A fatty acid not synthesised in human body i
1.Cholesterol
2.Linoleic acid
3.Glycerol
4.None of the above
Posted Date:-2021-06-20 06:23:16
A nucleotide is ...
1.Sugar + Phosphate
2.Base + Sugar + Phosphate
3.base + Sugar - OH
4.(Base + Sugar+Phosphate)n
Posted Date:-2021-06-20 06:23:16
A storage protein is ...
1.Keratin
2.Collagen
3.Haemoglobin
4.Glutelin/Globulin
Posted Date:-2021-06-20 06:23:16
All enzymes are proteins". This statement is now modified because of exception to this
1.Arylsulphate
2.Ribozyme
3.Nitroreductase
4.Dehydrogenase
Posted Date:-2021-06-20 06:23:16
Assembly of two subunits 40 S and 60 S of the ribosome is
1.100S unit
2.80S unit
3.70A unit
4.90S unit
Posted Date:-2021-06-20 06:23:16
Bacterial cell wall is made up of
1.N-acetyl glucosamine
2.N-acetyl muramic acid
3.Both a and b
4.N-acetyl glucosamine, N-acetyl muramic acid and amino acids
Posted Date:-2021-06-20 06:23:16
Base pairs present in one turn of DNA are
1.12
2.11
3.10
4.9
Posted Date:-2021-06-20 06:23:16
Calcium is required for functioning of enzyme ...
1.Fumarase
2.ATP-ase
3.Succinate thiokinase
4.Isocitrate dehydrogenase
Posted Date:-2021-06-20 06:23:16
Cellulose is a polymer of D-glucose units joined by
1.α−1,4 glycosidic linkage
2.β−1,6 glycosidic linkage
3.β−1,4 glycosidic linkage
4.peptide linkage.
Posted Date:-2021-06-20 06:23:16
Chitin occurs in ...
1.Crab
2.caterpillar
3.Agaricus
4.All the above
Posted Date:-2021-06-20 06:23:16
Chitinous cell wall is present in
1.Plant
2.Bacteria
3.Protists
4.Fungi
Posted Date:-2021-06-20 06:23:16
Chlorzinc Iodide is used to stain
1.Cellulose
2.Lignin
3.Pectin
4.Hemicellulose
Posted Date:-2021-06-20 06:23:16
Choose the correct statement
1.All proteins have 20 amino acids
2.Both ends of protein are similar
3.All proteins are soluble
4.Proteins are formed by peptide bonds
Posted Date:-2021-06-20 06:23:16
Coenzyme is ....
1.Often a vitamin
2.Always an inorganic compound
3.Always a protein
4.Often a metal
Posted Date:-2021-06-20 06:23:16
Coenzyme is often a ... ..
1.Carbohydrate
2.Protein
3.Vitmin
4.Fatty acid
Posted Date:-2021-06-20 06:23:16
Cristae are
1.The membraneous infolding’s of the outer membrane of mitochondria
2.the jelly like central matrix of mitochondria
3.The membraneous infolding’s of the inner membrane of mitochondria
4.enzymes located on the inner mitochondrial membrane
Posted Date:-2021-06-20 06:23:16
Destructive effect of high temperature on enzyme action is due to
1.Formation of linkage between apoenzyme and its cofactor
2.Acceleration of reverse reaction
3.Destructive of tertiary and quaternary structure of enzymes
4.All of these
Posted Date:-2021-06-20 06:23:16
Detoxification of lipid soluble drugs and other harmful compounds in ER is carried out by cytochrome
1.C
2.a1-a2
3.b - f
4.P450
Posted Date:-2021-06-20 06:23:16
Energy currency/coin of cell is ....
1.ATP
2.NAD
3.ADP
4.GDP
Posted Date:-2021-06-20 06:23:16
Energy is stored in liver and muscles as ...
1.Fat
2.Protein
3.Glycogen
4.Glucose
Posted Date:-2021-06-20 06:23:16
Enzyme are polymers of ...
1.Fatty acids
2.Amino acids
3.Hexose sugar
4.Inorganic phosphate
Posted Date:-2021-06-20 06:23:16
Enzymes enhance rate of reaction by ...
1.Combining with product
2.Forming reactant product complex
3.Changing equilibrium of reaction
4.Lowering activation energy
Posted Date:-2021-06-20 06:23:16
Enzymes having slightly different molecular structure but performing identical activity are ...
