{"id":49569,"date":"2023-07-20T19:22:26","date_gmt":"2023-07-20T13:52:26","guid":{"rendered":"https:\/\/apboardsolutions.com\/?p=49569"},"modified":"2023-07-21T13:43:05","modified_gmt":"2023-07-21T08:13:05","slug":"ap-inter-1st-year-botany-important-questions-chapter-10","status":"publish","type":"post","link":"https:\/\/apboardsolutions.com\/ap-inter-1st-year-botany-important-questions-chapter-10\/","title":{"rendered":"AP Inter 1st Year Botany Important Questions Chapter 10 Biomolecules"},"content":{"rendered":"
Students get through AP Inter 1st Year Botany Important Questions<\/a> 10th Lesson Biomolecules which are most likely to be asked in the exam.<\/p>\n Very Short Answer Questions<\/span><\/p>\n Question 1. Question 2. <\/p>\n Question 3. Question 4. Question 5. Question 6. Question 7. Question 8. 2) Secondary metabolites: The metabolic products which do not have identifiable functions in the host organism are called secondary metabolites. <\/p>\n Short Answer Questions<\/span><\/p>\n Question 1. Question 2. Question 3. Secondary Structure:<\/p>\n Tertiary Structure:<\/p>\n <\/p>\n Primary structure of a portion of a hypothetical protein.\u00a0 N and C refer to the two termini of every protein. <\/p>\n Question 4. Question 5. Question 6. Question 7. <\/p>\n Long Answer Questions<\/span><\/p>\n Question 1. Alkaloids:<\/p>\n Flavinoids: Rubber:<\/p>\n Essential oils:<\/p>\n Antibiotics:<\/p>\n Spices:<\/p>\n Question 2. 2) Analyse inorganic compounds:<\/p>\n 3) Elemental analysis:<\/p>\n <\/p>\n Question 3. Question 4. Nucleoside<\/p>\n Question 5. <\/p>\n Exercise<\/span><\/p>\n Question 1. Question 2. 2) Peptide bond: In a polypeptide or a protein, aminoacids are linked by a peptide bond which is formed when the carboxyl (-COOH) group of one amino acid reacts with the amino (\u2014NH2) group of next amino acid with the elimination of water. 3) Phospho-diester bond: In a nucleic acid a phosphate moiety, links the 3′-carbon of one sugar of one nucleotide to the 5′-carbon of a sugar of the succeeding nucleotide. The bond between phosphate and hydroxyl group of sugar is an ester bond,. As there is one such ester bond on either side of phosphate it is called phosphodiester bond. Question 3. Question 4. Question 5. Question 6. Question 7. Question 8. <\/p>\n Question 9. Question 10. Question 11. Question 12. Question 13. Question 14. Question 15. Multiple Choice Questions<\/span><\/p>\n Question 1. Question 2. Question 3. Question 4. Question 5. Question 6. <\/p>\n Question 7. Question 8. Question 9. Question 10. Question 11. Question 12. Question 13. Question 14. Question 15. Question 16. Question 17. Question 18. Question 19. <\/p>\n Question 20. Question 21. Question 22. Question 23. Question 24. Question 25. Question 26. Question 27. Question 28. Question 29. <\/p>\n Question 30. Question 31. Question 32. Question 33. Question 34. Question 35. Question 36. Question 37. Question 38. Question 39. Question 40. <\/p>\n Question 41. Question 42. Question 43. Question 44. Question 45. Question 46. Question 47. Question 48. <\/p>\n Question 49. Students get through AP Inter 1st Year Botany Important Questions 10th Lesson Biomolecules which are most likely to be asked in the exam. AP Inter 1st Year Botany Important Questions 10th Lesson Biomolecules Very Short Answer Questions Question 1. Medicines are either man made (i.e., synthetic ) or obtained from living organisms like plants, bacteria, … Read