Biomolecules Chemistry NEET MCQ

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    Biomolecules Chemistry NEET MCQ. We covered all the Biomolecules Chemistry NEET MCQ in this post for free so that you can practice well for the exam.

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    Biomolecules Chemistry NEET MCQ for Students

    Quick Quiz

    Hydrolysis of sucrose are

    (A) Ribose + Glucose

    (B) Fructose + Mannose

    (C) Galactose + Glucose

    (D) Glucose + Fructose

    Option d – Glucose + Fructose

    Hydrolysis of starch gives ( Biomolecules Chemistry NEET MCQ )

    (A) Fructose

    (B) Glucose

    (C) Lactose

    (D) Galactose

    Option b – Glucose

    Prolong heating with hydroiodic acid and glucose gives

    (A) Glucose hexaiodide

    (B) Glucose pentaiodide

    (C) Glucose tetraiodide

    (D) n-Hexane

    Option d – n-Hexane

    Which is Aldotetrose? ( Biomolecules Chemistry NEET MCQ )

    (A) 2,3-dihydroxy propanal

    (B) Erythrose

    (C) Erythrulose

    (D) Xylose

    Option b – Erythrose

    Fructose is

    (A) Ketotetrose

    (B) Ketohexose

    (C) Aldotriose

    (D) Aldohexose

    Option b – Ketohexose

    Which is not aldopentose? ( Biomolecules Chemistry NEET MCQ )

    (A) Xylose

    (B) Arabinose

    (C) Ribose

    (D) Erythrose

    Option d – Erythrose

    The number of asymmetric carbon atoms in glucose and fructose is respectively

    (A) Five, two

    (B) Five, five

    (C) Four, three

    (D) Four, four

    Option c – Four, three

    In the animal body, carbohydrates are stored as ( Biomolecules Chemistry NEET MCQ )

    (A) Glucose

    (B) Sugar

    (C) Glycogen

    (D) Fructose

    Option c – Glycogen

    Disaccharide among the following is

    (A) Fructose

    (B) Maltose

    (C) Glucose

    (D) Raffinose

    Option b – Maltose

    Which is trisaccharide? ( Biomolecules Chemistry NEET MCQ )

    (A) Stachyose

    (B) Raffinose

    (C) Galactose

    (D) Fructose

    Option b – Raffinose

    Which of the following biomolecule can be expressed as Cx(H₂O)y?

    (A) Proteins

    (B) Lipids

    (C) Fatts

    (D) Carbohydrates

    Option d – Carbohydrates

    Monosaccharides in hydrolysis yield ( Biomolecules Chemistry NEET MCQ )

    (A) 1 to 10 monosaccharide units

    (B) 2 to 20 monosaccharide units

    (C) No monosaccharide unit

    (D) 5 to 15 monosaccharide units

    Option c – No monosaccharide unit

    Which of the following is ketose?

    (A) Erythrose

    (B) Arabinose

    (C) Galactose

    (D) Ribulose

    Option d – Ribulose

    The primary structural materials of organisms are ( Biomolecules Chemistry NEET MCQ )

    (A) Proteins and cellulose

    (B) Vitamins and lipids

    (C) Proteins and 2-chlorobutane

    (D) Cellulose and NaOH

    Option a – Proteins and cellulose

    Lipids are the main ingredient of vegetable oils and

    (A) Milk fats

    (B) Biocatalyst

    (C) Nucleic acid

    (D) Vegetable oil

    Option a – Milk fats

    Which of the following constitutes the genetic material of organisms? ( Biomolecules Chemistry NEET MCQ )

    (A) Vitamin

    (B) Nucleic acid

    (C) Carbohydrate + HCl

    (D) Steroid

    Option b – Nucleic acid

    Which of the following are optically active polyhydroxy aldehydes/ketones/compounds which give rise to such units on hydrolysis?

    (A) Nucleic acids

    (B) Proteins

    (C) Carbohydrates

    (D) Lipids

    Option c – Carbohydrates

    Some carbohydrates like glucose and fructose are ( Biomolecules Chemistry NEET MCQ )

    (A) Fatty acids

    (B) Nucleic acids

    (C) Lipids

    (D) Sugars

    Option d – Sugars

    Fructofuranose exists in …. anomeric forms.

