Que- Amount of water required to excrete 1gN of Urea is_________?
a. 1 ml
b. 50 ml
c. 100 ml
d. 150 ml
Answer- 50 ml
Que- Each ach nephridium of earthworm opens to the exterior by__________?
a. Nephrostome
b. Nephridiopore
c. Flame cell
d. Anus
Answer- Nephridiopore
Que- The main nitrogenous waste formed in the body of earthworm is/are___________?
a. Ammonia
b. Urea
c. Uric acid
d. Trimethylamine oxide
Answer- Urea
Que- Which of the following excretory structure is associated with gut of the organism?
a. Protonephridium
b. Metanephridium
c. Malpighian tubules
d. Nephrons
Answer- Malpighian tubules
Que- Which of the following nephrons play important role in production of concentrated urine?
a. Crotical
b. Medullary
c. Juxtramedullary
d. None of these
Answer- Juxtramedullary
Que- Which of the following kidney stones are most common?
a. Calcium oxalate
b. Calcium phosphate
c. Uric acid
d. All of these
Answer- Calcium oxalate
Que- Which of the following treatment will be administered first in a newly diagnosed renal failure patient?
a. Renal transplant
b. Peritoneal Dialysis
c. Lithotripsy
d. Hemodialysis
Answer- Hemodialysis
Que- In plants, which of the following is a waste product produced both during photosynthesis and respiration?
a. CO2
b. H2O
c. O2
d. Both A and B
Answer- H2O
Que- In animals excess of nitrogen is excreted primarily in form of___________?
a. Creatinine
b. Trimethyamine oxide
c. Pyrimidine
d. Ammonia
Answer- Ammonia
Que- Hydra has no specialized excretory system because:
a. It does not produce waste material
b. Due to absence of mesoderm
c. The whole body cells are in contact with water
d. It has pseudocoelom.
Answer- The whole body cells are in contact with water
Que- The distal blind end of the malpighian tubules bathes freely in____________?
a. Digestive tract
b. Intestines
c. Haemocoel
d. Coelom
Answer- Haemocoel
Que- Which of the following is a sentimentally arranged excretory system?
a. Protonephridium
b. Metanephridium
c. Malpighian tubules
d. Nephrons
Answer- Metanephridium
Que- Excessive lactic acid is converted into __________ by liver?
a. Glucose
b. Fructose
c. Sucrose
d. Glycogen
Answer- Glycogen
Que- Each human kidney receives _______% of total cardiac out put?
a. 0.1
b. 0.2
c. 0.3
d. 0.4
Answer- 0.2
Que- On which of the following site the posterior pituitary hormone acts predominantly?
a. Proximal convoluted tubule
b. Descending limb of loop of Henle
c. Ascending limb of loop of Henle
d. Collecting tubules
Answer- Collecting tubules
Que- Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called__________?
a. Endotherms
b. Ectotherms
c. Heterotherms
d. Homeotherms
Answer- Heterotherms
Que- Blubber a thick layer of fat is present in___________?
a. Fresh water mammals
b. Terrestrial mammals
c. Marine Mammals
d. Flying mammals
Answer- Marine Mammals
Que- Production of pyrogens is a __________ phenomenon?
a. Protective
b. Destructive
c. Constructive
d. Aggressive
Answer- Protective
Que- Thermostat of human body is present in__________?
a. Fore brain
b. Hind Brain
c. Thalamus
d. Hypothalamus
Answer- Hypothalamus
Que- Which of the following structure in plant's body is called excretophores?
a. Stem
b. Leaves
c. Flowers
d. Roots
Answer- Leaves
Que- The characteristic which enable animals to tolerate dehydration is called__________?
a. Osmoconformation
b. Osmoregulaton
c. Anhydrobiosis
d. Anhydrosis
Answer- Anhydrobiosis
Que- Which of the following fishes excrete large volume of diluted urine?
a. Bony Marine fishes
b. Fresh water fishes
c. Both depending upon the surrounding water
d. None of these
Answer- Fresh water fishes
Que- Rose is an example of____________?
a. Hydrophytes
b. Mesophytes
c. Xerophytes
d. Halophytes
Answer- Mesophytes
Que- In a hot summer after noon, if your body's Homeostatic machinery keep your internal temperature quite lower than that of external than this is an example of____________?
a. Positive feed back
b. Negative feed back
c. Feed back
d. Osmoregulation
Answer- Negative feed back
Que- Marine fish can keep their internal environment hypertonic with respect to the surrounding salty water by retaining.