1.Homoenzymes
2.Isoenzymes
3.Apoenzymes
4.Coenzymes
Posted Date:-2021-06-20 06:23:16
Experiments demonstrating the importance of the nucleus in controlling the growth of the cell was performed in
1.Neurospora
2.Star fish
3.Acetabularia
4.Leucocytes
Posted Date:-2021-06-20 06:23:16
F0-F1 particles meant for ATP synthesis are present on
1.outer mitochondrial membrane attached to the cytosolic or C face
2.inner mitochondrial membrane attached to the Matrix or M face
3.inner mitochondrial membrane attached to the cytosolic or C face
4.outer mitochondrial membrane attached to the Matrix or M face
Posted Date:-2021-06-20 06:23:16
Feedback inhibition is caused by blocking of enzymes by ... .
1.Accumulated end products
2.Chemicals produced by hormones
3.Hormones
4.Competitive inhibition
Posted Date:-2021-06-20 06:23:16
Fine cytoplasmic connections between neighbouring cells through the cell wall for cell to cell communication is called
1.Plasmosome
2.Plasmodesmata
3.Mesosome
4.All of these
Posted Date:-2021-06-20 06:23:16
Glucose is stored as glycogen in ...
1.Pancreas
2.Bone
3.Kidney
4.Liver
Posted Date:-2021-06-20 06:23:16
Identify the non -membraneous organelle from the following
1.Nucleus
2. Chloroplasts
3.ER
4.Ribosomes
Posted Date:-2021-06-20 06:23:16
In higher plants, the shape of the chloroplast is
1.Cup shaped
2.Girdle shaped
3.Ribbon shaped
4.Discoid
Posted Date:-2021-06-20 06:23:16
In RER, ribosomes are located on
1.the cytoplasmic side
2.on the luminal side
3.all through out
4.Both A and B
Posted Date:-2021-06-20 06:23:16
Cell theory states
1.All cells are living
2.All cells have nucleus
3.Cells are fundamental structural unit of living organisms
4.Cell reproduce by mitosis and meiosis
Posted Date:-2021-06-20 06:23:16
Living cell contains 60-75% water. Water present in human body is ...
1.60-65%
2.50-55%
3.75-80%
4.65-70%
Posted Date:-2021-06-20 06:23:16
Match the column ... .... [ kerala 2010] a) Sulphur 1. Chlorophyll b) Zinc 2. Nitrogenase c) Magnesium 3. Methionine d) Molybdenum 4. Auxin
1.a - 1, b - 2, c - 3, d -
2.a - 3, b - 4, c - 1, d - 2
3.a - 3, b - 1, c - 2, d - 4
4.a - 2, b - 4, c- 1, d - 3
Posted Date:-2021-06-20 06:23:16
Match the following: Column I Column II a. Transport protein 1. Insulin b. Regulatory protein (Hormone) 2. Enzymes c. Sensory or receptor protein 3. Antibody d. Protective protein (Defence) 4. Ro
1.a= 6; b= 1; c = 4; d= 3; e= 5; f= 2; g= 7
2.a= 6; b= 1; c = 4; d= 3; e= 2; f= 5; g= 7
3.a= 6; b= 4; c = 1; d= 3; e= 5; f= 2; g= 7
4.a= 6; b= 4; c = 1; d= 3; e= 2; f= 5; g= 7
Posted Date:-2021-06-20 06:23:16
Microfilaments are composed mainly of a protein called
1.Tubulin
2.Actin
3.Myosin
4.Chitin
Posted Date:-2021-06-20 06:23:16
Middle lamella is made up of pectin. Pectin is chemically
1.Polymer of D-glucose units
2.Glucoronic and galacturonic acid
3.Heteropolymer of xylose, mannose and arabinose
4.N-acetyl glucosamine and N-acetyl muramic acid
Posted Date:-2021-06-20 06:23:16
Mitoplast are
1.mitochondrial plastids
2.mitochondria without inner membrane
3.mitochondria without outer membrane
4.mitochondria without membranes
Posted Date:-2021-06-20 06:23:16
Mitoplast are
1.mitochondrial plastids
2.mitochondria without inner membrane
3.mitochondria without outer membrane
4.mitochondria without membranes
Posted Date:-2021-06-20 06:23:16
Most abundant component of cell is
1.Protein
2.Water
3.Cellulose
4.Lipid
Posted Date:-2021-06-20 06:23:16
Myocardial muscle cells have numerous large mitochondria called as
1.myosomes
2.myocardial mitochondrions
3.mitosomes
4.sarcosomes
Posted Date:-2021-06-20 06:23:16
NAD is ...
