eyes. Twelve hours ago he presented with drop of vision of the left eye. On examination, visual acuity was 6/6 in the right eye and 6/60 in the left eye. Fundus examination showed blurred edges of the left optic disc. The most probable diagnosis is: a. Raised intra cranial pressure b. Raised ocular tension c. Central retinal artery occlusion d. Optic neuritis

Description : A male patient 30 years old with visual acuity of 6/6 in both eyes. Twelve hours ago he presented with drop of vision of the left eye. On examination, visual acuity was 6/6 in the ... : a. Raised intra cranial pressure b. Raised ocular tension c. Central retinal artery occlusion d. Optic neuritis

Last Answer : ANSWER: D

Vitamin A or retinal is a (A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane

Description : Vitamin A or retinal is a (A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane

Last Answer : Answer : B

Vitamin A or retinal is a (A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane

Description : Vitamin A or retinal is a (A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane

Last Answer : (B) Polyisoprenoid compound containing a cyclohexenyl ring

Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) The enzymes of the electron transfer chain are embedded in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.

Description : Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) ... in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.

Last Answer : (c) The enzymes of the electron transfer chain are embedded in the outer membrane.

Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of carbohydrates, fats and proteins. (c) Enzymes of electron transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Description : Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of ... transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.

Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.

The cells of the retinal pigment epithelium: a. are of mesenchymal origin b. are shorter at the fovea than else where in the retina c. have intracellular melanosomes d. regenerate visual pigment e. form the inner outer blood-retina barrier

Description : The cells of the retinal pigment epithelium: a. are of mesenchymal origin b. are shorter at the fovea than else where in the retina c. have intracellular melanosomes d. regenerate visual pigment e. form the inner outer blood-retina barrier

Last Answer : have intracellular melanosome

The non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Description : The non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Last Answer : Answer : A

Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Description : Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Last Answer : Answer : A

In retinal detachment, fluid accumulates between: a. Outer plexiform layer and inner nuclear layer. b. Neurosensory retina and layer of retinal pigment epithelium c. Nerve fiber layer and rest of retina. d. Retinal pigment epithelium and Bruch’s membrane.

Description : In retinal detachment, fluid accumulates between: a. Outer plexiform layer and inner nuclear layer. b. Neurosensory retina and layer of retinal pigment epithelium c. Nerve fiber layer and rest of retina. d. Retinal pigment epithelium and Bruch’s membrane.  

Last Answer : ANSWER: B 

Long chain fatty acids penetrate the inner mitochondrial membrane (A) Freely (B) As acyl-CoA derivative (C) As carnitine derivative (D) Requiring Na dependent carrier

Description : Long chain fatty acids penetrate the inner mitochondrial membrane (A) Freely (B) As acyl-CoA derivative (C) As carnitine derivative (D) Requiring Na dependent carrier

Last Answer : Answer : C

Spinach leaves are rich source of---- A. Amino acid B. Iron (Answer) C. Vitamin E D. Carotene

Description : Spinach leaves are rich source of---- A. Amino acid B. Iron (Answer) C. Vitamin E D. Carotene

Last Answer : B. Iron (Answer)

Spinach leaves are rich source of (1) Vitamin A (2) Iron (3) Carotene (4) Vitamin E

Description : Spinach leaves are rich source of (1) Vitamin A (2) Iron (3) Carotene (4) Vitamin E

Last Answer : (2) Iron

True statements about EOG (electro-oculogram) include: a. the EOG light-peak to dark-trough ratio is reduced in central retinal vein occlusion b. the light peak of EOG is abnormal in Best's disease c. the EOG light rise is produced by depolarization of the basal membrane of the retinal pigment epithelium d. all above

Description : True statements about EOG (electro-oculogram) include: a. the EOG light-peak to dark-trough ratio is reduced in central retinal vein occlusion b. the light peak of EOG is abnormal in Best' ... rise is produced by depolarization of the basal membrane of the retinal pigment epithelium d. all above

Last Answer : all above

Conversion of β-carotene into retinal requires the presence of (A) β-Carotene dioxygenase (B) Bile salts (C) Molecular oxygen (D) All of these

Description : Conversion of β-carotene into retinal requires the presence of (A) β-Carotene dioxygenase (B) Bile salts (C) Molecular oxygen (D) All of these

Last Answer : Answer : D

Purkinje's shift: a. refers to the transition of retinal sensitivity between photopic and scotopic vision b. refers to the shift in the spectral sensitivity of the human retina toward shorter wavelengths of light c. accounts for blue colour appearing brighter at dusk d. all above

Description : Purkinje's shift: a. refers to the transition of retinal sensitivity between photopic and scotopic vision b. refers to the shift in the spectral sensitivity of the human retina toward shorter wavelengths of light c. accounts for blue colour appearing brighter at dusk d. all above

