_____________ bacterium can withstand the dosage of radiation, which are several times higher than what human cells can tolerate
1.Escherichia coli
2.Conus magus
3.Deinococcus radiodurans
4.Staphylococcus aureus
Posted Date:-2021-12-04 21:17:01
A characteristic feature of bryophytes is
1. a dominant and parasitic sporophyte
2.a dominant and spore-producing gametophyte
3.a small sporophyte phase, which is dependent on the gametophyte
4.sporophytes stay for a longer duration
Posted Date:-2021-12-04 22:45:24
Assertion: mode of nutrition in higher animals is heterotrophic Reason: Animals can use different trophic levels for heterotrophic nutrition
1.if the assertion is true but reason is false
2.if both assertion and reason are true and reason is correct explanation of assertion
3.if both assertion and reason are false
4.if both assertion and reason are true but reason is not correct explanation of assertion
Posted Date:-2021-12-04 20:40:28
If we separate the cell organelles of a living cell, then which part should be alive
1.Ribosome
2.cell wall
3.endoplasmic reticulum
4.chloroplast
Posted Date:-2021-12-04 20:56:44
In C3 and C4 plants, primary carboxylation takes place with the help of
1.PEP carboxylse and pyruvate carboxylase
2.RuBP carboxylase and PEP carboxylase
3.PEP carboxylase and RuBP carboxylase
4.RuBP carboxylase and pyruvate carboxylase
Posted Date:-2021-12-04 23:16:07
In the rainy season, doors get swelled up due to
1.Transpiration
2.Imbibition
3.Diffusion
4.Respiration
Posted Date:-2021-12-04 23:14:38
It receives sound vibration and passes to the eardrum
1.outer ear
2. middle ear
3.inner ear
4.eustachian tube
Posted Date:-2021-12-04 22:33:43
Most of the marine invertebrates are
1.Osmoregulators
2.Osmoconformers
3.both depend on sea water concentration
4.None of the above
Posted Date:-2021-12-04 20:49:16
The bioremediation process involving the usage of plants to degrade pollutants is
1.Composting
2.Biopile
3.Phytoremediation
4.Land farming
Posted Date:-2021-12-04 21:17:39
The mode of nutrition in which one organism obtains nutrition from other organisms is known as
1.symbiosis
2.autotrophic nutrition
3.saprophytic nutrition
4.heterotrophic nutrition
Posted Date:-2021-12-04 20:36:18
The Organ of Corti is present in
1.scala vestibuli
2.scala tympani
3. scala media
4.None of the above
Posted Date:-2021-12-04 22:34:59
The thalloid plant body is found in
1.Marchantia
2.Sphagnum
3.Funaria
4.Salvinia
Posted Date:-2021-12-04 22:41:58
These activities are characteristics of peroxisomes I. Catalase activity II. Possess a glyoxylate cycle III. Degradation of very long chain fatty acids IV. Produce dihydrogen
1.I and II
2. I and III
3.III and IV
4. II and IV
Posted Date:-2021-12-04 22:48:35
This bioremediation technique includes mixing contaminated water and soil, fertilizers and carbon dioxide in a bioreactor to stimulate biodegradation
1.Composting
2.Slurry-phase bioremediation
3.In situ hybridization
4.Biopile treatment
Posted Date:-2021-12-04 21:14:05
This enzyme embedded in the peroxisomal membrane is responsible to activate fatty acids before undergoing beta-oxidation.
1.Fatty acid dehydrogenase
2.3-ketothiolase
3.Acyl- CoA oxidase
4.Acyl – CoA synthase
Posted Date:-2021-12-04 22:54:56
This statement about Potassium Bromate is/are true 1.Potassium Bromate is a category 2B carcinogen 2.Potassium Bromate increases dough strength, leads to higher rising and uniform finish to baked products 3.Food Safety and Standards Authority of India (FSSAI) allows them upto 50 parts per million
1. 1,2
2. 1,3
3. 2,3
4.All of these
Posted Date:-2021-12-04 23:01:53
Which among the following is also known as bog moss?
