Question # 1

Predation is a process of

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Prey

Predator

Prey and predator

None of these

The idea of inheritance of acquired characteristics was presented by

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Margulis

Lamarck

Linnaeus

Cuvier

Which one of the following always contains DNA?

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Centriole

Lysosome

Golgi apparatus

Mitochondrion

When we study a single population relationship to its environment it will be called:

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Mycology

Synecology

Autecology

Ornithology

The hormone which is not secreted by anterior lobe of pituitary is

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GH

ICSH

Prolactin

TRF

About 20 years ago what was the rate at which human population was increasing

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1%

2%

3%

5%

The type of association between two organisms, which brings benefit to both the organisms is called

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Commensalism

Predation

Mutualism

Parasitism

Succinic acid differs from malonic acid by

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OH

CH₂

CH₃

CHO

According to endosymbiont hypothesis the aerobic bacteria developed into

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Lysosomes

Mitachondria

Chloroplast

Nucleus

Primary succession that starts in a pond is called:

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Hydrosere

Derosere

Xerosere

Aquasure

------------------- are the autotrophs that capture and bring light energy into ecosystem

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Decomposers

Algae

Producers

None o these

The inhibitor having structural similarity with substrate is

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Irreversible inhibitor

Reversible inhibitor

Competitive inhibitor

Noncompetitive inhibitor

An animal which captures and readily kills living animals for its food is known as

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Parasite

Predator

Scavenger

Consumer

Which of the following things were not collected by Darwin?

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Specimens of diverse faunas and floras of south America

South American fossils

13 types of finches

Turtles

Plant and animals replace the earlier ones in a way of

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Community relay

Succession

Predecessors

All of these

The abiotic components are also termed as

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Chemical factors

Physical factors

Biological factors

A and B

Ultimate source of all changes is :

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Mutation

Genetic drift

Evolution

Migration

Skeleton of echinoderms is originated from

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Ectoderm

Endoderm

Mesoderm

Epidermis

Limnetic phytoplanktons include:

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Mossses

Algea

Bacteria

Cyanobacteria

The chemical elements essential for life in living organisms are called:

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Biogenic elements

Nutrient elements

Both a & b

Genetic elements

Urine is preferably used as a vehicle for biotechnology product than:

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Blood

Milk

Plasma

Tissue fluid

A group of interbreeding individuals of same species occurring together in space and time is called:

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Population

Community

Species

Clan

One poles the average temperature is:

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At freezing point

Below freezing point

Above freezing point

More then 5∘C

If you are studying the structure of HIV , you will observe spikes associated with the

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Core

Capsid

Envelope

Genome

Rh factor or antigen was first studied in

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Man

Owl

Monkey

Fish

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

Which of the following is not an enzyme of HIV

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Reverse transcriptase

Integerase

Protease

Ligase

One mechanism of temperature regulation was developed by land plans and animals by developing.

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Brak and skin

Vascular tissues and circulatory system

Cambium and excretory system

Vascular tissue and respiratory system

On an average, there are 50 or more thylakoids piled to form one

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Intergranum

Crista

Granum

F_{_1}particle

The relationship of a single population towards its environment is called

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Ecology

Synecology

Autoecology

All of foregoing

The correct sequence in a food chain is

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Mice - green plants - snake - hawke

Green plants - mice - snake - hawk

Mice - snake - green plants - hawk

Green plants - hawk - snake - mice

Glyosidic bond is formed by the

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Removal of Oxygen

Addition of Water

Addition of Oxygen

Removal of Water

Which of the following is an example of ribozyme

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Aminopeptidase

Pancreatic lipase

Peptidyl transferase

Cytochrome oxidase

Which component of the cell is mainly concerned with production of cell secretions?

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Ribosome

Cytoskeleton

Mitochondria

Golgi

Which is not a seral stage

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Climax forest

Moss

Shrub

None

Nucleotide is to ___ as amino acid is to ___

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Nucleic acids, Lipids

Nucleic acids, Proteins

Proteins, Lipids

Lipids, proteins

Tritanopia is blindness of

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Red Colour

Green Colour

Blue Colour

Pink Colour

The study of relationship of an organisms to their environment is known is

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Biology

Ecology

Zoology

Mycology

--------- Develop the basic formwork of plasma membrane:

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Phospholipids

Glycoproteins

Glycolipids

The desert ecosystem of western punjab is called:

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Thar

Thal

Alpine

Boreal

In temperate grassland the rate primary production is about:

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700 - 1400 g/m²

700 - 1600 g/m²

700 -1800 g/m²

700 - 1500 g/m²

About ______% if the total energy from the sun is trapped by the producers in an ecosystem