1.Nicotinamide adenosine diphosphate
2.Nicotine adenosine phosphate
3.Nicotinamide adenine dinucleotide
4.None of the above
Posted Date:-2021-06-20 06:23:16
Nicotine and cocaine are ....
1.Peptides
2.Tannins
3.Alkaloids
4.Resin
Posted Date:-2021-06-20 06:23:16
Omnis cellula e cellula is generalisation given by
1.Lamarck
2.Dutrochet
3.Leeuwenhoek
4.Virchow
Posted Date:-2021-06-20 06:23:16
On hydrolysis, nucleoside does not yield
1.Phosphoric acid.
2.Pentose sugar.
3.Purines.
4.Pyramidine.
Posted Date:-2021-06-20 06:23:16
Pectin is stained using
1.Iodine
2.Ruthenium red
3.acetocrmine
4.Sudan III
Posted Date:-2021-06-20 06:23:16
Plant cell wall is made up of
1.Cellulose, hemicelluloses and pectin
2.Cellulose, hemicelluloses and chitin
3.Cellulose only
4.Cellulose and chitin
Posted Date:-2021-06-20 06:23:16
Plant cell wall mainly composed of
1.Starch
2.Protien
3.Carbohydrates
4.Cellulose
Posted Date:-2021-06-20 06:23:16
Protein glycosylation occurs in the
1.lumen of lysosomes
2.lumen of smooth endoplasmic reticulum
3.lumen of rough endoplasmic reticulum
4.lumen of mitochondria
Posted Date:-2021-06-20 06:23:16
Read the following statements: (i) The polysaccharides made up of glucose monomers are cellulose, glycogen and starch. (ii) Fructose is the sweetest natural sugar. (iii) Glycine is the simplest am
1.Four
2.Five
3.Three
4.Two
Posted Date:-2021-06-20 06:23:16
Read the statements ... ... [ kerala 2008] i) Element important for production of thyroxine is iodine ii) Vitamin B6 is niacin or nicotinic acid iii) Fructose is a hexose monosaccharide iv) Globul
1.a, b, c are correct, d is wrong
2.a, c are correct, b, d are wrong
3.a, b are correct, c, d are wrong
4.a is correct, b, c d are wrong
Posted Date:-2021-06-20 06:23:16
RER is involved in the synthesis of
1.Membrane proteins and secretory proteins and nuclear proteins
2.Membrane proteins, secretory proteins and lysosomal proteins
3.Different proteins of the cell
4.Membrane proteins and secretory proteins
Posted Date:-2021-06-20 06:23:16
Ribophorins are
1.transmembrane glycoprotein on RER
2.luminal proteins on RER
3.luminal proteins on SER
4.transmembrane glycoprotein on SER
Posted Date:-2021-06-20 06:23:16
Rough Endoplasmic Reticulum is called ‘rough’ because
1.rough texture of the surface
2.surface is studded with membrane proteins
3.surface is studded with ribosomes
4.All of these
Posted Date:-2021-06-20 06:23:16
Secondary cell wall of plants is
1.Located outside the primary wall
2.Located inside the plasma membrane
3.Located inside the primary wall
4.Located just beneath middle lamellae
Posted Date:-2021-06-20 06:23:16
Select the correct answer from the following statements ... ..1) Cutin is fatty acid polymer2) Starch is glucose polymer3) Sucrose is monosaccharide4) Maltose is polymer of fructos
1.1, 2, 3 are correct
2.1 and 2 are correct
3.2 and 4 are correct
4.1 and 3 are correct
Posted Date:-2021-06-20 06:23:16
Semiautonomous organelle in the cell is
1.Chloroplasts
2.Peroxisomes
3.Gogibodies
4.ER
Posted Date:-2021-06-20 06:23:16
SER in the retinal cells are called as
1.Amyloid bodies
2.Myeloid bodies
3.Retinal reticulam
4.Sarcoplasmic reticulum
Posted Date:-2021-06-20 06:23:16
SER is involved in
1.Phospholipid biosynthesis and detoxification reaction
2.Phospholipid biosynthesis
3.Protien synthesis
4.Phospholipid biosynthesis and protein synthesis
Posted Date:-2021-06-20 06:23:16
Smooth endoplasmic reticulam is the site of
1.Carbohydrates synthesis
2.Protien synthesis
3.Lipid synthesis
4.Amino acid synthesis
Posted Date:-2021-06-20 06:23:16
Statement 1: Competitive inhibitor is also called substrate analogue. Statement 2: It resembles the enzyme in structure.