1.Riccia
2.Sphagnum
3.Marchantia
4.Funaria
Posted Date:-2021-12-04 22:41:24
A person on a long hunger strike, surviving only on water will have
1.less amino acids in his urine
2.more sodium in hir urine
3.less urea in his urine
4. more glucose in his blood
Posted Date:-2021-12-04 20:48:00
A phosphoglyceride is always composed of
1.only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate the group is also attached
2.only a saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached
3.an unsaturated or saturated fatty acid esterified to a phosphate molecule to which a glycerol molecule is also attached
4.an unsaturated or saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached
Posted Date:-2021-12-04 23:19:01
A process using microbes to convert toxic industrial wastes to less toxic or non-toxic compounds is
1.Precipitation
2.Complement fixation
3.Bioconversion
4.Bioremediation
Posted Date:-2021-12-04 21:16:16
A stable ecosystem is maintained with the interaction of
1.predators
2.prey
3.animals-human
4.predator-prey
Posted Date:-2021-12-04 20:43:51
All the plants like fern and mosses, which produce spores are grouped under
1.bryophytes
2.cryptogams
3.thallophytes
4.sporophytes
Posted Date:-2021-12-04 22:46:41
Ananda Chakraborty received the first U.S. patent for a GM entity. The entity was
1.The GloFish
2.a transgenic mouse expressing the growth hormone gene
3.Cloned E.Coli
4.Pseudomonas engineered to degrade petroleum
Posted Date:-2021-12-04 21:15:32
At this stage of wastewater treatment, methanogenic microbes are the most significant
1.Sludge digestion
2.Primary treatment
3.Secondary treatment
4.Biological oxidation
Posted Date:-2021-12-04 21:13:24
Bioaugmentation involves
1.eliminating sludge
2. plants usage for bioremediation
3.addition of microbes to a cleanup site
4.bioventing
Posted Date:-2021-12-04 21:12:06
Bioremediation
1.usage of microbes to create new organisms
2.usage of anaerobic bacteria to create new antibiotics
3.usage of microbes to destroy environmental pollutants
4.usage of aerobic bacteria to create new vaccines
Posted Date:-2021-12-04 21:14:47
Chlorophyll in chloroplasts is present in
1.Stroma
2.outer membrane
3.thylakoids
4. inner membrane
Posted Date:-2021-12-04 21:00:20
Digestion of food in amoeba occurs in
1.cytoplasm
2.nucleus
3.food vacuole
4.None of the above
Posted Date:-2021-12-04 20:42:22
Extranuclear DNA is found in
1.Ribosome
2.Chloroplast
3.Golgi apparatus
4. endoplasmic reticulum
Posted Date:-2021-12-04 20:57:24
Factory for synthesis of sugars in autotrophic eukaryotes
1.Mitochondria
2.Chloroplast
3.Ribosome
4.Endoplasmic reticulum
Posted Date:-2021-12-04 20:53:30
Find the correct statement about Inner ear
1.made up of bony and membranous segments
2.membranous labyrinth encloses bony labyrinth
3.endolymph surrounds membranous labyrinth
4.air-filled inner segment
Posted Date:-2021-12-04 22:37:16
Find the correct statement about the eustachian tube
1.connects internal ear to external ear
2. it equalises pressure between middle ear and outer atmosphere
3.connects middle ear to pharynx
4.Both (b) and (c)
Posted Date:-2021-12-04 22:36:27
Find the incorrect match
1.Middle ear – amplifies sound waves
2.Hair cells – present on basilar membrane
3.Saccule and utricle – maintain static equilibrium
4.Cristae – perform hearing function
Posted Date:-2021-12-04 22:39:33
Find the true statement about bryophytes
1.they have chloroplasts
2.they have archegonia
3. they are thalloid
4.All of the above
Posted Date:-2021-12-04 22:44:02
HACCP stands for
1.Physical, Chemical and Biological hazards
2.Accurately monitoring food hygiene hazards
3.Identifying CCPs, inclusive of procedure, location and process
4.A systematic analysis of all steps and regular monitoring of control points
Posted Date:-2021-12-04 23:03:33
Heterotrophic nutrition is
1.oxidation of glucose
2.breakdown of glucose into energy
3.utilization of energy obtained by plants
4.All of the above
Posted Date:-2021-12-04 20:37:12
In chloroplasts, the parallel layering of membranes is suited for
1. maximum exposure of enzymes
2.maximum light absorption
3.minimum light absorption so cells can maintain their temperature
4.All of these
Posted Date:-2021-12-04 20:59:35
In chloroplasts, where do light reactions occur
1.outer membrane
2.inner membrane
3.thylakoid membrane
4.stroma
Posted Date:-2021-12-04 20:58:17
In mosses, meiosis takes place during
