Question # 1

Ray florets have ------------ flowers

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Tubular

Ligulate

Round

None

The water culture technique for growing plants with their roots in a recirculating water solution is

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Hydroponics

Sericulture

Hygoculture

Hydroculture

-----------harmone increase tendency of plants to produce a male flower

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Auxins

Gibberllins

Ethylene

Abcissic acid

As a result of the union of anther and pistil this structure is formed

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Polonium

Gynoestigium

Corpusculum

Translator

Fungi are classified in a number of groups which is one of the following groups that does not show sexual reproduction

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Zygomycota

Ascomycota

Basidiomycota

Deuteromycota

Botanical name of tomato

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Solanumtuberosum

Lycopersicumesculentum

Petunia Alba

Solanumnigrum

The botanical name of Ajwain is

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Ocimum sanctum

Ocimumbasilicum

Methe sylvestris

Coleus aromaticus

The species which is at the threat of danger of extinction is called

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Endangered species

Extinct species

Threatened species

All of these

The majority of plants of this family provides edible fruits

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Rosaceae

Labiaceae

Ranunculaceae

Malvaceae

He is regarded as the father of modern taxonomy

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Robert Thorne

Armen Takhtajan

Linneous

Arthur Conquist

Certain hornlike projections are given out from the back of anthers

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Translator

Cuculli

Gynoestigium

Pollinium

Fungi cause certain animal diseases. How Ringworm and athlete's foot are caused by fungi

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Imperfect fungi

Aspergillus fumigatus

Purple ergot

Soil contaminated with bird's feces

In fungi asexual reproduction occurs by all these method except which one

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Spores

Conidia

Binary fission

Budding

While studying the components of an ecosystem what is the biotic component in all these examples?

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Gravity

Topography

Consumers

Temperature

Plants of family asclepiadaceae are used to treat

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Gastric disorders

Skin disorders

Maternal disorders

None of these

A special protein that generates voltage across a membrane is called;

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Electrochemical protein

Electromagnetic Protein

Electrogenic protein

Proteogenic protein

Study of relationship of animals to their environment is termed as

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Ecology

Eco

System

Biotic components

Family ------------ incluldes 100 genera and 850 species

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Compositeae

Crucifereae

Labiateae

Cucurbitaceae

In fishes, gill pouches develop into

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Gills

Threat & Middle ear

Eustachian tubes

Both A and B

The group of enzymes that bring about non-hydrolytic addition or removal of substrate are

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Hydrolase

Protease

Heptase

Dehydrogenase

If sex chromosomes are more than two in an individual, these are called as

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Multiple sex chromosomes

Compound sex chromosomes

Autosome + sex chromosomes

Pseudo autosome

Plants of Euphorbiaceae contain the vitamin

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A

B

C

D

While studying a community er come across three levels of organizations which include all of these except

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Individual

Population

Community

Species

The species with the same specific epithet cannot occur in the genus. If this happens, they are called

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Homonym

Synonym

Legitimate

Illegitimate

Saccharomyces cervisiae is the most commonly exploited yeast which feature highlights their economic improtance

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Asexual reproduction

Unicellular

They ferment carbohydrate to ethanol and carbon dioxide

Sexual reproduction

The criteria of the classification are the ----------- on which the classification is based.

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Groups

Divisions

Characters

Orders

If two substances move in different directions, through the membrane, the contransport is called;

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Antiplast

Heteroplast

Apoplast

None

Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of hyphal tips called as

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Rhizoids

Constricting ring

Haustoria

Hyphae

Cucumissativusis the botanical name of

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Bitter gourd

Vegetable marrow

Cucumber

Watermelon

Disease in living organisms, which are caused by parasites called as

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Predation

Symbiosis

Infestations

Mutualism

The genus name and the specific epithet together

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Scientific name

Nomenclature

Binomial

Specific name

Which one of the following is a biotic component?

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Atmosphere

Water

Fungi

Soil

Adolph Engler classified the whole plant kingdom on the basis of

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Natural

Artificial

Phylogenetic

Modern

The characters of constant nature which are used to define a group are

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Synthetic

Systematic

Variations

Diagnostic

The anthers are two celled and pollen grains are in the form of tetrads and are found in the sac like sturctures

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Polonium

Gynoestigium

Corpusculum

Translator

Members of compositeae are

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Topical

Sub-tropical

Temperate

Cosmopolitan

Gene pool is the total aggregate of gene a ----------- at any one time.

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Individual

Population

DNA

Chromosome

Seed of rosaceae is

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Edosperm

Endosperm oily

Non endosperm

None

Bark of Quillajasaponariais used in perparing

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Fiber

Dye

Paper

Shampoos

Fruits of Emblicaofficinalis are used for making

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Oil

Perfume

Hair dye

All of these

It is a duplicate specimen of holotype collected as same place and time

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Holotype

Isotype

Lectotype

Syntype

A clitellum is present in the members of the class Polychaeta is

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Hirudinea.

Polychaeta.

Oligochaeta.

