MSCQ-Preparation test for MDCAT-2022-Paper Biology
BIOLOGY
Q .1 Q: 1 It is not a difference of plant cell with animal cell:
A) Plant cell has large vacuole while animal cell has small vacuoles
B) Plant cells contain glyoxysomes while absent in animal cells
C) Plant cell offers more barriers to movement of substances than animal cell
D) Plant cell forms spindle and asters while animal cell forms only spindles
Q .2 This is not always true regarding cytoplasm of bacterial cell:
A) Its peripheral parts are gel like C) It contains single circular DNA
B) It lacks membranous organelles D) It does not show cyclosis
Q .3 Cell is considered as a unit of life in:
A) All prokaryotes C) All living organisms
B) All eukaryotes D) All bacteria
Q .4 All of the following are commonly present in both plant and animal cells except:
A) Mitochondria C) Golgi bodies
B) Centrioles D) Nucleus
Q .5 Centrioles are never found in:
A) Animals C) Fungi
B) Paramecium D) Protists
Q .6 The outer convex surface of Golgi apparatus is formed by the budding of:
A) Endoplasmic reticulum C) Smooth endoplasmic reticulum
B) Rough endoplasmic reticulum D) Lysosomes
Q .7 The function of nucleolus is to make:
A) rDNA C) Ribosomes
B) RNA D) Chromosomes
Q .8 All of these are macromolecules except:
A) DNA C) Hemoglobin
B) Ribonucleic acid D) ATP
Q .9 All can be explained on the basis of cell theory except:
A) HIV C) Nostoc
B) Yeast D) Neuron
Q .10 Cytosol is a site of many metabolic processes like:
A) Calvin cycle C) Glycolysis
B) Krebs cycle D) ETC
Q .11 Secretory vesicles arise from_______ of Golgi apparatus:
A) Maturing face C) Convex face
B) Forming face D) Circular face
Q .12 Technically, autophagosomes are also known as:
A) Primary lysosomes C) Secondary lysosomes
B) Tertiary lysosomes D) Complex lysosomes
Q .13 An animal cell can have all organelles except:
A) Glyoxisomes C) Peroxisomes
B) Centrioles D) Vacuoles
Q .14 In unit membrane model, the region of lipid bilayer attached to globular proteins is:
A) Hydrophobic C) Hydrophilic
B) Non-polar D) Hyper phobic
Q .15 All of the following can easily pass through cell membrane except:
A) H+ C) O2
B) H2O D) CO2
Q .16 Which of the following function is not performed by cell membrane?
A) It helps in nervous co-ordination C) It prevents cell from osmotic lysis
B) It helps in chemical co-ordination D) Phagocytosis
Q .17 It is virtually present in all cells:
A) Nucleus C) Ribosomes
B) Cell wall D) Mitochondria
Q .18 All of the following processes takes place in mitochondria except:
A) Anaerobic respiration C) Electron transport chain
B) Aerobic respiration D) Fatty acid metabolism
Q .19 It is present in animal cell but absent in plant cell:
A) Cytoskeleton C) Lysosomes
B) Vacuole D) Nucleus
Q .20 Which of the following is absent in prokaryotic cell membrane?
A) Carbohydrates C) Proteins
B) Lipids D) Sterols
Q .21 The ring form of fructose is called:
A) Fructopyranose C) Fructofuranose
B) Fructocellulose D) Ribofuranose
Q .22 Histone proteins are positively charged due to:
A) Acidic amino acids C) Neutral amino acids
B) Basic amino acids D) Amphoteric amino acids
Q .23 Fatty acids are present in all of the following except:
A) Acylglycerols C) Phospholipids
B) Waxes D) Terpenoids
Q .24 Which of the following is a phospholipid?
A) Lecithin C) Cholesterol
B) Sterol D) Steroid
Q .25 It is responsible for maintaining primary structure of DNA:
A) Ionic bonds C) Hydrogen bonds
B) Phosphodiester bonds D) Hyperphobic interaction
Q .26 Most of the cellular secretions are:
A) Phospholipids C) Sphingolipids
B) Glycoproteins D) Lipoproteins
Q .27 These compounds have lower proportion of oxygen:
A) Lipids C) Carbohydrates
B) Proteins D) Enzymes
Q .28 Most common stereoisomer of glucose found in nature is:
A) L-Glucose C) D-Glucose
B) Fructose D) Alpha glucose
Q .29 Keratin is a protein abundantly found in:
A) Muscles C) Hairs
B) Ligaments D) Blood
Q .30 Which one is a product of conjugation in Golgi complex?