Last Answer : all above

Two molecules of vitamin A can be formed from 1 molecule of (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these

Description : Two molecules of vitamin A can be formed from 1 molecule of (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these

Last Answer : Answer : B

The figure below shows the structure of a mitochondrion with its four parts labelled A, B, C and D. Select the part correctly matched with its function. D B A C (a) D (outer membrane) – gives rise to inner membrane by splitting (b) B (inner membrane) – forms infoldings called cristae (c) C (crista) – possesses single circular DNA molecule and ribosomes (d) A (matrix) – major site for respiratory chain enzyme

Description : The figure below shows the structure of a mitochondrion with its four parts labelled A, B, C and D. Select the part correctly matched with its function. D B A C (a) D (outer ... possesses single circular DNA molecule and ribosomes (d) A (matrix) - major site for respiratory chain enzyme

Last Answer : (b) B (inner membrane) – forms infoldings called cristae

Select the correct statement from the following regarding cell membrane. (a) Na+ and K+ ions move across cell membrane by passive transport. (b) Proteins make up 60 to 70% of the cell membrane. (c) Lipids are arranged in a bilayer with polar heads towards the inner part. (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

Description : Select the correct statement from the following regarding cell membrane. (a) Na+ and K+ ions move across cell membrane by passive transport. (b) Proteins make up 60 to 70% of the cell ... towards the inner part. (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

Last Answer : (d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson.

Select the correct statement from the following regarding cell membrane (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson (2) Na+ and K+ ions move across cell membrane by passive transport (3) Proteins make up 60 to 70% of the cell membrane (4) Lipids are arranged in a bilayer with polar heads towards the inner part

Description : Select the correct statement from the following regarding cell membrane (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson (2) Na+ and K+ ions move across cell membrane by ... of the cell membrane (4) Lipids are arranged in a bilayer with polar heads towards the inner part

Last Answer : (1) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson

Parathyroid hormone (A) Is released when serum Ca++ is too high (B) Inactivates vitamin D (C) Is secreted when Ca++ is too low (D) Depends on vitamin K for adequate activity

Description : Parathyroid hormone (A) Is released when serum Ca++ is too high (B) Inactivates vitamin D (C) Is secreted when Ca++ is too low (D) Depends on vitamin K for adequate activity

Last Answer : Answer : C

Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of kidney and contains complete nephrons. (b) D - Cortex - outer part of kidney and do not contain any part of nephrons. (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown. (d) B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle

Description : Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of ... B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle

Last Answer : (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown.

Safe and adequate daily dietary intake of chromium in adults in mg is (A) 0.01–0.02 (B) 0.02–0.03 (C) 0.03–0.04 (D) 0.05–0.2

Description : Safe and adequate daily dietary intake of chromium in adults in mg is (A) 0.01–0.02 (B) 0.02–0.03 (C) 0.03–0.04 (D) 0.05–0.2

Last Answer : Answer : D

The most important intervention in the nutritional support of a patient with a burn injury is to provide adequate nutrition and calories to: a) decrease catabolism. The most important intervention in the nutritional support of a patient with a burn injury is to provide adequate nutrition and calories to decrease catabolism. Nutritional support with optimized protein intake can decrease the protein losses by approximately 50%.

Description : The most important intervention in the nutritional support of a patient with a burn injury is to provide adequate nutrition and calories to: a) decrease catabolism. The most important intervention ... the energy source is seen after a burn injury; interventions are instituted to decrease catabolism.

Last Answer : a) decrease catabolism. The most important intervention in the nutritional support of a patient with a burn injury is to provide adequate nutrition and calories to decrease catabolism. Nutritional support with optimized protein intake can decrease the protein losses by approximately 50%.

Match the following columns and select the correct option. Column-I Column-II (A) Organ of Corti (i) Connects middle ear and pharynx (B) Cochlea (ii) Coiled part of the labyrinth (C) Eustachian tube (iii) Attached to the oval window (D) Stapes (iv) Located on the basilar membrane

Description : Match the following columns and select the correct option. Column-I Column-II (A) Organ of Corti (i) Connects middle ear and pharynx (B) Cochlea (ii) Coiled part of the labyrinth (C) Eustachian tube (iii) Attached to the oval window (D) Stapes (iv) Located on the basilar membrane

Last Answer : (C) Eustachian tube (iii) Attached to the oval window

According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect? (a) Proteins in cell membranes can travel within the lipid bilayer. (b) Proteins can also undergo flip-flop movements in the lipid bilayer. (c) Proteins can remain confined within certain domains of the membrane.(d) Many proteins remain completely embedded within the lipid bilayer.

Description : According to widely accepted fluid mosaic model cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several ... domains of the membrane. (d) Many proteins remain completely embedded within the lipid bilayer.

