Question # 1

Cohesion theory of ascent of sap is proposed by

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Zimmernmann

John jolly

Dixon

Both a & b

In an ecosystem Green photosynthetic plants, which capture and bring light energy into ecosystem are termed as

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Consumers

Decomposers

Producers

Parasites

Why molds can grow on oranges and jelly kept in refrigerator where generally bacteria cannot reach

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They are well adapted to live on land

Hyphae are modified

They can tolerate temperature extremes minus 5 degree centigrade below freezing and 50 degree centigrade or more

They have rhizoids

Botanical name of tomato

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Solanumtuberosum

Lycopersicumesculentum

Petunia Alba

Solanumnigrum

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

Green color blindness is called

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Parotanopia

Denteranopia

Tritanopia

Non of these

Mycorrhiza is an association between roots of plants growing in acid soil and certain fungi to which relation it belongs

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Symbiosis

Commensalism

Grazing

Grazers

The phenomenon of interference / hide the effect of one gene present at one locus by the other gene present at other locus is called

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Epistasis

Crossing over

Gene linkage

Synapsis

Cytochrome 'c' found is all aerobic species is a respiratory

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Carbohydrate

Protein

Co-enzyme

Vitamin

The system of classification that reflects the evolution

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Modern

Phylogenetic

Polygenic

Natural

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

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Tubular

Ligulate

Round

None

When the leaves fails to produce normal amounts of chlorophyll, the disease is

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Apoptosis

Chlorosis

Chlorination

Necrosis

The botanical name of Kala Zira is

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Nigella sativa

Clematyustriloba

Ranunculus aquatalis

Delphinium ajasis

The largest genus of family Solanaceae is

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Solanum

Capsicum

Lyceum

Atropa

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

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Gravity

Topography

Consumers

Temperature

Males suffering from Jacobs's syndrome have sex chromosomes

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XXX

XO

XXY

XYY

Thin layer of earth in which all living organism exist is known as

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Habitat

Niche

Biosphere

Ecological niche

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

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Antiplast

Heteroplast

Apoplast

None

The present international code of botanical nomenclature consists of ---------- rules.

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Phylogenetic system

Nomenclature type

Specific name

Common names

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

Natural system of classification is based on characters

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Reproductive and anatomical

Morphological and anatomical

Morphological and reproductive

Vegetative and reproductive

Adolph Engler classified the whole plant kingdom on the basis of

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Natural

Artificial

Phylogenetic

Modern

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

Apple is a member of family

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Rasaceae

Ranunculaceae

Labiaceae

Malvaceae

Which of the following can be used as evidence of evolutions?

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Comparative embryology

Comparative anatomy

Genetic Code

All of these

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

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Holotype

Isotype

Lectotype

Syntype

He is regarded as the father of modern taxonomy

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Robert Thorne

Armen Takhtajan

Linneous

Arthur Conquist

Which statement is not true about the family Euphorbiaceae

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They are found in arctic regions

They are mainly herbs and shrubs

They are a source of timber

Their seed is endospermic

What are the major decomposers of the biosphere contributing to the recycling of the elements used by living things?

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Saprobic fungi and bacteria

Plants

Animals

Algae

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

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

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Predation

Symbiosis

Infestations

Mutualism

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

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Hydroponics

Sericulture

Hygoculture

Hydroculture

Family labiateae is also called

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Lamiaceae

Labiaceae

Lambitaceae

None

Leaves of ---------- are used for the treatment of asthma

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Datura

Lyecium

Atropa

Solanum

--------- lives for more than two growing seasons

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Binnials

Annuals

Perenials

Bicarpic

Fruits of Emblicaofficinalis are used for making

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Oil

Perfume

Hair dye

All of these

In fishes, gill pouches develop into

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Gills

Threat & Middle ear

Eustachian tubes

Both A and B

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

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Compositeae

Crucifereae

Labiateae

Cucurbitaceae

The non-protein part covalently bonded to enzyme is

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APO-enzyme

Coenzymes

Co-factor

None

In Aerobic respiration, the waste product in plants is produced in the form of

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Uric acid

CO₂

Walter

Ammonia

Both b & c

Largest family of angiosperm

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Crucifereae

Compositeae

Ranunculaceae

Cucurbitaceae

A mosquito is necessary for development of Trichinella spiralis

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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 of the following is not true with respect to nematode reproduction?

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Most nematodes are dioecious

Most nematodes are dimorphic

Males are larger than the females

Gonads lie free in the pseudocoelom.