A) Glycolipids C) Sphingolipids
B) Phospholipids D) Acylglycerol
Q .31 In Insulin molecule, two chains are held together by:
A) Sulphur linkage C) Hydrogen bond
B) Disulphide bridge D) Sulphide bridge
Q .32 Which of the following chemical component has the greatest contribution in a mammalian cell weight?
A) Protein C) Carbohydrate
B) Lipid D) Water
Q .33 Which of the following bonds provides stability to complex carbohydrate molecules?
A) C-C C) C-O
B) C-H D) C-N
Q .34 Lactose is a disaccharide consisting of:
A) Glucose and glucose C) Glucose and galactose
B) Glucose and maltose D) Fructose and maltose
Q .35 In sucrose the linkage is:
A) 1-4 glycosidic C) 2-4 glycosidic
B) 1-2 glycosidic D) 1-6 glycosidic
Q .36 Which of the following is an aldo-triose?
A) Dihydroxyacetone C) Ribulose
B) Glyceraldehyde D) Erythrose
Q .37 Which of the following compound further increases hydrophobic character of plasma membrane:
A) Lecithin C) Steroid
B) Cholesterol D) Rubber
Q .38 Which of the following correctly describes the composition of ATP?
A) 1 ribose, 1 adenine, 3 phosphate C) 1 ribose, 3 adenine, 3 phosphate
B) 1 ribose, 1 adenosine, 3 phosphate D) 1 ribose, 3 adenosine, 3 phosphate
Q .39 Which of the following terms include all others?
A) Nucleotide C) Purines
B) Nucleic acid D) Nucleoside
Q .40 It is incorrect about fructose:
A) It is a keto-sugar C) It is a monosaccharide
B) It is hexose sugar D) It has glycosidic bond
Q .41 Exclusive character of fungi is:
A) Nuclear mitosis C) Absorptive mode of nutrition
B) Cell wall D) Spore formation
Q .42 Which of the following infections caused by fungi is superficial?
A) Ringworm C) Histoplasmosis
B) Aspergillosis D) Ergotism
Q .43 Bacterial spores are most likely to be formed in:
A) Lag phase C) Log phase
B) Stationary phase D) Decline phase
Q .44 This fungal product is used to prevent tissue rejection:
A) Penicillin C) Lovastatin
B) Cyclosporine D) Ergotine
Q .45 An enzyme without its co-factor is called :
A) Holoenzyme C) Apoenzyme
B) Co-enzyme D) Activator
Q .46 Malonic acid is the competitive inhibitor of :
A) Fumaric acid C) Succinic acid
B) Succinic acid dehydrogenase D) Malonic acid
Q .47 Virus that attacks on spinal cord in humans is:
A) Pox virus C) Herpes virus
B) Influenza virus D) Polio virus
Q .48 Least amount of peptidoglycan is present in ____________ but absent in__________
A) Gram positive bacteria, Archaeobacteria C) Archaeobacteria, Mycoplasma
B) Gram negative bacteria, Mycoplasma D) Mycoplasma, Archaeobacteria
Q .49 Vitamin K producing bacteria are present in:
A) Colon C) Appendix
B) Caecum D) Rectum
Q .50 Pick the wrong statement regarding co-factor:
A) Essentially required for enzyme functioning if present
B) Acts as enzyme between active site and substrate
C) May provide chemical energy for driving chemical reaction
D) Acts as bridge between enzyme and substrate
Q .51 Feedback inhibition of an enzyme is influenced by:
A) Enzyme C) Substrate
B) End-product D) External factors
Q .52 Most of the fungi are multicellular and are called:
A) Thallophytes C) Yeasts
B) Molds D) Halophytes
Q .53 Morchella esculenta is an example of:
A) Mushroom C) Morel
B) Truffle D) Lichen
Q .54 All of the following products are obtained through Aspergillus except:
A) Soya sauce C) Soya paste
B) Acetic acid D) Citric acid
Q .55 All of the followings match with each other except:
A) Anabaena and cyanobacteria C) Small pox and E. Jennar
B) Green sulphur bacteria and photosynthesis D) Techoic acid and gram negative bacteria
Q .56 It is an example of RNA non-enveloped virus:
A) HCV C) Influenza virus
B) HAV D) HIV
Q .57 Main chemical difference between bacterial and eukaryotic cell membrane is that:
A) Bacterial membrane is thick C) Bacterial membrane is without sterols