a. Excessive urea which will increase their internal solute concentration and prevent body shrinkage in hypertonic environment
b. Trimethyl alanine
c. Ammonia
d. Trimethylamine oxide
Answer- Trimethylamine oxide
Que- Terrestrial animals like kangaroo rat survive even without drinking water since__________?
a. They don't require water for their metabolic process
b. They can retain excessive water in their body during raining season.
c. They feed on carbohydrate rich seeds which can provide them with metabolic water
d. They are anhydrobiotic organisms
Answer- They are anhydrobiotic organisms
Que- Aquatic animals excrete nitrogenous waste commonly in the form of_____________?
a. Ammonia
b. Urea
c. Uric acid
d. Trimethylamine oxide
Answer- Ammonia
Que- Protonephridia are present in____________?
a. Round worms
b. Flateworm
c. Tape worms
d. Segmented worms
Answer- Flateworm
Que- Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules?
a. Glucose
b. Amino acids
c. Nitrogenous waste
d. All of these
Answer- Nitrogenous waste
Que- Which of the following mechanism explains development of anemia in Renal failure?
a. Failure of bone marrow is accompanied with renal failure.
b. Destruction of RBC results from accumulated urea in the blood.
c. Chronicity of the disease is respobsible for anemia
d. Failure of proper RBC synthesis, due to lack of chemical stimulation.
Answer- Failure of proper RBC synthesis, due to lack of chemical stimulation.
Que- Which adaptation is acquired by plants of cooler areas to prevent lipid crystal formation in cell membrane?
a. Change in membrane protein composition.
b. Change in the solute composition of the cell membrane which prevents crystallization.
c. Increase in proportion of unsaturated fatty acids.
d. Development of heat shock proteins.
Answer- Increase in proportion of unsaturated fatty acids.
Que- Which of the following statement about Homeostasis is incorrect?
a. There is a definite control system that regulates the homeostatic activities
b. Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment
c. Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment
d. All are correct
Answer- Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment
Que- Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?
a. Hagfish
b. Fresh water fishes
c. Bony fishes
d. None of these
Answer- Bony fishes
Que- Normal body temperature in mamals like human beings is____________?
a. 26 – 28°C
b. 36 – 38°C
c. 46 – 48°C
d. 56 – 58°C
Answer- 36 – 38°C
Que- In osmosis water molecules move from area of _____________ through semipermeable memberane?
a. Higher solute concentration to lower solute concentration
b. Lower solute concentration to higher solute concentration
c. Lower solvent concentration to higher solvent concentration
d. All of these
Answer- Lower solute concentration to higher solute concentration
Que- Which of the following is most toxic?
a. Ammonia
b. Urea
c. Uric acid
d. Trimethylamine oxide
Answer- Ammonia
Que- In Urea cycle __________ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.
a. 1.0
b. 2.0
c. 3.0
d. 4.0
Answer- 2.0
Que- Which of the vascular channels are related to Juxtramedullary nephrous only?
a. Afferent and efferent arterioles
b. Peritubualr capillaries
c. Vasa nervosa
d. Vasa recta
Answer- Vasa recta
Que- A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone?
a. Kidney surgery
b. Burring a hole and removing the stone manually (nephrolithotomy)
c. Extracorporeal Shock wave lithotripsy
d. None of these
Answer- Extracorporeal Shock wave lithotripsy
Que- Bats & humming birds belong to___________?
a. Endotherms
b. Ectotherms
c. Heterotherms
d. Homeotherms
Answer- Heterotherms
Que- Thick, waxy & leathery cuticle around leaves is present in___________?
a. Hydrophytes
b. Mesophytes
c. Xerophytes
d. Halophytes
Answer- Xerophytes
Que- Which of the following animal excrete nitrogenous waste mainly as uric acid?
a. Hydra
b. Planaria.
c. Humans
d. Birds.
Answer- Birds.
Que- Which of the following openings have cilia?
a. Nephrostome
b. Nephridiopore
c. Both of these
d. None of these
Answer- Nephrostome
Que- Malphighian tubules absorb waste materials and salts from__________?
a. Blood
b. Lymph
c. Gut
d. Hemolymph
Answer- Hemolymph
Que- Which of the following filtrate contains excessive amount of amino acids, glucose, and salts?
a. Glomerular filtrate
b. Filtrate passing through ascending limb
c. Filtrate passing through distal conveluted tubule
d. Filtrate passing through collecting tubules
Answer- Glomerular filtrate
Que- Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate
a. 0.805
b. 0.905
c. 0.955
d. 0.995
Answer- 0.995
Que- The nephridia of earthworm open into the coelom by_________?
a. Nephrostome
b. Nephridiopore
c. Flame cell
d. Anus
Answer- Nephrostome
Que- Nephrostome in earthworm opens in____________?