IIirudinea and Oligochaeta

Scientific name of fish tape worm is

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Clonorchis sinensis

Schistosoma

Diphyllobothrium latum

Fasciola hepatica

The Gastropoda and the Cephalopoda form a clade characterized by a dorsoventrally elongate body and shell coiling.

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True

False

None of Above

--------------- are the characters that have arisen since common ancestory with the group

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Homologous characters

Derived characters

Synapomorphies

Both B and C

Where would you look for a kinorhynch?

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a marine environment

a freshwater environment

on land that is relatively moist

on land that is relatively dry

Ctenophorans and Anthozoans lie in

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Bilateral symmetry

Radial Symmetry

Asymmetry

Pentaradial symmetry

All of the following mollusc characters would be found in a member of the class Bivalvia except one. Select the exception.

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Visceral mass

head-foot

mantle cavity

radula

Members of which of the following mollusc classed would be characterized by a shell consisting of 8 plates?

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Aplacophora

Polyplacophora

Monoplacophora

Cephalopoda

Which of the following is true of the mantel cavity of a bivalve?

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It is the area where water circulates during feeding and gas exchange

It is the space between the mantle and the shell

It is the space between the pericardium and the heart

It is the space where blood circulates before being returned to the heart

Which of the following phyla are not pseudocoelomate?

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Acanthocephala

Rotifera

Polychaeta

Nematoda

Which of the following is a distinct feature that occurs in all pseudocoelomate phyla?

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pseudocoelom

adhesive glands

cuticle

none of the above

Intermediate host for fish tape worm is

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Pig

Copepod

Snail

Humans

Most marine protozoa have solute concentration ------------ to that of their environment

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Hypertonic

Hypotonic

similar

In phytomastigophorean each chloroplast has a structure -------------- which stores and synthesizes polysaccharides.

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Stigma

Pyrenoid

Euglenoid

None of above

All of the following are characteristics of the phylum nematoda except?

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triploblastic, bilateral, vermiform

cuticles are not shed

complete digestive tract with a mouth surrounded by lips bearing sense organs

body wall has only longitudinal

The majority of rotifers inhabit freshwaters

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True

False

none of the above

Characteristics of the phylum Rotifera include all of the following except

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a well-developed cuticle

absence of protonephridia

parthenogenesis is common

triploblastic, bilateral, unsegmented, pseudocoelomate.

The annelid class whose members are mostly marine is

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Hirudinea.

Oligochaeta.

Polychaeta.

Clitellata.

Earthworms belong to the annelid subclass

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Hirudinea.

Chaetognatha.

Polychaeta.

Oligochaeta.

Water exits the mantle cavity of a bivalve through the ------------ and the excurrent opening

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water tube

incurrent opening

suprabranchial chamber

pericardial cavity

Members of class phytomastigophoreans are

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Dioecious

Monoeious

Both A and B are correct

None of above

Polymorphism is characteristic of phylum

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phylum Nematoda

phylum Annelida

phylum Cnidaria

None of above

All are the characteristics of phylum cnidaria except

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Presence of mesoglea

Contain mesenchyme

gastrovascular cavity

contain nematocysts

The arrangement of structures in fives around a radial animal is called

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Bilateral symmetry

Radial Symmetry

Pentaradial Symmetry

Asymmetr

Which one is not a characteristic habitat of Archaea?

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Acidic environment

Fresh water

High salt

Ocean floor

A distinctive feature of members of the subclass Hirudinea is

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Parapodia.

Tentacles.

Anterior and Posterior suckers.

Palps.

Nematodes live in both aquatic and terrestrial environments

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True

False

none of the above

The operculum aids in both respiration and reproduction in gastropods

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True

False

None of Above

Which one of the following do not lie in phylum ciliophora?

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Paramyxa

Vorticella

Paramecium

Balantidium

Primary host for Fasciola hepatica is

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Snail

Sheep

Cattle

Both A and B are correct

Members of the class Polyplacophora include the chitons, which are found on hard substrates in marine habitats.

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True

False

None of above

Which of the following is true of the visceral mass of a mollusc?

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It contains the gills

It secretes the shell

It is used in locomotion

It contains gonads and digestive glands

------------- harbours the sexual stages of the parasite

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Intermediate host

Definitive host

None of above

The molluscs are most closely related to the

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Annelids

Enhinoderms

Arthropods.

Chordates

Acanthocephalans are also known as spiny-headed worms because of their spiny

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True

False

none of the above

The scientific name of the common pinworm is

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Ascaris lumbricoides.

Enterobius vermicularis

Trichinella spiralis.

Wuchereria bancrofti

Of the following, which is the most recently described pseudocoelomate animal phylum?

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Pariapulida

Acanthocephala

Loricifera

Nematomorpha

Which of the following is true of the radula of most molluscs?

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It is used in reproduction

It is used in excretion

It is used in rasping food

It is used in gas exchange

Labial palps of bivalves sort filtered food particles delivered by cilia lining the ventral margin of the gills.

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True

False

None of Above

Following are the chharacteristics of phylum Annelida except

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Distinct head

parapodia

Hermaphrodite

Thoracic appendages

Cephalopods rely on olfactory senses for detecting prey

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True

False

None of above