    (A) Four

    (B) Three

    (C) Two

    (D) One

    Option c – Two

    Glucose is ( Biomolecules Chemistry NEET MCQ )

    (A) a Cyclic six-membered ring

    (B) a Cyclic six-membered ring in analogy with pyrene

    (C) a Cyclic five-membered ring in analogy with furan

    (D) a Cyclic five-membered ring

    Option b – a Cyclic six-membered ring in analogy with pyrene

    Inverted sugar is

    (A) A variety of sucrose

    (B) a mixture of glucose and galactose

    (C) an Equimolar mixture of glucose and fructose

    (D) an Optically inactive form of sugar

    Option c – an Equimolar mixture of glucose and fructose

    The pyranose ring structure of glucose contains ( Biomolecules Chemistry NEET MCQ )

    (A) Amide linkage

    (B) Ether linkage

    (C) Ester linkage

    (D) Imine linkage

    Option b – Ether linkage

    Glucose + HCN -> ?

    (A) Rearrangement product

    (B) Oxidation product

    (C) Reduction of product

    (D) Glucose cyanohydrin

    Option d – Glucose cyanohydrin

    When compound A is on oxidation by nitric acid and produces saccharic acid then A will be ( Biomolecules Chemistry NEET MCQ )

    (A) Glucose

    (B) Glucoxime

    (C) Fructose

    (D) Galactose

    Option a – Glucose

    The number of hydroxyl groups in glucose pentacetate is

    (A) Two

    (B) Zero

    (C) Five

    (D) Eight

    Option b – Zero

    A monosaccharide on acetylation gives triacetate, but it is not oxidized by bromine water. The monosaccharide is ( Biomolecules Chemistry NEET MCQ )

    (A) Ribose

    (B) Erythrose

    (C) Erythrulose

    (D) Xylulose

    Option c – Erythrulose

    A laevorotatory carbohydrate present in fruits is

    (A) Maltose

    (B) Lactose

    (C) Sucrose

    (D) Fructose

    Option d – Fructose

    Glucose is not ( Biomolecules Chemistry NEET MCQ )

    (A) Aldohexose

    (B) Carbohydrates

    (C) Aldoses

    (D) Semicarbazide

    Option d – Semicarbazide

    Glyceraldehyde and dihydroxy acetone are a pair of

    (A) Anomers

    (B) Enantiomers

    (C) Epimers

    (D) Functional isomers

    Option d – Functional isomers

    Glucose treated with hydroxylamine to give ( Biomolecules Chemistry NEET MCQ )

    (A) Glucose hydrazone

    (B) Glucose phenyl hydrazone

    (C) Glucoxime

    (D) Glucose semicarbazide

    Option c – Glucoxime

    Which one of the following polymers is used in making bulletproof vests?

    (a) Bakelite

    (b) Polyamides

    (c) Taflon

    (d) Polyurethane

    Option b – Polyamides

    Which one among the following gases readily combines with the hemoglobin of the blood? ( Biomolecules Chemistry NEET MCQ )

    (a) Methane

    (b) Nitrogen dioxide

    (c) Carbon monoxide

    (d) Sulphur dioxide

    Option c – Carbon monoxide

    Cyanide poisoning causes death in seconds because

    (a) it breaks the electron transport chain

    (b) it denatures enzymes in the heart muscle.

    (c) it causes cardiac arrest.

    (d) it causes lysis of red blood cells.

    Option a – it breaks the electron transport chain

    Sweat contains water and ………

    (a) the citric acid

    (b) lactic acid

    (c) salt

    (d) vinegar

    Option c – salt

    Consider the following statements Enzymes and proteins can be correlated with each other in the following ways. I. All proteins are enzymes. II. All enzymes are proteins. III. All enzymes are not proteins. IV. All proteins are not enzymes. Which of the statements given above is/are correct?

    (a) I and III

    (b) II and IV

    (c) I, II and III

    (d) II, III and IV

    Option b – II and IV

    Which among the following is not a polymer?

    (a) Nylon

    (b) Teflon

    (c) Caprolactam

    (d) Polystyrene

    Option c – Caprolactam

    Which one among the following is the natural polymer?