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0.5

1.0

1.5

2.0

Enzyme works to its maximum capacity

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At high temperature

At low temperature

At moderate temperature

At optimum temperature

Biosphere is spread out over the surface of planet earth extending about:

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2/4 km

4/6 km

6/8 km

8/10 km

Succession ends with a diverse and relatively stable:

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Xerosere

Derosere

Pioneers

Climax community

Following substances can act as inhibitors, except

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Cyanide

Antimetabolites

Antibodies

Poisons

Green, plants are basically:

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Producers

Consumers

Decomposers

None of these

Snails are the intermediate hosts of

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Fasciola hepatica

Schistoma

Taenia solium

Ancyclosoma duodenale

____can be checked by increasing substrate concentration

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Reversible inhibition

Irreversible inhibition

Noncompetitive inhibition

Competitive inhibition

What are the environmental buffers?

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Trees

Animals

Factories

Microbes

Which of the following is not true about abiotic components

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Water

Temperature

Consumers

Gravity

Insect and flower relationship is the example of

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Mutualism

Commensalism

Parasitism

All of above

The chances of which hemophilia is equal in males & females

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A

B

C

All

Following enzymes are indicating the specificity of their action in their names, except

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Sucrase

Amylase

Pepsin

Lipase

Fungi are

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Producers

Consumers

Decomposers

None of the above

Osteoporosis is caused by lack of

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ADH

Melanin

Estrogen

STH

The oxygen concentration in the air is maintained by the green plants which release it during

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Fermentation

Respiration

Photosynthesis

Chemosynthesis

The ecosystem present on land or soil is called

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Terrestrial ecosystem

Lithospheric ecosystem

A and B

None

Tritanopia is blindness of :

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Red Colour

Green Colour

Blue Colour

Pink Colour

In temperature deciduous forest the range of temperature is form:

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0∘C - 30∘C

4∘C - 30∘C

4∘C - 25∘C

4∘C - 40∘C

The nutrients in aquatic ecosystem tends to be concentrated near the

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Bottom

Surface

Center of total depth

10 feet below the surface

Which of the following are suicidal bags

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Lysosomes

Ribosomes

Centriole

Mitochondria

The amount of energy left after plants have met their respiratory needs shows up the plant:

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Not productivity

Gross productivity

Secondary productivity

Bio energy

In deuterostomes mesoderm is derived from wall of developing

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Coelom

Heart

Archenteron

Blastopore

The nutrient cycles are also called:

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Biochemical cycles

Geochemical cycles

Biogeochemical cycles

Elemental cycles

Secondary consumes form ______ trophic level

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First

Second

Third

None of above

Pick up the correct statement about the following figure:

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2.Nucleolus, 4.Golgi apparatus, 10.cytoplasm, 7.Mitochondria

2.Nucleolus, 7.cell membrane, 9.cytoplasm, 7.Mitochondria

2.Nucleolus, 4.Golgi apparatus, 5.cytoplasm, 7.Mitochondria

2.Nucleolus, 4.Golgi apparatus, 10.cytoplasm, 7.Centriole

The animal that is caught and eaten is called:

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Prey

Host

Victim

Quarry

The chief reservoir of nitrogen is the

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Atmosphere

Water

Soil

Rain

Both meissner’s and pacinian corpuscles have____ nerve endings

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Spiral

Encapsulated

Free

Deep

Layer of earth where life is present is called

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Hydrosphere

Lithosphere

Biosphere

Topography

The sucessions started on water is called as

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Hydrosere

Xerosere

Derosere

None of the above

Function of succinic dehydrogenase is aided by

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Metal ion

Vitamin

NAD

FAD

Animal cells differ from plant cells in having

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80 S ribosome

Chloroplasts

Mitochondria

Centrioles

Which of the following traist is transmitted directly from an affected to only its sons?

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autosomal

X-linked

Y-linked

X and Y linked

Viruses are not resistant to

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Interferons

Penicillin

Streptomycin

Any antibiotic

Animals involved in the construction of corals are

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Polyps

Medusae

Gonozooids

None

Allele for whiteness in Drosophila is :

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Recessive

Codominant

Dominant

Partially Dominant

______ is a group of interbreeding individuals occurring together in space and time

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Population

Species

Community

All of above

Ribozyme is found in

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Mitochondria

Cytoplasm

Lysosomes

Ribosomes

Which can convert glucose to glucose 6 phosphate

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Hexokinase

Glucokinase

Phospho fructokinase

Both a & b