more<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[13],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/posts\/49569"}],"collection":[{"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/comments?post=49569"}],"version-history":[{"count":4,"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/posts\/49569\/revisions"}],"predecessor-version":[{"id":49602,"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/posts\/49569\/revisions\/49602"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/media?parent=49569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/categories?post=49569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.com\/wp-json\/wp\/v2\/tags?post=49569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}AP Inter 1st Year Botany Important Questions 10th Lesson Biomolecules<\/h2>\n
\nMedicines are either man made (i.e., synthetic ) or obtained from living organisms like plants, bacteria, animals etc. and hence the latter are called natural products. Sometimes natural products are chemically altered by man to reduce toxicity or side effects. Write against each of the following whether they were initially obtained as a natural product or as a synthetic chemical. [AP M-20]
\na) Penicillin
\nb) Sulfonamide
\nc) Vitamin C
\nd) Growth Hormone
\nAnswer:
\na) Penicillin \u2192 Natural product
\nb) Sulfonamide \u2192 Synthetic chemical
\nc) Vitamin C \u2192 Natural product
\nd) Growth Hormone \u2192 Natural product<\/p>\n
\nSelect an appropriate chemical bond among ester bond,glycosidic bond, peptide bond and hydrogen bond and write against each of the following.
\na) Polysaccharide 5
\nb) Protein
\nc) Fat
\nd) Water
\nAnswer:
\na) Polysaccharide \u2192 Glycosidic bond
\nb) Protein \u2192 Peptide bond
\nc) Fat \u2192 Ester bond
\nd) Water \u2192 Hydrogen bond [TS May-17]<\/p>\n
\nGive one example for each of amino acids, sugars, nucleotides and fatty acids.
\nAnswer:
\na) Amino acids Ex: Glycine [IPE Mar-13]
\nb) Sugars Ex: Glucose [AP May-19] [TS M-16]
\nc) Nucleotide Ex: Adenylic acid
\nd) Fatty acids Ex: Lecithin, Glycerol<\/p>\n
\nExplain the Zwitterionic form of an amino acid. [IPE Mar-14]
\nAnswer:<\/p>\n\n
\nWhat constituents of DNA are linked by glycosidic bond? [AP M-15,17,19]
\nAnswer:<\/p>\n\n
\nGlycine and Alanine are different with respect to one substituent on the a-carbon.
\nWhat are the other common substituent groups? [TS M-19]
\nAnswer:
\nCommon substitutent groups on the a-carbon of Glycine and Alanine are:
\nHydrogen, Carboxyl group and Amino group.<\/p>\n
\nStarch, Cellulose, Glycogen, Chitin are polysaccharides found among the following. Choose the one appropriate and write against each. [AP M-17,22] [TS M-15,20]
\na) Cotton fibre
\nb) Exo skeleton of cockroach
\nc) Liver
\nd) Peeled Potato
\nAnswer:
\na) Cotton fibre – Cellulose
\nb) Exo skeleton of cockroach – Chitin
\nc) Liver – Glycogen
\nd) Peeled potato – Starch.<\/p>\n
\nWhat are primary and secondary metabolites? Give examples.
\nAnswer:
\n1) Primary metabolites: The metabolites which have identifiable functions and play known roles in normal physiological processes are called Primary metabolites.
\nEx: Amino acids, Sugar.<\/p>\n
\nEx: Rubber, drugs, spices, scents etc.<\/p>\n
\nExplain briefly the metabolic basis for living?
\nAnswer:<\/p>\n\n
\nThe complex structure is broken down into simpler molecules with release of energy.
\nEx: Respiration<\/li>\n
\nComplex molecules are produced from simpler molecules with input of energy.
\nEx: Aminoacids become proteins.<\/li>\n<\/ol>\n
\nIs rubber a primary metabolite or a secondary metabolite. Write four sentences about rubber.