    (a) Nylon

    (b) Teflon

    (c) PVC

    (d) Cellulose

    Option d – Cellulose

    Bakelite is formed by the condensation of

    (a) Urea and formaldehyde

    (b) Phenol and formaldehyde

    (c) Phenol and acetaldehyde

    (d) Melamine and formaldehyde

    Option b – Phenol and formaldehyde

    Teflon is the common name of

    (a) Polytetrafluoroethylene

    (b) Polyvinyl chloride

    (c) Polyvinyl fluoride

    (d) Dichlorodifluoro methane

    Option a – Polytetrafluoroethylene

    Non-stick frying pans are coated with

    (a) Orlon

    (b) Teflon

    (c) Polystyrene

    (d) Polypropylene

    Option b – Teflon

    Which one of the following polymers is not biodegradable?

    (a) Cellulose

    (b) Starch

    (c) Protein

    (d) PVC

    Option d – PVC

    Phenol is used in the manufacture of which one of the following?

    (a) PVC

    (b) Nylon

    (c) Polystyrene

    (d) Bakelite

    Option d – Bakelite

    Consider the following statements. I. Vitamins are complex organic molecules. II. Vitamins are required in small amounts for our life. Ill. Water-soluble vitamins can be stored in our bodies. Which of the above statement(s) is/are correct?

    (a) I and II

    (b) I and III

    (c) II and III

    (d) Only III

    Option a – I and II

    Which of the following statements about vitamins is correct? I. Vitamine C is essential to make connective tissue in the body. II. Vitamin D is needed for the synthesis of eye pigment. III. Vitamin B₂ helps in the maturation of RBC. IV. Vitamin C is required to make use of calcium absorbed from the intestine. Select the correct answer using the codes given below.

    (a) I and II

    (b) I and III

    (c) II and IV

    (d) I and IV

    Option b – I and III

    Enzymes

    (a) accelerate biochemical reactions

    (b) consist of amino acids

    (c) have optimum activity at body temperature

    (d) have all these properties.

    Option d – have all these properties

    Which one of the following hormones contains a peptide chain?

    (a) Oxytocin

    (b) Corticotropin

    (c) Insulin

    (d) Cortisone

    Option a – Oxytocin

    The function of enzymes in the living system is to

    (a) Transport oxygen

    (b) provide immunity

    (c) catalyze biochemical reaction

    (d) provide energy

    Option c – catalyze biochemical reaction

    Which one of the following enzymes is used to digest gelatine in the process of recovering silver from the photographic film?

    (a) Amylase

    (b) Pepsin

    (c) Lipase

    (d) None of these

    Option b – Pepsin

    Which of the following vegetable oils does not contain essential fatty acids ?

    (a) Sunflower oil

    (b) Mustard oil

    (c) Coconut oil

    (d) Groundnut oil

    Option a – Sunflower oil

    Which of the following has magnesium?

    (a) Carbonic anhydrase

    (b) Vitamin B₁₂

    (c) Chlorophyll

    (d) Haemocyanine

    Option c – Chlorophyll

    Which one of the following statements is INCORRECT?

    (A) Pars distalis produces Somatotrophic hormone.

    (B) Pars intermedia secretes only one hormone.

    (C) Pars nervosa secretes two hormones.

    (D) Pars distalis does not secrete any hormone.

    Option d – Pars distalis does not secrete any hormone.

    ………. is a yellowish pigmented spot present at the posterior pole of the eye and has densely. packed cones.

    (A) Pupil

    (B) Macula lutea

    (C) Iris

    (D) Blindspot

    Option b – Macula lutea

    Progesterone is secreted by

    (A) the sac-like structure called alveoli

    (B) corpus luteum

    (C) Leydig cells

    (D) interstitial cells

    Option b – corpus luteum

    A single U-shaped bone present at the base of the buccal cavity and it is also included in the skull is

    (A) clavicle

    (B) acromion

    (C) malleus

    (D) hyoid

    Option d – hyoid

    Rods contain a purplish red protein ………. that contains a derivative of vitamin A.

    (A) rhodopsin

    (B) myoglobin

    (C) actin

    (D) chymotrypsin

    Option a – rhodopsin

    The hormone cholecystokinin acts on

    (A) gastric glands and atria of the heart

    (B) pancreas and gallbladder

    (C) urinary bladder and urethra

    (D) the prostate gland and Cowper’s gland

    Option b – pancreas and gallbladder

    The number of cervical vertebrae in almost all mammals is

    (A) 7

    (B) 12

    (C) 15

    (D) 20

    Option a – 7

    Which of the following statement is INCORRECT?

    (A) The cerebral aqueduct passes through the midbrain.

    (B) Corpora quadrigemina are the four round swellings present in the dorsal portion of the midbrain.