B) Bacterial membrane is tough D) Bacterial membrane is made up of peptidoglycan
Q .58 Eight cocci bacteria in a single plane will form:
A) Streptococci C) Sarcina
B) Tetrad D) Staphylococci
Q .59 A procedure to eliminate possibility of infection:
A) Antiseptics C) Disinfectant
B) Antibiotics D) Antisepsis
Q .60 Ergot fungi is source of a medicine that is used to treat:
A) Cancer C) Gangrene
B) Hypercholesterolemia D) MigraineQ .61 Quick source of Glucose is:
A) Potato C) Dates
B) Figs D) Figs and dates
Q .62 The nucleolus is composed of
A) Ribonucleoproteins C) glycolipids
B) phospholipids D) lipoproteins
Q .63 One of the following structures is always in a pair:
A) Ribosomes C) Centromeres
B) Centrioles D) Chromosomes
Q .64 The process by which a cell secretes macromolecules by fusing a transport vesicle to the plasma membrane is called:
A) Pinocytosis C) Exocytosis
B) Phagocytosis D) Endocytosis
Q .65 At pH-5.00, the salivary amylase become:
A) Active C) Ionize
B) Inactive D) Denatured
Q .66 On increasing temperature, from 200C to 300C, the rate of enzymatic reaction:
A) Constant C) Rate doubles
B) Decreased D) Unchanged
Q .67 Mitochondria are not found in:
A) Ulothrix C) Hyphomicrobium
B) Rhizopus D) Green algae
Q .68 All the biological membranes have fluid nature because of the continuous motion of:
A) Membrane proteins C) Phospholipids
B) Glycoproteins D) Membrane proteins & phospholipids
Q .69 Kreb’s cycle takes place in____________ of Mitochondria :
A) Stroma C) Inner membrane
B) Matrix D) Outer membrane
Q .70 Mitochondria release energy in the form of:
A) hydrogen ions (H+) C) ATP
B) hydroxyl ions (OH-) D) ADP
Q .71 It is most abundant organic compound in Mammalian cell:
A) Water C) Lipid
B) Carbohydrate D) Protein
Q .72 These are non-reducing sugars:
A) Glucose C) Fructose
B) Starch D) Glucose and Fructose
Q .73 Some species of ________ are used for producing soya and soya sauce paste from soya beans.
A) Penicillium C) Yeast
B) Aspergillus D) Neurospora
Q .74 What is true about nucleus?
A) is the most prominent in the cell C) controls all activities of a cell
B) contains all DNA of a cell D) all of these
Q .75 Outer nuclear membrane is continuous with:
A) SER C) Cytoskeleton
B) RER D) Golgi apparotus
Q .76 Lipid synthesis occur in :
A) R.E.R C) Golgi bodies
B) S.E.R D) Centriole
Q .77 These are present in Brain:
A) Phospho lipid C) Waxes
B) Sphingolipids D) Glyco protein
Q .78 An organic co-factor loosely attached with protein part is called:
A) prosthetic group C) co-enzyme
B) apo enzyme D) activator
Q .79 Which is not a conjugated molecule?
A) Glycoprotein C) Glycolipid
B) Lipoprotein D) Polysaccharides
Q .80 The functional speficity of an enzyme is the result of its specific:
A) Chemistry C) Configuration
B) Concentration D) both chemistry and configuration
Q .81 Induced fit model was proposed by:
A) Emil Fischer C) Robert Brown
B) Koshland D) Robert Koch
Q .82 Optimum pH for pepsin is:
A) 5.50 C) 4.50
B) 2.00 D) 6.80
Q .83 Who used the term bacteriophage for the first time?
A) Twort C) Louis Pasteur
B) D’Herelle D) Charles Chamberland
Q .84 If inorganic co-factor is loosely bonded to enzyme it is called as:
A) Co-enzyme C) prosthetic group
B) activator D) apoenzyme
Q .85 According to Lock and Key model of Emil Fischer which acts as key?
A) Enzyme C) substrate
B) ES complex D) product
Q .86 Active site of succinic dehydrogenase is blocked by:
A) Succinic acid C) Malonic acid
B) Fumaric acid D) Malic acid
Q .87 Entire cell wall of a bacterium is a single huge molecule called:
A) Peptidoglycan C) Murein
B) Saccule D) Sacculus
Q .88 Peptidoglycan consists of
A) Polysaccharide only C) Both a & b
B) Amino acids only D) Lipids only
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