1.gamete formation
2.antheridia and archegonia formation
3.spore germination
4.spore formation
Posted Date:-2021-12-04 22:44:43
In Paramoecium, osmoregulation is a function of
1.cytostome
2.contractile vacuole
3.cytopyge
4.trichocysts
Posted Date:-2021-12-04 20:44:58
In some of the liverworts, spore dispersal is aided by
1.elaters
2.peristome teeth
3.indusium
4.calyptra
Posted Date:-2021-12-04 22:42:37
Independent male and female gametophytes are present in
1.Pinus
2.mustard
3.castor
4.Sphagnum
Posted Date:-2021-12-04 22:47:23
Inside the cell, H2O2 clearance is brought about by
1.Peroxisome with enzyme amino oxidase
2.Glyoxysome with enzyme catalase
3.Peroxisome with enzyme catalase
4.Glyoxysome with enzyme isocitrate lyase
Posted Date:-2021-12-04 22:52:01
Kidney matrix retains some quantity of urea to maintain
1.metabolism
2.micturition
3.desired osmolarity
4.balance of the body
Posted Date:-2021-12-04 20:50:06
Macromolecule chitin is
1.phosphorous containing polysaccharide
2. nitrogen containing polysaccharide
3.sulphur containing polysaccharide
4.simple polysaccharide
Posted Date:-2021-12-04 23:20:01
Match the following Column I Column II Reissner’s membrane (i) covered by mucous membrane Incus (ii) terminates at the oval window Tympanic membrane (iii) separates scala media and scala vestibuli Scala vestibuli (iv) anvil-shaped
1. iii, iv, i, ii
2. i, ii, iii, iv
3. iii, i, ii, iv
4. i, iii, iv, ii
Posted Date:-2021-12-04 22:38:51
Mechanism of regulation, typically between entities and its environment of solutes and the loss and gain of water is known as
1.Homeostasis
2.Thermoregulation
3.Hemostasis
4.Osmoregulation
Posted Date:-2021-12-04 20:48:40
Organelle – Glyoxysomes is involved in
1.conversion of fatty acids to lipids
2.conversion of amino acids to carbohydrates
3.conversion of fatty acids to carbohydrates
4.conversion of amino acids to proteins
Posted Date:-2021-12-04 22:52:50
Osmoregulators carry out excretion of salt through
1.gills
2.fins
3.scales
4.bladder
Posted Date:-2021-12-04 20:45:34
Peat moss is used for transporting plants to distant places because
1.it is hygroscopic
2. it reduces transpiration
3.it is easily available
4.it serves as a disinfectant
Posted Date:-2021-12-04 22:43:24
Peroxisomes are involved in which type of reactions pertaining to plant photosynthesis?
1.Calvin Cycle
2. Glycolytic cycle
3.Glyoxylate cycle
4. Bacterial photosynthesis
Posted Date:-2021-12-04 23:16:50
Pick the odd one out
1.Glycosomes
2.Mitochondria
3.Hydrogenosomes
4.Mitosomes
Posted Date:-2021-12-04 22:49:47
Pick the odd one out in context of their surrounding membrane systems
1.Mitochondria
2.Chloroplasts
3.Endoplasmic reticulum
4.Nucleus
Posted Date:-2021-12-04 22:49:15
Stroma is the ground material of which of these
1.Ribosomes
2.Lysosomes
3.Mitochondria
4.Chloroplasts
Posted Date:-2021-12-04 20:54:18
The antherozoids of Funaria are
1.monociliated
2.biciliated
3.multiciliated
4.aciliated
Posted Date:-2021-12-04 22:46:01
The basilar membrane is present between
1.scala vestibule and scala media
2.scala media and scala tympani
3.both (a) and (b)
4.scala vestibule and scala tympani
Posted Date:-2021-12-04 22:40:17
The border between the middle and inner ear is formed by
1.incus
2.oval window
3.pinnae
4.tympanic membrane
Posted Date:-2021-12-04 22:34:21
The bright colours of ripe fruits is due to
1.Chromoplasts
2.Chloroplasts
3.Amyloplasts
4.Leucoplasts
Posted Date:-2021-12-04 20:52:32
The full form of PFA is
1.Prevention of Food Act
2.Protection of Food Act
3.Prevention of Food Adulteration
4.None of the above is correct
Posted Date:-2021-12-04 22:57:22
The fundamental feature of Kranz Anatomy of C4 plants is
1.Presence of agranal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells
2. Presence of granal chloroplasts in bundle sheath cells and agranal chloroplasts in mesophyll cells
3.Presence of chloroplasts in epidermal and mesophyll cells
4. Presence of agranal chloroplasts in both mesophyll and bundle sheath cells
Posted Date:-2021-12-04 23:17:38
The membranous labyrinth contains
1.Cystolymph
2.Otolymph
3.Perilymph
4.Endolymph
Posted Date:-2021-12-04 22:35:34
The mode of nutrition in fungi
1.saprotrophic or parasitic
2.only parasitic
3.only saprotrophic
4.None of the above
Posted Date:-2021-12-04 20:43:05
The mutualistic association between certain fungi and roots of vascular plants are known as
1.haustoria
2.mycelium