    (C) Meninges is the tract of nerve fibers that connect cerebral hemispheres.

    (D) The cerebral cortex contains association areas.

    Option c – Meninges is the tract of nerve fibers that connect cerebral hemispheres.

    The olfactory receptors detect

    (A) taste

    (B) smell

    (C) touch

    (D) pain

    Option b – smell

    Excess secretion of growth hormone in adults especially in middle age can result in

    (A) Acromegaly

    (B) Graves’ disease

    (C) Addison’s disease

    (D) Exophthalmic goiter

    Option a – Acromegaly

    …… joint occurs between the carpal bones of the wrist.

    (A) Pivot

    (B) Hinge

    (C) Gliding

    (D) Saddle

    Option c – Gliding

    Read the following statements and select the correct option. Statement I: Afferent neuron receives a stimulus from a sensory organ. Statement II: Efferent neuron is a motor neuron.

    (A) Statement I is correct while Statement II is incorrect.

    (B) Statement I is incorrect while Statement II is correct.

    (C) Both statements are correct.

    (D) Both statements are incorrect.

    Option c – Both statements are correct.

    The hormone responsible for maintaining the diurnal rhythms of our body is secreted by …….. gland.

    (A) adrenal

    (B) thyroid

    (C) pineal

    (D) thymus

    Option c – pineal

    Which of the following bone does NOT form a forelimb?

    (A) Humerus

    (B) Femur

    (C) Radius

    (D) Metacarpal

    Option b – Femur

    Which of the following group correctly includes motor nerves?

    (A) Olfactory, Maxillary, Hypoglossal

    (B) Vagus, Auditory, Abducens

    (C) Abducens, Trochlear, Occulomotor

    (D) Facial, Occulomotor, Vagus

    Option c – Abducens, Trochlear, Occulomotor

    Identify the INCORRECT statement.

    (A) Cortisol is a glucocorticoid that stimulates RBC production.

    (B) Adrenal cortex secretes the hormone aldosterone.

    (C) Epinephrine and norepinephrine are commonly called catecholamines.

    (D) Adrenal medulla secretes corticoids.

    Option d – Adrenal medulla secretes corticoids.

    Select the INCORRECT match.

    (A) Vertebrochondral ribs – 8th, 9th, and 10th pair

    (B) Floating ribs – 11th and 12th pair

    (C) True ribs – 1st to 7th pair

    (D) False ribs – 9th and 10th pair

    Option d – False ribs – 9th and 10th pair

    …….. regulate the diameter of pupuil

    (A) Anterior portion of the sclera

    (B) Muscle fibers of the iris

    (C) Ciliary body

    (D) Choroid

    Option b – Muscle fibers of the iris

    Which of the following is CORRECT regarding the hormone ANF?

    (A) It is secreted by the gastrointestinal tract.

    (B) It is secreted when blood pressure decreases.

    (C) It stimulates gastric secretion.

    (D) It is a peptide hormone.

    Option d – It is a peptide hormone.

    Which of the following statement is INCORRECT?

    (A) Clavicle is commonly called the collar bone.

    (B) The two halves of the pelvic girdle meet ventrally to form the pubic symphysis.

    (C) Scapula is situated in the dorsal part of the thorax.

    (D) Limb bones and girdles form the axial skeleton.

    Option d – Limb bones and girdles form the axial skeleton.

    Identify the type of movement exhibited by ova and fertilized egg in the ampulla of the fallopian tube.

    (A) Ciliary movement

    (B) Amoeboid movement

    (C) Muscular movement

    (D) Flagellar movement

    Option a – Ciliary movement

    The vestibular apparatus of the inner ear is composed of semi-circular canals and

    (A) otolith

    (B) malleus

    (C) Eustachian tube

    (D) labyrinth

    Option a – otolith

    Hypothalamus secretes which of the following hormone?

    (A) Oxytocin and prolactin

    (B) Melatonin and ADH

    (C) Oxytocin and vasopressin

    (D) TSH and Prolactin

    Option c – Oxytocin and vasopressin

    Which of the following is CORRECT regarding osteoporosis?

    (A) It is caused due to increased levels of oestrogen.

    (B) It is characterized by decreased bone mass.

    (C) It commonly occurs in children of 2 – 5 years of age.

    (D) It is a condition of progressive degeneration of skeletal muscles.

    Option b – It is characterized by decreased bone mass.

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