Subkingdom protozoa consist of --------- separate phyla within the kingdom protista.

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Eight

Six

Five

Seven

The main propulsive structure(s) in the circulatory system of an earthworm is (are)

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Hearts

Dorsal and ventral blood vessels

Seminal vesicles

The typhlosole.

--------------- 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

Presence of metameric segmentation

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Lumbricus

Daphnia

Arenicola

Both A and C are correct

The absence of a shell in the aplacophora is a primitive character in the phylum Mollusca

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True

False

None of Above

Ctenophorans and Anthozoans lie in

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Bilateral symmetry

Radial Symmetry

Asymmetry

Pentaradial symmetry

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

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Hirudinea.

Polychaeta.

Oligochaeta.

IIirudinea and Oligochaeta

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

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Bilateral symmetry

Radial Symmetry

Pentaradial Symmetry

Asymmetr

The approach which makes hypothesis of geneological relationships among monophyletic groups of organisms is

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evolutionary systematic

Phylogenetic systematic

Numarical taxonomy

Both A and C

A regular arrangement of microtubules called --------- underlies the plasma membrane of many protozoa

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Pellicle

mesosomes

peroxisomes

Both A and B are correct

Scientific name of fish tape worm is

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Clonorchis sinensis

Schistosoma

Diphyllobothrium latum

Fasciola hepatica

Nematodes live in both aquatic and terrestrial environments

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True

False

none of the above

Earthworms belong to the annelid subclass

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Hirudinea.

Chaetognatha.

Polychaeta.

Oligochaeta.

Triploblastic is the characteristic of phylum

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Nematoda

Nemerteans

Platyhelminths

Annelida

A ----------- is a developmental stage of a freshwater bivalve that is parasitic on fishes

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veliger

Kinorhynchs.

Acanthocephalans.

Nemerteans.

------------ gave rise to the kingdom protista

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Viruses

Archaea

bacteria

None of above

The scientist who describe a system of classification that distinguished between kingdoms according to cellular organization and mode of nutrition was

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R. M. Kristensen

Carolus Linnaeus

Rebert II. Whittaker

None of above

Members of the gastropod subclass Pulmonata are predominantly freshwater or terrestrial. Their mantle is modified into a lung, which opens to the outside of the mantle cavity through a/an

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Siphon.

Pneumostome.

Umbo.

Operculum

Ascaris lumbricoides is commonly known as the giant intestinal roundworm of humans.

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True

False

none of the above

Primary host for Fasciola hepatica is

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Snail

Sheep

Cattle

Both A and B are correct

All the following are unique to the molluscs except one. Select the exception.

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mantle

shell

visceral mass

head-foot

Which one is not a characteristic habitat of Archaea?

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Acidic environment

Fresh water

High salt

Ocean floor

A ------------- is a mucoid mass that extends to the stomach of gastropods. It contains trapped food particles and is rotated by cilia

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Protostyle

Umbo

Crystalline style

Gastric shield

The molluscs are most closely related to the

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Annelids

Enhinoderms

Arthropods.

Chordates

As protozoa are small, they have --------- surface area in proportion to their volume

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less

Large

Both A and B

The diversity of body forms and lifestyles present in the phylum Mollusca is an excellent example of adaptive radiation

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True

False

None of Above

Arenicola is an example of class

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Oligocheata

Polycheata

Hirudinea

None of above

The annelid class whose members are mostly marine is

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Hirudinea.

Oligochaeta.

Polychaeta.

Clitellata.

The aschelminthis contain organs for gas exchange and circulation.

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True

False

none of the above

A distinctive feature of members of the class Polychaeta is

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Parapodia.

Clitellum.

Annuli.

Absence of setae.

--------------- is a developmental process that occurs in gastropods and results in a 180 degree counterclockwise twisting of the visceral mass and mantle cavity

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Gastrulation

Epiboly

Involution

Torsion

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

Schizogony means

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to emit

to join

to split

None of above

Tsetse files are ------------- host for Trypanosoma brucei, causing sleeping sickness to humans

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Intermediate

Primary host

Definitive host

Both A and C are correct

The major feature which unify aschelminths is

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nervous system.

muscular system.

excretory system.

pseudocoelom.

Most triploblastic animals have an

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tissue system level of organization

colonial level of organization

organ system level of organization

both A and B are correct

All are the characteristics of phylum Apicomplexa except------------------

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Single type of nucleus

Have resistant spores

Apical complex for penetrating host cells

No cilia and flagella

Phylum Rotifera consist of --------- classes.

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two

three

four

five