3.rhizoids
4.mycorrhizae
Posted Date:-2021-12-04 20:41:09
The name of the group of proteins in the peroxisomal membrane is
1.Peroxins
2.Transporters
3.Translocation proteins
4.Peroxisomal membrane proteins
Posted Date:-2021-12-04 22:54:12
The organelle helping in penetrating of sperm into egg during fertilization is
1.peroxisome
2.nucleus
3.lysosome
4.mitochondrion
Posted Date:-2021-12-04 22:51:17
The parasitic fungus which destroys wheat plant is
1.lice
2.leech
3.cuscuta
4.Puccinia
Posted Date:-2021-12-04 20:37:53
The preservation of food through ‘ Cold sterilization’ involves
1.Dehydration
2.Lyophilization
3.Refrigeration
4.Radiation
Posted Date:-2021-12-04 22:58:00
The statement which is incorrect with respect to enzyme action is
1.Addition of a lot of succinates does not reverse the inhibition of succinic dehydrogenase by malonate
2. the substrate binds with the enzyme as its active site
3. a non-competitive inhibitor binds the enzyme at a site distinct from that which binds the substrate
4.malonate is a competitive inhibitor of succinic dehydrogenase
Posted Date:-2021-12-04 23:18:19
The thylakoid in chloroplasts are arranged as
1.Stacked discs
2.interconnected disc
3.interconnected sacs
4.None of the above
Posted Date:-2021-12-04 20:55:58
This cleanup approach includes removal of groundwater or soil from its natural setting to permit for bioremediation
1.Bioaugmentation
2. in situ bioremediation
3.ex situ bioremediation
4.Phytoremediation
Posted Date:-2021-12-04 21:12:44
This forms the crystalline core inside peroxisome
1.condensed ammonium chloride
2.salt crystals
3.highly condensed oxidative enzymes
4.collection of phospholipids
Posted Date:-2021-12-04 22:53:32
This is a wrongly matched pair
1.Alcohol – Nitrogenase
2. Detergents – Lipase
3.Textile – Amylase
4. Fruit juice – Pectinase
Posted Date:-2021-12-04 23:20:55
This is an example of biological hazard
1.Cleaners
2.Antibiotics
3.Salmonella
4.Dirt
Posted Date:-2021-12-04 22:58:41
This is both osmoregulator and a nitrogenous product
1.Uric acid
2.Urea
3.NH3
4.All of the above
Posted Date:-2021-12-04 20:51:37
This is not a primary function of protonephridia
1.excretion
2.osmoregulation
3. fluid volume regulation
4.ionic volume regulation
Posted Date:-2021-12-04 20:50:53
This is not an indigenous microbe used for bioremediation
1.Pseudomonas aeruginosa
2.Piscirickettsia salmonis
3.Phanerochaete sordida
4.E. coli
Posted Date:-2021-12-04 21:18:18
This is used as an osmolyte in humans to increase medullary interstitial osmolality during concentration of urine
1.Urea
2.TMAO
3.(a) and (b) both
4.Uric acid
Posted Date:-2021-12-04 20:47:01
This method dehydrates microbial cells by plasmolysis thereby causing them to die
1.Heating
2.Smoking
3.Pasteurization
4.Sugaring
Posted Date:-2021-12-04 22:56:39
This organelle is involved in lipid metabolism
1.RER
2.SER
3.Golgi apparatus
4. Peroxisomes
Posted Date:-2021-12-04 22:50:39
This statement regarding enzyme inhibition is correct
1.non-competitive inhibitors often bind to the enzyme irreversibly
2.non-competitive inhibition of an enzyme can be overcome by adding a large amount of substrate
3.competitive inhibition is observed when substrate and inhibitor compete for the active site on enzyme
4. competitive inhibition is observed when substrate competes with an enzyme to bind to an inhibitor protein
Posted Date:-2021-12-04 23:15:20
Under the PFA Act, when is the food said to be adulterated
1.if any ingredient is injurious to health
2. if it is obtained from a diseased animal
3.if spices are sold without their essence
4.All of these
Posted Date:-2021-12-04 22:59:41
What is the mode of nutrition in bacteria?
1.heterotrophic
2.autotrophic
3.autotrophic and heterotrophic
4.None of the above
Posted Date:-2021-12-04 20:41:49
When green tomatoes fruits turn to red, then
1.new chromoplasts are formed
2.chloroplasts are disintegrated and get converted into chromoplasts
3.chromoplasts are changed to chloroplasts
4.None of these
Posted Date:-2021-12-04 20:54:58
Which part of the ear has no role to play in hearing but is very important?
1.Ear ossicles
2.Organ of Corti
3.Eustachian tube
4.Vestibular apparatus
Posted Date:-2021-12-04 22:32:57
Without restoration, if excess water passes out from the tissues of kidney, the cells would
1.shrivel and die
2.burst open and die
3.not get affected at all
4.take water from plasma
Posted Date:-2021-12-04 20:46:21