\nAnswer:<\/p>\n\n
\nSchematically represent primary, secondary and tertiary structures of a hypothetical polymer using protein, as an example. [AP M-22]
\nAnswer:
\nPrimary Structure:<\/p>\n\n
\n
\n
\na- A secondary structure and
\nb. A tertiary structure of proteins<\/p>\n
\nNucleic acid exhibits secondary structure, justify with example. [TS M-15]
\nAnswer:<\/p>\n\n
\n<\/li>\n<\/ol>\n
\nComment on the statement, ‘living state is a non-equilibrium steady state, to be able to perform work’.
\nAnswer:<\/p>\n\n
\nDynamic state of body constituents is a more realistic concept than the fixed concentra\u00actions of body constituents, at any point of time. Elaborate.
\nAnswer:<\/p>\n\n
\nWrite a brief account on polysaccharides.
\nAnswer:<\/p>\n\n
\nWhat are secondary metabolites? Enlist them indicating their usefulness to man.
\nAnswer:
\nMetabolic products that do not have in the host organism are called secondary metabolites. They are Alkaloids, Flavinoids, Rubber, Essnetial oils, Antibiotics, Coloured pigments, Scents, Gums and Spices.<\/p>\n\n
\nThese are widely distributed group of polyphenolic compounds with health related properties which include anticancer, antiviral, anti inflamatory activities, effects on capillary fregility and can ability to inhibit human platelet aggregation.<\/p>\n\n
\n
\n
\n
\nWhat are the processes used to analyse elemental composition, organic constituents and inorganic constituents of living tissue? What are the inferences on the most abundant constituents of living tissue? Support the inferences with appropriate data.
\nAnswer:
\nAnalysing elemental composition, organic constituents and inorganic constituents of living tissues is done by chemical analysis.
\nI) Analyse Organic Compounds:<\/p>\n\n
\nand probable structure of the compound.<\/li>\n\n
\n
\nNucleic acids exhibit secondary structure. Describe through Watson-Crick model.
\nAnswer:<\/p>\n\n
\n
\nWatson and Cricks’ double helix model of DNA
\nP= Phosphate, S= Sugar, A=Adenine, T= Thymine, G= Guanine, C= Cytosine<\/li>\n<\/ol>\n
\nWhat is the difference between a nucleotide and nucleoside? Give two examples of each with their structure.
\nNucleotide<\/p>\n\n
\n<\/li>\n<\/ol>\n\n
\n<\/li>\n<\/ol>\n
\nDescribe various forms of lipid using a few examples.
\nAnswer:<\/p>\n\n
\n<\/li>\n
\n<\/li>\n
\nWhat are macromolecules? Give examples.
\nAnswer:
\nLarge size biomolecules having high molecular weight of above 800 dalton are called macro
\nmolecules. They have lower solubility and complex molecular structure and occur in colloidal state. They are formed by the polymerisation of large number of micro molecules. They belong to four types of organic compounds, i.e., proteins, nucleic acids, polysaccharides and lipids.<\/p>\n
\nIllustrate a glycosidic, peptide and a phospho-d tester bond.
\nAnswer:
\n1) Glycosidic bond: In a polysaccharide the individual monosaccharides are linked by a glycosidic bond. This bond is formed by dehydration. This bond is formed between two carbon atoms of two adjacent monosaccharides.
\n<\/p>\n
\n<\/p>\n
\n<\/p>\n
\nWhat is meant by tertiary structure of proteins?
\nAnswer:<\/p>\n\n
\nFind and write down structures of 10 interesting small molecular weight biomolecules.
\nFind if there is anTIndustry which manufactures the compounds by isolation. Find out who are the buyers.
\nAnswer:
\n
\n<\/p>\n
\nProteins have primary structure. If you are given a method to know which amino acid is at either of the two termini (ends) of a protein, can you connect this information to purity or homogeneity of a protein?