1.Both statements -1 and statement - 2 are true and statement - 2 is the corr
2.Both statements -1 and statement - 2 are true but statement - 2 is not the
3.Statement -1 is true and statement - 2 is false.
4.Statement -1 is false and statement - 2 is true.
Posted Date:-2021-06-20 06:23:16
Steroid hormones have receptors predominantly on
1.cell surface
2.Cytoplasm
3.both cell surface and cytoplasm
4.inside nucleus only
Posted Date:-2021-06-20 06:23:16
Temperature is increased from 3° to 40°. The rate of enzyme controlled biochemical reaction will ...
1.Not change
2.Increase
3.Increase initially and then decrease
4.Decrease
Posted Date:-2021-06-20 06:23:16
The cell theory is not applicable to
1.Virus
2.Fungi
3.Bacteria
4.Algae
Posted Date:-2021-06-20 06:23:16
The form in which sugar is present in sugarcane ...
1.Maltose
2.Sucrose
3.Fructose
4.Glucose
Posted Date:-2021-06-20 06:23:16
The functions of RER include
1.Protein synthesis and post translational modification
2.Protein synthesis and phospholipid biosynthesis
3.Protein synthesis
4.Protein synthesis and detoxification
Posted Date:-2021-06-20 06:23:16
The hormone adrenaline is formed from __________ amino acids
1.Tyrosine
2.Glycine
3.Alanine
4.Tryptophan
Posted Date:-2021-06-20 06:23:16
The longer the fatty acid chain, fluidity of the lipid bi layer
1.increases
2.decreases
3.no change in fluidity
4.none of the above
Posted Date:-2021-06-20 06:23:16
The main function of Centrosome is
1.Formation of spindle fibre
2.Osmoregulation
3.Protien synthesis
4.Secretion
Posted Date:-2021-06-20 06:23:16
The major biomolecule responsible for selective uptake of materials across plasma membrane
1.Protein
2.Carbohydrate
3.Lipids
4.Phospholipids
Posted Date:-2021-06-20 06:23:16
The membrane around the vacuole is called
1.Cytoplast
2.Tonoplast
3.Amyloplast
4.elaioplast
Posted Date:-2021-06-20 06:23:16
The most essential of the fatty acids is ...
1.Arachidonic acid
2.Linolenic acid
3.Linoleic acid
4.Oleic acid
Posted Date:-2021-06-20 06:23:16
The number of mitochondria in a cell depends
1.pH of the cell
2.Shape of the cell
3.Both A&B
4.Functional state of cell
Posted Date:-2021-06-20 06:23:16
The subunit of prokaryotic ribosomes are
1.60 S+40 S
2.60 S+30 S
3.50 S+30 S
4.70 S+30 S
Posted Date:-2021-06-20 06:23:16
The term ‘ endoplasmic reticulum’ was coined by
1.Pomaret
2.Johnson
3.Porter
4.Reinert
Posted Date:-2021-06-20 06:23:16
The term cell was coined by
1.Robert hooke
2.Schwann
3.Tatum
4.de Bary
Posted Date:-2021-06-20 06:23:16
Two polypeptide chains are joined by hydrogen bonds to produce ...
1.α-helix
2.Tertiary structure
3.β-pleated sheet
4.All the above
Posted Date:-2021-06-20 06:23:16
Which is not a protein ...
1.Trypsin
2.Collagen
3.Rubisco
4.N-Acetylglucosamine
Posted Date:-2021-06-20 06:23:16
Which is not a trait of enzymes? ...
1.Proteinaceous nature
2.Specific in nature
3.Speed up ate of biochemical reaction
4.Used up in reaction
Posted Date:-2021-06-20 06:23:16
Which is not correct? ...
