Biology - Diversity in Living World
Exam Duration: 45 Mins Total Questions : 30
Read the following five statements(I to V) and select the option with all correct statements:
I. Mosses and lichens are the first organisms to colonise a bare rock.
II. Selaginella is a homosporous pteridophyte.
III. Coralloid roots in Cycas have VAM.
IV. Main plant body in bryophytes is gametophytic,where as in pteridophytes it is sporophytic.
V. In gymnosperms male and female gametophytes are present within sporangia located on sporophyte.
- (a)
I, III and IV
- (b)
II,III and IV
- (c)
I, IV and V
- (d)
II, III and V
Match the name of the animals (column I) with one charactristics (column II) and the phylim?class (collumn III) to which it belongs.
- (a)
column I column II column III petromyzon Ectoparasite Cyclostomata - (b)
column I column II column III Ichthyophis terrestrial reptilia - (c)
column I column II column III Limulus body covered by chitinous exoskeleton pisces - (d)
column I column II column III Adamsia Radially symmetrical porifera
In diatoms, the nucleus generally lies in
- (a)
epivalve
- (b)
hypovalve
- (c)
central vacuole
- (d)
pripheral cytoplasm
Viruses usually infect whole plant except
- (a)
root
- (b)
leaves
- (c)
stem
- (d)
apical meristems
Protein consists mainly of
- (a)
protein
- (b)
DNA
- (c)
RNA
- (d)
Both (b) and (c)
In Paramecium, the coordinated movement of row of cilia causes the water laiden with food to be
- (a)
expelled out from the cell
- (b)
steered into the gullet
- (c)
cycled into the protoplasm
- (d)
None of the above
After drying, a bath sponge contains
- (a)
hold fast
- (b)
tentacles
- (c)
spicules
- (d)
spongin fibres
Polyp phase is absent in
- (a)
Hydra
- (b)
Aurelia
- (c)
Physalia
- (d)
Obelia
The smallest bird is
- (a)
Cuban bee
- (b)
Sun bird
- (c)
Passer
- (d)
None of these
Birds differ from bats in the absence of
- (a)
4 chambered heart
- (b)
homoiothermy
- (c)
diaphragm
- (d)
tracheae
The snakes having large head shields and fangs is
- (a)
Natrix
- (b)
Lycodon
- (c)
Bungarus
- (d)
Typhlops
Protistan protozoan having nuclear dimorphism is
- (a)
Amoeba proteus
- (b)
Paramecium caudatum
- (c)
Plasmodium vivax
- (d)
Trypanosoma gambiense
Body of molluscs is covered by
- (a)
chitinous exoskeleton
- (b)
siliceous spicules
- (c)
calcareous shell
- (d)
pellicle
Vaccination against malaria is not possible because
- (a)
Plasmodium produces minute bodies
- (b)
Plasmodium produces antitoxins
- (c)
It does not produce antibodies antitoxins
- (d)
None of the above
The group of individuals with similar morphological characters and are able to breed among themselves and produce their own kind is known as
- (a)
Genus
- (b)
Family
- (c)
Species
- (d)
Order
Fungi that absorb soluble organic matter from dead substrates are called as
- (a)
parasites
- (b)
symbionts
- (c)
saprophytes
- (d)
predators
Fusion Between one large, non-motile female gamate and a smaller motile male gamete is termed as
- (a)
isogamous
- (b)
anisogamous
- (c)
oogamous
- (d)
hetrospores
The international size of herbarium sheet is
- (a)
41\(\times\)29 cm
- (b)
40 x 30 cm
- (c)
39\(\times\)28cm
- (d)
43\(\times\)28cm
In Nostoc, the specialised cells in which the atmospheric nitrogen fixed are called as
- (a)
heterocysts
- (b)
sporocysts
- (c)
homocysts
- (d)
all the above
Mycoplasma is insensitive to
- (a)
Penicillin
- (b)
Streptomycin
- (c)
Terramycin
- (d)
Chloramphenicol
Presence of zoospores is the feature of
- (a)
Chlamydomonas
- (b)
Porphyra
- (c)
Batrachospermum
- (d)
Spirogyra
Assertion (A) Periplaneta americana is nocturnal, omnivorous, household pest.
Reason (R) It is because it acts as scavenger.
- (a)
A is true, but R is false
- (b)
A is false, but R is true
- (c)
Both A and Rare true and R is correct explanation of A
- (d)
Both A and R are true, but R is not correct explanation of ACBXE
Most names in biological nomenclature of living organisms are taken from which language?
- (a)
Hindi
- (b)
Latin
- (c)
German
- (d)
French
Stinging capsules (nematocysts) are found in
- (a)
Scypha and brain coral
- (b)
Cliona and Chalina
- (c)
sea pen and sea fan
- (d)
Grantia and Velella.
Red tides in warm coastal water develop due to the abundance of
- (a)
dinoflagellates
- (b)
euglenoids
- (c)
diatoms and desmids
- (d)
slime moulds.
Read the given statements and select the correct option.
Statement 1: Urochordates and cephalochordates are often called invertebrate chordates.
Statement 2: They are a connecting link between the invertebrates and the chordates.
- (a)
Both statements 1 and 2 are correct.
- (b)
Statement 1 is correct but statement 2 is incorrect
- (c)
Statement 1 is incorrect but statement 2 is correct
- (d)
Both statements 1 and 2 are incorrect
Term used for the closed ascocarp is
- (a)
apothecium
- (b)
amphithecium
- (c)
endothecium
- (d)
cleistothecium.
Artificial systems gave equal weightage to vegetative and sexual characteristics; this is not acceptable because often___________characters are more easily affected by environment.
- (a)
vegetative
- (b)
sexual
- (c)
anatomical
- (d)
physiological
Gametangial copulation act of sexual reproduction occurs in
- (a)
Oomycetes
- (b)
ascomycetes
- (c)
Basidiomycetes
- (d)
Zygomycetes
Which of the following is odd one from the following about liver worts?
- (a)
Foot, Seta, Capsule
- (b)
Spore, Archegonium, Antheridum
- (c)
Protonema, Primary protonema & Secondary protonema
- (d)
Parenchyma, Gemmae, Scales