\nAnswer:
\nThe number of amino acids, types of aminoacids and the sequence of their arrangement in the polypeptide chain determines the structure of a protein. In a linear structure of protein chain, the left end of line represents the first and the right end represents the last amino acid. The number of amino acids in between the two ends determine the purity or homogeneity of proteins.<\/p>\n
\nFind out and make a list of proteins used as therapeutic agents. Find other applications of proteins (e.g., Cosmetics etc.,)
\nAnswer:<\/p>\n\n
\nExplain the composition of triglyceride.
\nAnswer:
\nFatty acids are found esterified with glycerol. They can be monoglycerids, diglycerids and triglyeerids. In a triglyceride single molecule of glycerol and 3 fatty acids are present. In a glycerol 3 carbon atoms are present along with 30n groups. Fatty acids consists of long chain hydrocarbon with a carboxyl group at the end. Both of them form ester bond. This bond is saturated when simple bonded carbons are present and unsaturated when double bonded carbon atoms are present.
\n<\/p>\n
\nCan you describe what happens when milk is converted into curd or yoghurt, based on your understanding of proteins.
\nAnswer:
\nDenaturation of protein occur during the conversion of milk into curd. During this process the configuration of protein is lost. In denaturation process, secondary, tertiary structure leads to the conversion of globular proteins into fibrous protein. This involves a change in physical, chemical and biological proportion of protein molecules.<\/p>\n
\nCan you attempt building models of biomolecules using commercially available atomic models (Ball and Stick models).
\nAnswer:
\nYes, models of bio molecules can be prepared. Atomic models are available in the market. Bell and stick models and space filling models are 3D models. They serve to display the structure of chemical products (or) bio molecular. In the ball stick model, the centres of atoms are connected by straight lines which represent covalent bond. Double and triple bonds are represented by spinner. The bond angles and bond lengths reflects actual relationships.<\/p>\n
\nAttempt titrating an amino acid against a weak base and discover the number of dissociating (ionizable) functional groups in the amino acid.
\nAnswer:
\nBy the titration curves one can understand the existence of different ionic forms of amino acids.
\nThe number of dissociating functional groups is one in case of neutral and basic amino acids and two in case of acidic amino acids.<\/p>\n
\nDraw the structure of the amino acid, alanine.
\nAnswer:
\n<\/p>\n
\nWhat are gums made of? Is Fevicol different?
\nAnswer:<\/p>\n\n
\nFind out a qualitative test for proteins, fats and oils, amino acids and test any fruit juice, saliva, sweat and urine for them.
\nAnswer:<\/p>\n\n
\nA violet colour indicates the presence of protein.<\/li>\n
