Question # 1

Basically, all animals depend on plants for their:

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Living

Food

Life

Respiration

By adding _______in neutral pH, we get the optimum pH of pancreatic lipase

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1

2

3

4

The optimum temperature for most of the enzymes in human body is

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37 ^oC

35^oC

37 ^oF

98.6^oC

Lichens are dual organisms composed of symbiotic association of algae living within a fungus:

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Mycelium

Sporangium

Hyphae

Rhizophore

On poles, the average temperature is

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Zero°C

5°C

Below freezing point

None

The study of a single population's relationship to its environment will be called as

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Autecology

Synecology

Ecology

Biogeopraphy

Fresh water ecosystem cover the land only:

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2%

3%

4%

1%

Most nitrogen moves from the soil into the roots in the form of:

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Nitrogen gas

Nitrites

Ammonia

Nitrates

Which of the following is dimer of glucose

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Sucrose

Fructose

Maltose

Cellulose

Most unifying characteristics of all types of cells is

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Cell membrane

Nucleus

Ribosomes

S.E.R

The major unit of ecology is:

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Biosphere

Ecosystem

Community

Population

Deficiency of sex hormones in adults results in

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Sexual immaturity

Mortality

UTI

sterility

An isolated virus is not considered living, since it

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Separates into two inert parts

Cannot metabolize

Rapidly loses its genome

It coated with an air tight shield

It is not a symptom of AIDS

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Swollen lymph nodes

Loss of immunity

Swollen neck

Pneumonia

Heterotrophic organisms are basically:

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Producers

Consumers

Producer and consumers

None of these

Blood pressure is also an example of _______ trait

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Multifactorial

Qualitative

Single genic

Both a & b

DNA of non-virulent phage is

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Provirus

Prophage

Both

None

Formation of ES complex activates the______ site of an enzyme

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Active

Binding

Catalytic

Allosteric

Animals devoid of respiratory, excretory and circulatory organs are

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Tapeworms

Sponges

Earthworm

Live fluke

Degenerated testes are present in abdomen in which of these cases

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Down's syndrome

Klinefelter's sysndrome

Turner's syndrome

Testicular ferminization

The rough endoplasmic reticulum is involved in

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Synthesis of proteins

Storage Of Ca+₂ ions

Synthesis of lipids

Detoxification of drugs

The body of a Hydra can be divided in two equal halves vertically in

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One plane only

Two planes

Three planes

Any plane

In hydrospheric ecosystem the exchange material and transfer of energy takes place.

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Within water and air

Within water and land

Within water

Within land and air

Patient of AIDS is susceptible to many infections due to

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Severe pneumonia

Swollen lymph nodes

Loss of immune system

All of these

The legume plants, Pea and been are the hosts to symbiont bacteria which inhabit the roots forming root:

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Galls

Nodules

Stones

Papillae

Establishment of new forest at places where no forests existed previously is called

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Reforestation

Afforestration

Deforestration

Both a and b

Tick the biotic (intra-specific) factors:

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Wave action, humidity, light

Colonization,aggregation,parental care

Neutralism,mutualism,predation

Mineral elements, mutualism,parasitism

Lumen of the cristae is the part of

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Inner membrane

Outer membrane

Inner compartment

Outer compartment

Decomposers get their food from

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Soil particles

Dead organic matter

Green plants

Living organisms

Parapodia are organs of locomotion in ……

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Leech

Planaria

Earthworm

Neries

Sickle cell mutation affects

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One beta chain

Both beta chains

Only alpha chain

None of the alpha or beta chain

Isosahedral viruses usually have ___

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10 faces

20 faces

15 faces

5 faces

An ecosystem is made up of three main components:

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The herbivores, carnivores and omnivores

The produces, the consumers and the decomposers

Primary, secondary and tertiary consumers

Producers, herbivores and carnivoers

One poles the average temperature is:

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At freezing point

Below freezing point

Above freezing point

More then 5∘C

Ultimate source of all changes is :

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Mutation

Genetic drift

Evolution

Migration

What will be the risk of heamophilia in sons if father is haemophilic and mother is normal

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0%

20%

25%

50%

Which of the following sugar is abundant in muscle fibres

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Myoglobin

Starch

Glycogen

Oxygen

Causative agent of mysterious brain infection is composed of

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DNA+Protein

RNA+Protein

RNA only

Protein only

The succession started after destruction of an area is called as

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Primary succession

Secondary succession

Tertiary succession

Quartnary succession

Man is

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Primary consumers

Secondary consumers

Tertiary consumers

All of above

Armadillos, the armoured mammals live only in :