Last Answer : (b) Proteins can also undergo flip-flop movements in the lipid bilayer.

Visual-evoked response: a. is used primarily to detect visual loss due to retinal disease b. produces biphasic wavefronts c. may give falsely delayed latency if the patient is not concentrating d. produces responses in normal subjects with a latency of 100msec

Description : Visual-evoked response: a. is used primarily to detect visual loss due to retinal disease b. produces biphasic wavefronts c. may give falsely delayed latency if the patient is not concentrating d. produces responses in normal subjects with a latency of 100msec

Last Answer : produces responses in normal subjects with a latency of 100msec

Which of the following statements is not correct? (a) An action potential in an axon does not move backward because the segment behind is in a refractory phase. (b) Depolarisation of hair cells of cochlea results in the opening of the mechanically gated potassium-ion channels. (c) Rods are very sensitive and contribute to daylight vision. (d) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.

Description : Which of the following statements is not correct? (a) An action potential in an axon does not move backward because the segment behind is in a refractory phase. (b) Depolarisation of hair cells ... d) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.

Last Answer : (c) Rods are very sensitive and contribute to daylight vision.

In binocular vision: a. only points on the horopter fall on the corresponding retinal point b. points in front of the horopter will stimulate binasal retina c. points outside the horopter is perceived doubly d. the Panum's fusional area is wider in the centre than the periphery e. sensory fusion refers to the cortical integration of images perceived by the two eyes

Description : In binocular vision: a. only points on the horopter fall on the corresponding retinal point b. points in front of the horopter will stimulate binasal retina c. points outside the horopter ... the periphery e. sensory fusion refers to the cortical integration of images perceived by the two eyes

Last Answer : only points on the horopter fall on the corresponding retinal point

Which is not found in papilloedema? a. Blurred vision b. Blurred margins of disc c. Cupping of disc d. Retinal edema

Description : Which is not found in papilloedema? a. Blurred vision b. Blurred margins of disc c. Cupping of disc d. Retinal edema

Last Answer : ANSWER: C 

Commonest lesion which hinders vision in diabetic retinopathy is: a. Macular oedema b. Microaneurysm c. Retinal hemorrhage d. Retinal detachment

Description : Commonest lesion which hinders vision in diabetic retinopathy is: a. Macular oedema b. Microaneurysm c. Retinal hemorrhage d. Retinal detachment  

Last Answer : ANSWER: A

A young patient with sudden painless loss of vision, with systolic murmur and ocular examination reveals a cherry red spot with clear AC, the likely diagnosis is: a. Central Retinal Artery Occlusion b. Central Retinal Vein Occlusion c. Diabetes Mellitus d. Branch Retinal Vein Occlusion

Description : A young patient with sudden painless loss of vision, with systolic murmur and ocular examination reveals a cherry red spot with clear AC, the likely diagnosis is: a. Central Retinal Artery Occlusion b. Central Retinal Vein Occlusion c. Diabetes Mellitus d. Branch Retinal Vein Occlusion  

Last Answer : ANSWER: A

Which one of the following is the correct difference between rod cells and cone cells of our retina? Rod cells Cone cells (a) Overall Vision in poor Colour vision function light and detailed vision in bright light (b) Distribution More Evenly concentrated in distributed centre of retina all over retina (c) Visual acuity High Low (d) Visual pigment Iodopsin Rhodopsin contained

Description : Which one of the following is the correct difference between rod cells and cone cells of our retina? Rod cells Cone cells (a) Overall Vision in poor Colour vision function light and detailed ... of retina all over retina (c) Visual acuity High Low (d) Visual pigment Iodopsin Rhodopsin contained

Last Answer : (a) Overall Vision in poor Colour vision function

Select the wrong statement from the following. (a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane. (b) Both chloroplasts and mitochondria contain DNA. (c) The chloroplasts are generally much larger than mitochondria. (d) Both chloroplasts and mitochondria contain an inner and an outer membrane.

Description : Select the wrong statement from the following. (a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane. (b) Both chloroplasts and ... mitochondria. (d) Both chloroplasts and mitochondria contain an inner and an outer membrane.

Last Answer : (a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane.

In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these can be used as a vector/vectors. (i) Bacterium (ii) Plasmid (iii)Plasmodium (iv) Bacteriophage (a) (i), (ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)

Description : In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these ... ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)

Last Answer : (d) (ii) and (iv)

.For an onlay preparation, which of the following is the MOST EFFECTIVE means for verifying adequate occlusal clearance A. Wax bite chew in B. Proper depth cuts C. Visual inspection D. Articulating paper

Description : .For an onlay preparation, which of the following is the MOST EFFECTIVE means for verifying adequate occlusal clearance A. Wax bite chew in B. Proper depth cuts C. Visual inspection D. Articulating paper

Last Answer : A. Wax bite chew in

The nurse teaches the patient with a high risk for osteoporosis about risk-lowering strategies including which of the following statements? a) Walk or perform weight-bearing exercises out of doors. Risk-lowering strategies for osteoporosis include walking or exercising out of doors, performing a regular weight-bearing exercise regimen, increasing dietary calcium and vitamin D intake, smoking cessation, and consuming alcohol and caffeine consumption in moderation.