\nFind out how much cellulose is made by all the plants in the biosphere and compare it with how much of paper is manufactured by man and hence what is the consumption of plant material by man annually. What a loss of vegetation?
\nAnswer:<\/p>\n\n
\nAll life forms exhibit ‘unity in diversity’-Give reasons.
\nAnswer:<\/p>\n\n
\nATP
\n1) nucleotide
\n2) nucleoside
\n3) nucleic acid
\n4) vitamin
\nAnswer:
\n1) nucleotide<\/p>\n
\nBiomolecules are
\n1) Inorganic compounds
\n2) Organic compounds
\n3) carbon compounds obtained from living tissue
\n4) only DNA and RNA
\nAnswer:
\n3) carbon compounds obtained from living tissue<\/p>\n
\nTrihydroxy propane is
\n1) Palmitic acid
\n2) Arachidonic acid
\n3) Glycerol
\n4) Glycine
\nAnswer:
\n3) Glycerol<\/p>\n
\nPrimary structure of protein is formed by
\n1. Phospodiester bonds
\n2. Peptide bonds
\n3. Glycosidic bonds
\n4. Hydrogen bonds
\nAnswer:
\n2. Peptide bonds<\/p>\n
\nSecondary structure of protein is
\n1. \u03b1-helix
\n2. \u03b2-helix
\n3. \u03b3-helix
\n4. Triple helix
\nAnswer:
\n1. \u03b1-helix<\/p>\n
\nMost abundant protein found in the human body is
\n1. Haemoglobin
\n2. Immunoglobin
\n3. Keratin
\n4. Collagen
\nAnswer:
\n4. Collagen<\/p>\n
\nThe polymers of amino acids are
\n1. Nucleic acids
\n2. Proteins
\n3. Lipids
\n4. Polysaccharides
\nAnswer:
\n2. Proteins<\/p>\n
\nThe polymers of proteins are
\n1. Nitrogen bases
\n2. Nucleotides
\n3. Aminoacids
\n4. Heterocyclic organic acids
\nAnswer:
\n3. Aminoacids<\/p>\n
\nProtein that acts as hormone is
\n1. Glut-4
\n2. Insulin
\n3. RUBrsco
\n4. Trypsin
\nAnswer:
\n2. Insulin<\/p>\n
\nWhich of the following is normally not a function of proteins
\n1. Structural integrity of the cell
\n2. Regulation of metabolism
\n3. Defense mechanism
\n4. Hydrolysis of energy provision
\nAnswer:
\n4. Hydrolysis of energy provision<\/p>\n
\nThe simplest and least carbon containing amino acid is
\n1. Glycine
\n2. Serine
\n3. Lysine
\n4. Alanine
\nAnswer:
\n1. Glycine<\/p>\n
\nThe molecular formula of Glycine is
\n1. C2<\/sub>H5<\/sub>O2<\/sub>N
\n2. C3<\/sub>H7<\/sub>O2<\/sub>N
\n3. C3<\/sub>H7<\/sub>O2<\/sub>N
\n4. C5<\/sub>H10<\/sub>O5<\/sub>N
\nAnswer:
\n1. C2<\/sub>H5<\/sub>O2<\/sub>N<\/p>\n
\nIdentify the mismatch from the following
\n1. Chitin-Heteropolymer
\n2. Cellulose-Does not hold I2
\n3. Inulin-Polymer of glucose
\n4. Insulin-polymer of amino acids
\nAnswer:
\n3. Inulin-Polymer of glucose<\/p>\n
\nWhich of the following biomolecuies are not heteropoiymers?
\n1. Protein
\n2. Chitin
\n3. Cellulose
\n4. Nucleic acid
\nAnswer:
\n3. Cellulose<\/p>\n
\nProteins that have more than one polypeptide chains are said to be in
\n1. Secondary structure
\n2. Primary structure
\n3. Tertiary structure
\n4. Quatemary structure
\nAnswer:
\n4. Quatemary structure<\/p>\n
\nFatty acids without double bonds between carbon atoms are called
\n1. Saturated fatty acids
\n2. Unsaturated fatty acids
\n3. Adenylic acid
\n4. Glycerides