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Asia

Europe

America

Africa

How many number of autosomal chromosome pairs are present in human

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22

33

44

46

A symbiotic relationship that benefits one species & neither helps nor harms the other is called

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Mycorrihza

Symbiosis

Commensalism

Mutualism

The idea of inheritance of acquired characteristics was presented by

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Margulis

Lamarck

Linnaeus

Cuvier

Which of the following is not an enzyme of HIV

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Reverse transcriptase

Integerase

Protease

Ligase

Water changes its temperature:

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Faster than air

Same as air

Slower than air

Sometime slower and sometimes faster

An organism of the lineage of animals in which the blastopore of the developing embryo becomes the anus, while a second opening becomes the mouth called:

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Triploblastic

Protostome

Diploblastic

Deuterostome

In sickle cell beta chain glutamic acid is replaced by valine which is sixth amino acid from

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N-Terminal

C-Terminal

R-Terminal

H-Terminal

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

An association between certain fungi and the roots of plants growing in acid soil is:

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Lichens

Predation

Mycorrhiza

Commensalism

The principal stages of this cycle are

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Ammonification

Nitrification

Assimilation

All of above

In an ecosystem sheep and rabbits are examples of

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Producers

Predators

Grazers

Saprophytes

They may also control some long term changes

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Enzymes

Neurons

Hormones

CNS

Which of the following is true about mesoglea

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Acellular

Mesodermal

Cellular

Multicellular

A change in one or more bases of DNA, which results in the formation of an abnormal protein is

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Moulting

Transformation

Mutation

Fission

Allosteric enzymes have ___ major sites

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1

2

3

4

Which one of the following always contains DNA?

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Centriole

Lysosome

Golgi apparatus

Mitochondrion

Non-neural cells which encapsule the axon of neurons are

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Microglial

Microbodies

Schwann cells

Companion cells

Which is not a seral stage

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Climax forest

Moss

Shrub

None

A phenotype which can't be expressed in heterozygous state but can only be expressed other in homo or hemi form, would be

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Dominant

Bombay

Recessive

Ordinary

Elements required in large amount are called

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Micronutrient

Macronutrient

Organic elements

Inorganic elements

Genetic basis of ABO blood group system was explained by:

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Landsteiner

Levine

Bernstein

Carl Correns

Which of the following is not affected by enzymes

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Nature and properties of end products

Nature and properties of reactants

Speed of biochemical reaction

Efficiency of biochemical reaction

In 1917, Joseph Grinnell an American ornithologist first proposed the term niche in:

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Taxonomy

Neurology

Ecology

Embryology

In free state Glucose is present in:

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Grapes

Dates

Figs

All Fruits

Which of the following is not the true about predation

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Prey increases by increasing the predation

Predation increases by increasing the prey

Prey decreases by increasing the predation

Prey must follow the predation

Phosphorylation of glucose molecule in glycolysis is carried out by

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ATPase

Kinase

Isomerase

Transferase

Succulent plants are

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Xerophytes

Mesophytes

Hydrophytes

None of above

Which disease is due to nutritional deficiency

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Scurvy

Diabetes

Herpes

Diphtheria

The parasite that live outside the body of the host is called as

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Endoparasite

Ectoparasite

Outer parasite

All of above

When Fructose form ring structure, It is

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6 Cornered

5 cornered

4 cornered

3 cornered

The ecosystem consists of interacting components,

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Biotic

Abiotic

Bioic and Abiotic

None of these

Pick up non-membranous organelle

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Lysosomes

Ribosomes

Centriole

B and C

Nicotinamide adenine dinucleotide is an example of

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Cofactor

Coenzyme

Prosthetic group

Nucleotide

These micro-organisms use the proteins and amino acids and release excess of ammonia (NH₃) or ammonium ions (NH₄). This process is known as

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Ammonification

Nitrification

Assimilation

All of above

When a haemophilic carrier woman marries a normal man, who among her offspring may be affected

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all her children

all her daughter

half of her daughter

half of her sons

Coniferous forests located at high latitude are called

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Boreal

Taiga

Tundra

Alpine

Who for the first time found white eye mutant in drosophila ?

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Morgan

Bridges

Correns

De Varies

Any ecosystem is made up of three components like:

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Producers, consumers, and predators

Producers, consumers and grazers

Producers, consumers and decomposers

Producers, grazers and composers

A process in which one organism get benefit from the relationship is known as

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Grazing

Commensalism

Symbiosis

Mutualism

Dandruff is caused by

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Algae

Bacteria

Fungi

Virus