1.All enzymes are biocatalysts
2.All proteins are enzymes
3.All enzymes are proteins
4.All enzymes are thermolabile
Posted Date:-2021-06-20 06:23:16
Which is not true of enzymes? ...
1.They are specific
2.They are made of globular proteins
3.Enzymes are most active at maximum temperature
4.They are most active at optimum temperature
Posted Date:-2021-06-20 06:23:16
Which of the following element is present in very less quantity in the body
1.K
2.Ca
3.Mg
4.Cu
Posted Date:-2021-06-20 06:23:16
Which of the following groups has cell wall
1.Bacteria and plants
2.Bacteria, fungi and plants
3.Bacteria, fungi, plants and animals
4.Bacteria, plant and animals
Posted Date:-2021-06-20 06:23:16
Which of the following is a aromatic polymer of phenols
1.Cutin
2.Lignin
3.Chitin
4.Pectin
Posted Date:-2021-06-20 06:23:16
Which of the following is a semi-autonomous organelle ?
1.Mitochondria
2.Chloroplasts
3.Both A&B
4.Mitochondria, chloroplasts and ribosomes
Posted Date:-2021-06-20 06:23:16
Which of the following is associated with the structure of Golgicomplex ?
1.Quatasomes
2.Annuli
3.Cristae
4.None of the above
Posted Date:-2021-06-20 06:23:16
Which of the following is the histochemical marker for mitochondrial inner membrane
1.monoamine oxidase
2. cytochrome oxidase
3.malate dehydogenase
4.adenylate kinase
Posted Date:-2021-06-20 06:23:16
Which of the following organelle is involved in cell wall synthesis
1.Mitochondria
2.Golgi apparatus
3.lysosome
4.Chloroplast
Posted Date:-2021-06-20 06:23:16
Which of the following organelle is involved in xenobiotic detoxification
1.SER
2.RER
3.Lysosome
4.Golgi bodies
Posted Date:-2021-06-20 06:23:16
Which of the following organelles has a continuous connection with nuclear membrane
1.Golgibodies
2.RER
3.SER
4.Lysosomes
Posted Date:-2021-06-20 06:23:16
Which of the following pair is monosaccharide? ...
1.Glucose and Fructose
2.Glucose and Sucrose
3.Ribose and Maltose
4.Ribose and Sucrose
Posted Date:-2021-06-20 06:23:16
Which of the following stain is used to visualise mitochondrion
1.Acetocarmine
2.Haematoxylin
3.Orange G
4.Janus green
Posted Date:-2021-06-20 06:23:16
Which of the following statements are incorrect regarding ER?
1.The adipose tissue has both SER and RER
2.RBC lacks both RER and SER
3.Plasma cells has RER only
4.Hepatocytes has both RER and SER
Posted Date:-2021-06-20 06:23:16
Which of the following statements are not true regarding cell wall
1.Plant cell wall is made up of cellulose
2.Cell wall provides mechanical support to the cell
3.Cell was is semi-permeable
4.Plant cell wall is a non-living structure
Posted Date:-2021-06-20 06:23:16
Which of the following statements are true about mitochondria
1.Mitochondria has two envelopes
2.Inner membrane is not permeable
3.Outer membrane has porin protein channels
4.All of the above
Posted Date:-2021-06-20 06:23:16
Which of the following statements are true regarding cellulose synthesis
1.Cellulose is synthesized on the external surface of the cell
2.The enzyme involved is a plasma membrane bound complex called cellulose syn
3.UDP glucose is the precursor of cellulose
4.All of these
Posted Date:-2021-06-20 06:23:16
Which of the following statements are true regarding endoplasmic reticulum
1.SER is involved in synthesis of lipids
2.ER provides structural framework to the cell
3.ER acts as an intracellular transporting system
4.All of the above
Posted Date:-2021-06-20 06:23:16
Which one is a fibrous protein? ...
1.Collagen
2.Globulin
3.Haemoglobin
4.Hordein
Posted Date:-2021-06-20 06:23:16
Who coined the term mitochondria
1.Kolliker
2.Flemming
3.Altman
4.Benda
Posted Date:-2021-06-20 06:23:16
Who got Nobel Prize in 1978 for working on enzymes? ..
1.Koshland
2.Arber and Nathans
3.Nass and Nase
4.H.G. Khorana
Posted Date:-2021-06-20 06:23:16