\nAnswer:
\n1. Saturated fatty acids<\/p>\n
\nLipids which are in liquid state at room temperature are called
\n1. Oils
\n2. Fats
\n3. Esterified solution
\n4. Glycolipids
\nAnswer:
\n1. Oils<\/p>\n
\nThe building block of nucleic acids are
\n1. Nucleosides
\n2. Nucleotides
\n3. Nitrogen bases
\n4. Monosaccharide sugar and phosphate
\nAnswer:
\n2. Nucleotides<\/p>\n
\nThe types of monosaccharide sugars found in nucleic acids are
\n1. 3
\n2. 4
\n3. 2
\n4. 5
\nAnswer:
\n3. 2<\/p>\n
\nAbrin and Ricins are
\n1 .Toxic secondary metabolites
\n2. Lectin type secondary metabolites
\n3. Terpenoid secondary metabolites
\n4. Alkaloid secondary metabolites
\nAnswer:
\n1 .Toxic secondary metabolites<\/p>\n
\nThe secondary metabolites used as drugs are
\n1. Abrin, Ricin
\n2. Rubber, gums, cellulose
\n3. Morphine, codeine
\n4. Vinblastin, curcumin
\nAnswer:
\n4. Vinblastin, curcumin<\/p>\n
\nThe monomers repeating V number of times are called
\n1. Homopolymers
\n2. Heteropolymers
\n3. Low molecular weight heteromers
\n4. High molecular weight heteromers
\nAnswer:
\n1. Homopolymers<\/p>\n
\nThe polymer units in nucleic acids are
\n1. Nucleosides
\n2. Nucleotides
\n3. Nitrogen bases
\n4. Monosaccharides
\nAnswer:
\n2. Nucleotides<\/p>\n
\nThe length of pitch of each coil of DNA is
\n1) 3.4 A
\n2) 0.34 A
\n3) 34 A
\n4) 2.0nm
\nAnswer:
\n3) 34 A<\/p>\n
\nThe most important form of energy currency in a living system is
\n1. GTP
\n2. ATP
\n3. TPP
\n4.UTP
\nAnswer:
\n2. ATP<\/p>\n
\nAmines are formed by
\n1. Removal of amino group in a nucleotide base
\n2. Removal of carboxyl group form amino acids
\n3. Removal of CO2 from amino acids
\n4. Hydrolysis of glycosidic bond in a disaccharide
\nAnswer:
\n3. Removal of CO2 from amino acids<\/p>\n
\nWhich of the following is a reducing sugar?
\n1. Gluconic acid
\n2. Galactose
\n3. 3methylgalactoside
\n4. Sucrose
\nAnswer:
\n2. Galactose<\/p>\n
\nThe four elements that make up 99% of all elements found in a living system are
\n1) C, H,Q and P
\n2) C, H, O and S
\n3) C, H, O and N
\n4) C, N, O and P
\nAnswer:
\n3) C, H, O and N<\/p>\n
\nThe percentage of abundant chemical present in the living organism is
\n1) 95-9.8%
\n2) 70-90%
\n3) 80 – 85 %
\n4) 60-90%
\nAnswer:
\n2) 70-90%<\/p>\n
\nWhich of the following is incorrect.
\n1) Glycerol is trihydroxy propane
\n2) Palmitic acid has 16 carbons including carboxyl carbon
\n3) Arachidonic acid has 20 carbons including the carboxyl carbon
\n4) Lipids are generally water soluble.
\nAnswer:
\n4) Lipids are generally water soluble.<\/p>\n
\nThe aromatic aminoacid, Acidic aminoacid and aminoacid with methyl as R group respectively are
\n1) Alanine, Glutamic acid Tyrosine
\n2) Tryptophan, Glutamic acid and Alanine
\n3) Phenyl alanine, Alanine and valine
\n4) Glycine, lysine and Alanine
\nAnswer:
\n2) Tryptophan, Glutamic acid and Alanine<\/p>\n
\nWhich one of the following fats contains unsaturated fatty acids?