Description : The nurse teaches the patient with a high risk for osteoporosis about risk-lowering strategies including which of the following statements? a) Walk or perform weight-bearing exercises out ... alcohol and caffeine consumption in moderation, and performing a regular weight-bearing exercise regimen.

Last Answer : a) Walk or perform weight-bearing exercises out of doors. Risk-lowering strategies for osteoporosis include walking or exercising out of doors, performing a regular weight-bearing exercise ... and vitamin D intake, smoking cessation, and consuming alcohol and caffeine consumption in moderation.

The intake of solid food by infloding of cell membrane is called (A) Exocytosis (B) Pinocytosis (C) Phagocytosis (D) Both B and C

Description : The intake of solid food by infloding of cell membrane is called (A) Exocytosis (B) Pinocytosis (C) Phagocytosis (D) Both B and C

Last Answer : (C) Phagocytosis

To produce a stable correction of an upper labial segment in lingual crossbite; it is essential to:** A. Use fixed appliances B. Have adequate overbite C. Treat during growth D. Use posterior capping E. Increase vertical dimension

Description : To produce a stable correction of an upper labial segment in lingual crossbite; it is essential to:** A. Use fixed appliances B. Have adequate overbite C. Treat during growth D. Use posterior capping E. Increase vertical dimension

Last Answer : B. Have adequate overbite

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because (a) a proton gradient forms across the inner membrane(b) there is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP) (c) high energy bonds are formed in mitochondrial proteins (d) ADP is pumped out of the matrix into the intermembrane space.

Description : The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because (a) a proton gradient forms across the inner membrane (b) there is a ... mitochondrial proteins (d) ADP is pumped out of the matrix into the intermembrane space.

Last Answer : (a) a proton gradient forms across the inner membrane

Vitamins that function as dinucleotide derivatives include all the following except (A) Thiamine (B) Niacin (C) Nicotinate (D) Vitamin B2

Description : Vitamins that function as dinucleotide derivatives include all the following except (A) Thiamine (B) Niacin (C) Nicotinate (D) Vitamin B2

Last Answer : Answer : A

Select the correct pair of endormeral derivatives

Description : Select the correct pair of endormeral derivatives

Last Answer : Select the correct pair of endormeral derivatives A. Adrenal medulla, dermis of skin B. Lungs, ... C. Lymphatic vessel, vagina D. Retina, tonsil

The retinal pigment epithelium (RPE): a. is sensitive to hypervitaminosis A b. isomerizes all-trans-retinal to 11-cis-retinol c. does not undergo mitosis in response to injury d. secrets the outer layer of the basal lamina that forms the Bruch's membrane.

Description : The retinal pigment epithelium (RPE): a. is sensitive to hypervitaminosis A b. isomerizes all-trans-retinal to 11-cis-retinol c. does not undergo mitosis in response to injury d. secrets the outer layer of the basal lamina that forms the Bruch's membrane.

Last Answer : isomerizes all-trans-retinal to 11-cis-retinol

Which is a pro vitamin or vitamin that has antioxidant properties? (A) Beta carotene (B) Vitamin E (C) Vitamin C (D) Vitamin D

Description : Which is a pro vitamin or vitamin that has antioxidant properties? (A) Beta carotene (B) Vitamin E (C) Vitamin C (D) Vitamin D

Last Answer : Answer : B

One international Unit of vitamin A is the activity present in (A) 0.3 µg of β-Carotene (B) 0.3 µg of retinol (C) 0.6 µg of retinoic acid (D) All of these

Description : One international Unit of vitamin A is the activity present in (A) 0.3 µg of β-Carotene (B) 0.3 µg of retinol (C) 0.6 µg of retinoic acid (D) All of these

Last Answer : Answer : B

Precursor of Vitamin A is (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these VITAMINS 121

Description : Precursor of Vitamin A is (A) α-Carotene (B) β-Carotene (C) γ-Carotene (D) All of these VITAMINS 121

Last Answer : Answer : D

The molecule of vitamin A1 contains (A) Benzene ring (B) β-Ionone ring (C) β-Carotene ring (D) None of these

Description : The molecule of vitamin A1 contains (A) Benzene ring (B) β-Ionone ring (C) β-Carotene ring (D) None of these

Last Answer : Answer : B