a. External space
b. Internal Body cavity
c. In gut
d. In Bladder
Answer- Internal Body cavity
Que- Scolidon or dog fish belong to the group of fishes called__________?
a. Cartilaginous fishes
b. Bony fishes
c. Running fishes
d. Jawless fishes
Answer- Cartilaginous fishes
Que- They are considered to be the most primitive and are surely the first of the vertebrates?
a. Frogs
b. Reptiles
c. Amphibinas
d. Jawless fishes
Answer- Jawless fishes
Que- Sub- phylum vertebrate is also known as__________?
a. Pisces
b. Craniata
c. Aves
d. Amphibia
Answer- Craniata
Que- The phylum chrordata comprise about how many species?
a. 25000.0
b. 50000.0
c. 100000.0
d. 10,00,000
Answer- 50000.0
Que- It is stiff rod of special cells surrounded by connecive tissue present in the mid -dorsal region and appears in the embryos of all chordates
a. Placenta
b. Notochord
c. Cranianta
d. Ligule
Answer- Notochord
Que- Snails belong to__________?
a. Cephalopodsxc
b. Gastropods
c. Bivalves
d. Athropods
Answer- Gastropods
Que- In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth.
a. Ligule
b. Radula
c. Mantle
d. Muscle
Answer- Radula
Que- All insects have how many parts of legs?
a. 4.0
b. 2.0
c. 3.0
d. 6.0
Answer- 3.0
Que- In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________?
a. Endodermis
b. Mesophyll
c. Chitin
d. Epidermis
Answer- Epidermis
Que- In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?
a. Arthropods
b. Chordata
c. Annelida
d. Echinodermata
Answer- Arthropods
Que- In man which organisms cause abscesses on the skin of arms or legs?
a. Ascaris
b. Bacteria
c. Ring worm
d. Suinea worm
Answer- Suinea worm
Que- Chitin in cockroach is absent in____________?
a. Epicuticle
b. Exocuticle
c. Endocuticle
d. All of these
Answer- Epicuticle
Que- Melanin pigment in cockroach is found in__________?
a. Epicuticle
b. Exocuticle
c. Endocuticle
d. All of these
Answer- Exocuticle
Que- The bristles on the body of the cockroach arise from__________?
a. Epidermis
b. Trichogen cell
c. Basement membrane
d. Malpighian cell
Answer- Trichogen cell
Que- The wax present on the body of cockroach is secreted:
a. Mucocytes
b. Leucocytes
c. Oenocytes
d. Granulocytes
Answer- Oenocytes
Que- Which organisms are sometimes called the ” pastures of the sea”?
a. Diatoms
b. Radiolarians
c. Dinoflagellates
d. Foraminiferans
Answer- Diatoms
Que- Diatoms belong to___________?
a. Chrysophyta
b. Bacillariophyceae
c. Xanthophyceae
d. Both A. and B.
Answer- Both A. and B.
Que- Which one of the following is representing the group of diatoms?
a. Pinnularia, Navicula, Cymbella, Melosira
b. Euglenamorpha, Hedneria , Heteronema, Colacium
c. Nostoc, Anabaena, Aulosira, Cylindrospermum
d. Cochlodinium, Gymnodinium, Lenodinium, Peridinium
Answer- Pinnularia, Navicula, Cymbella, Melosira
Que- Diatoms are found in__________?
a. Phytoplanktonic population
b. Freshwater lakes and ponds
c. Marine environment
d. All of the above
Answer- All of the above
Que- Centric discoid form of diatoms is__________?
a. Diplaneis
b. Coscinodiscus
c. Camphyloneiscus
d. Stephanodis
Answer- Coscinodiscus
Que- Microfossile often present in petroleum producing formationsare those of__________?
a. Diatioms
b. Heliozoans
c. Radiolarians
d. Foraminiferans
Answer- Diatioms
Que- Cell wall is richly impregnated with silica in__________?
a. Rhodophyta
b. Phaeophyta
c. Baciliariophyta
d. Euglenophyta
Answer- Baciliariophyta
Que- The cell wall is usually composed of two overlapping halves called epitheca and hypotheca in__________?
a. Diatoms
b. Desmids
c. Pyrrophyta
d. Chlorophyta
Answer- Diatoms
Que- Unlike other algae, diatoms do not readily decay due to___________?
a. Nonliving cells
b. Siliceous wall
c. Mucilaginous wall
d. Water proof cell
Answer- Siliceous wall
Que- Cell wall is extremely well preserved in fossil specimens in__________?
a. Diatoms
b. Dinoflagellates
c. Slime moulds
d. None of these
Answer- Diatoms
Que- Empty diatom cells are called___________?
a. Raphe
b. Valves
c. Frustule
d. Girdles
Answer- Frustule
Que- Diatom frustule/ shell is made of_____________?
a. Silica
b. Calcium carbonate
c. Manesium carbonate
d. Both A. and B.