\n1) Ghee
\n2) Curd
\n3) Gingelyoil
\n4) Fish oil
\nAnswer:
\n3) Gingelyoil<\/p>\n
\nMost abundant enzyme of biosphere is located in
\n1) Starch factory
\n2) Protein factory
\n3) ATP factory
\n4) Ribosome factory
\nAnswer:
\n1) Starch factory<\/p>\n
\nAn alkaloid is
\n1) Collagen
\n2) Algin
\n3) Carragen
\n4) Codeine
\nAnswer:
\n4) Codeine<\/p>\n
\nA segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is
\n1) 480
\n2) 240
\n3) 120
\n4) 60
\nAnswer:
\n1) 480<\/p>\n
\nThe Compounds found in the acid soluble pool of molecular weight ranging from
\n1) 180 to 800 (Da)
\n2) 800 to 180(Da)
\n3) 18 to 800 (Da)
\n4) more than 800 (Da)
\nAnswer:
\n3) 18 to 800 (Da)<\/p>\n
\nIdentify a set in the given list in which all are polymeric secondary metabolites
\n1) Protein, Nucleic acid, Rubber
\n2) Rubber, Lipid, Cellulose
\n3) Cellulose, Gum, Rubber
\n4) Nucleic acid, Protein, Polysaccharide
\nAnswer:
\n3) Cellulose, Gum, Rubber<\/p>\n
\nMark the true matching
\n1) Trichloro acetic acid – Amino acid
\n2) Glutamic acid – Fatty acid
\n3) Arachidonic acid – Resin
\n4) Uredylic acid – Nucleotide
\nAnswer:
\n4) Uredylic acid – Nucleotide<\/p>\n
\n………… is not an enzyme
\n1) RUBISCO
\n2) Insulin
\n3) Trypsin
\n4) Pepsin
\nAnswer:
\n2) Insulin<\/p>\n
\nNon polymeric substances present in retentate
\n1) Proteins
\n2) Nucleic acids
\n3) Lipids
\n4) All the above
\nAnswer:
\n3) Lipids<\/p>\n
\nMost complex lipids are found in
\n1) Muscles
\n2) Neural tissues
\n3) Adipose tissue
\n4) Membranes
\nAnswer:
\n2) Neural tissues<\/p>\n
\nAn essential oil is
\n1) Lemon grass oil
\n2) Gingelly oil
\n3) Turpentine oil
\n4) Palm oil
\nAnswer:
\n1) Lemon grass oil<\/p>\n
\nSelect the correct statement
\n1) All molecules in organisms are biomolecules
\n2) All biomolecules are heteropolymers
\n3) All biomolecules are hemopolymers
\n4) Organelles are present in retentate
\nAnswer:
\n4) Organelles are present in retentate<\/p>\n
\nWhich are united by phosphodiester bonds?
\n1) Nitrogen bases of RNA
\n2) Nucleotides of DNA
\n3) Monosaccharides of glycogen
\n4) Fatty acids and glycerol
\nAnswer:
\n2) Nucleotides of DNA<\/p>\n
\nIn metabolic pathways
\n1) Only complex structures are formed
\n2) Metabolites are converted into each other through a series of linked reactions
\n3) Only simple structures are formed
\n4) The biochemical reactions are catalyzed by inorganic catalyst
\nAnswer:
\n2) Metabolites are converted into each other through a series of linked reactions<\/p>\n
\nRead the following statements and find out the incorrect statement
\n1) Oils have lower melting point (e.g. gingely oil) and hence remain as oil in winters
\n2) Adenosine, guanosine, cytosine, uridine and thymidine are nucleosides
\n3) Adenylic acid, thymidylic acid, guanylic acid, uridylic acid and cytidylic acid are nucleotides
\n4) Nucleic acids like DNA and RNA consists of nucleosides only
\nAnswer:
\n4) Nucleic acids like DNA and RNA consists of nucleosides only<\/p>\n
\nAromatic amino acids are
\na) Glycine
\nb) Tyrosine
\nc) Tryptophan
\nd) Phenyl alanine
\n1) a & b only
\n2) c & d only
\n3) b & c only
\n4) b, c & d
\nAnswer:
\n4) b, c & d<\/p>\n
\nLecithin is
\na) Phospholipid
\nc) The component of cell membrane
\nb) Phosphorylated organic compound
\nd) Polysaccharide
\n1) a and b only
\n2) b and c only
\n3) a, b and c only
\n4) All of the above
\nAnswer:
\n3) a, b and c only<\/p>\n
\nAssertion (A): The amino acids which possess both +ve and -ve charges to their R groups are called Zwitter ionic forms.
\nReason (R): The particular property of a particular amino acid depends on the ionizable nature of amino group and carboxyl group.
\n1) Both A & R are true & R is the correct explanation of A
\n2) Both A & R are true & R is not the correct explanation of A
\n3) A is true but R is false
\n4) A is false but R is true
\nAnswer:
\n1) Both A & R are true & R is the correct explanation of A<\/p>\n","protected":false},"excerpt":{"rendered":"