Answer- Silica
Que- The chloroplasts of diatoms and chrysophycean algae do not possess____________?
a. Chloryphyllpigments
b. Enzymes for photolysis
c. Defined grana and stroma
d. Carotenes with chlorophylls
Answer- Defined grana and stroma
Que- Oil body is found in the cells of___________?
a. Diatoms
b. Slime moulds
c. Chlorophycean forms
d. None of the these
Answer- Diatoms
Que- Diatoms stay afloat due to___________?
a. Flagella
b. Stored lpids
c. Pseudopodia
d. All of these
Answer- Stored lpids
Que- Diatomaceous earth is used for making __________?
a. Fertilizers
b. Weedicides
c. Insecticides
d. Fire proof bricks
Answer- Fire proof bricks
Que- Locomotion in diatoms is carried out with the help of__________?
a. Valve
b. Raphe
c. Pseudopodium
d. Cilia or flagella
Answer- Raphe
Que- Golden brown colour of diatoms is due to presence of__________?
a. Mycoxanthin, mucoxanthin and myxoxanthophylls
b. Alpha and beta carotenes and myxoxanthin
c. Fucoxanthin, diatoxanthin, diadinoxanthin
d. None of the above
Answer- Fucoxanthin, diatoxanthin, diadinoxanthin
Que- Which of the following is not nocturnal?
a. Bedbug
b. Mosquito
c. Butterfly
d. Cockroach
Answer- Butterfly
Que- Which one of these is an insect?
a. Mite
b. Spider
c. Moth
d. Scorpion
Answer- Moth
Que- A moth is closely related to_________?
a. Wasp
b. Beetle
c. Cricket
d. Butterfly
Answer- Butterfly
Que- Which one of these is a set of useful insects?
a. Sandfly , butterfly, hoeybee
b. Sikmoth, honeybee, locust
c. Honeybee, silkmoth, tsetse fly
d. Honeybee , lac insect, cochineal insect
Answer- Honeybee , lac insect, cochineal insect
Que- Which of the following organ is responsible for blood filtration:
a. Liver
b. Kidney
c. Lungs
d. Heart
Answer- Kidney
Que- Which of the following organ is responsible for body metabolism?
a. Kidney
b. Liver
c. Lungs
d. Heart
Answer- Liver
Que- The part of the brain that connects the two hemispheres of the brain is called____________?
a. Corpus callosum
b. Medulla oblongata
c. Cerebral cortex
d. Cerebellum
Answer- Corpus callosum
Que- In which phase of cell cycle cell organelles are formed?
a. S Phase
b. G1 Phase
c. G2 Phase
d. G0 Phase
Answer- G2 Phase
Que- Vacuoles are fluid filled sacs surrounded by a membrane called__________?
a. tonoplast
b. nuclear membrane
c. cell membrane
d. cell wall
Answer- tonoplast
Que- During the process of cell division which of the following divides first?
a. cytodplasm
b. vacuoles
c. mitochondria
d. nucleus
Answer- nucleus
Que- Which of the following manufactures carbohydrates by the process of photosynthesis?
a. chloroplast
b. chromoplast
c. leucoplast
d. All of these
Answer- chloroplast
Que- which of the following is called protein synthesizing machine?
a. mitochondria
b. nucleus
c. chromosomes
d. ribosomes
Answer- ribosomes
Que- Cell wall is the non living , outermost boundary of__________cell?
a. plant
b. bacterial
c. fungal
d. all the above
Answer- all the above
Que- The light microscope can make the object_________times bigger?
a. 10 times
b. 100 times
c. 1000 times
d. 10000 times
Answer- 1000 times
Que- Which of the following is a selectively permeable membrane?
a. cell wall
b. cytoplasm
c. cell membrane
d. none of these
Answer- cell membrane
Que- Splitting of glucose relates to_________?
a. respiration
b. photorespiration
c. glycolysis
d. pyruvic acid
Answer- glycolysis
Que- Artherosclerosis is a major condition leading to__________?
a. heart attack
b. hypertension
c. stroke
d. tumor
Answer- heart attack
Que- Shrinkage of protoplast due to exosmosis of water is__________?
a. imbibition
b. plasmolysis
c. deplasmolysis
d. adhesion
Answer- plasmolysis
Que- The normal pH of human blood is____________?
a. 6.4
b. 7.0
c. 7.4
d. 7.5
Answer- 7.4