Question # 1

The term ecology originally was used in 1866 by the German zoologist:

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Charles Eton

Ernst Haeckel

Joseph Grinnell

Carolus linnaeus

The predeter and prey relationship is called as

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Predation

Animes

Parasitism

None of above

Peptidoglycan or murine is a special or distinctive feature of cell wall in

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Algae

Bacteria

Fungi

Plants

Secondary structure is the ultimate structural level of which of the following proteins?

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Trypsin

Insulin

Keratin

Glucose

Genetic basis of ABO blood group system was explained by:

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Landsteiner

Levine

Bernstein

Carl Correns

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

Which of the following sugar is abundant in muscle fibres

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Myoglobin

Starch

Glycogen

Oxygen

Parapodia are organs of locomotion in ……

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Leech

Planaria

Earthworm

Neries

Which one of the following does not refer to mutialism

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Mycorrhiza

Parasitism

Lichen

Bacteria in the gut of cow

Leech is preferably a

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Host

Parasite

Predator

Mutualist

The deficiency of which one of the following is cause of goiter

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Iodine

Calcium

Potassium

Iron

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

It brings about an increase in blood glucose level mainly by its production from glycogen

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Insulin

Glucagon

Cortisol

Aldosterone

It is an animal, but it does not have nerve or muscle tissue. It is neither diploblastic nor triploblastic. It is probably a

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Flatworm

Nematode

Cnidarian

Sponge

Dominant plant species in grassland are:

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Graminoids

Trees

Climbers

Herbs

A common animal of temperate deciduous forests is the:

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Kangaroo

Cat

Leopard

Rhesus Monkey

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

The neuron which has central and peripheral branches is

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Sensory neuron

Motor neuron

Associative neuron

Relay neuron

Plants like cacti store their water in large:

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Collenchyma tissues

Mesenchymal tissues

Parenchyma tissues

Epidermal tissues

Both organisms benefit from the ______ relationship

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Mutualism

Commensalism

Parasitism

All of above

Green photosynthetic plants are

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Producers

Consumers

Decomposers

None of the above

Fungi are

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Producers

Consumers

Decomposers

None of the above

Polytrichum is a

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Lichen

Algae

Liver worts

Moss

Substances cross the cell membrane more easily when they are

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water soluble

protein soluble

alcohol soluble

lipid soluble

Tundra ecosystem is a vast treeless region bordering the:

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Pacific ocean

Atlantic ocean

Arctic ocean

Arabian sea

The enzyme that works best at intermediate pH is

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Pepsin

Chymotrypsin

Sucrase

Pancreatic lipase

Life on earth is affected by both

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Weather and water

Weather and climate

Climate and water

Water and air

Which enzyme deficiency leads to phenylketonuria

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Phenylalanine oxidase

Phenylalanine hydroxylase

Phenylalanine synthase

Phenylalanine carboxylase

The relationships between insects and flowering plants is an example of:

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Parasitism

Predation

Mutualism

None of these

Enzymes present in human body generally have

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Same optimum temperature and optimum pH

Same optimum temperature but different optimum pH

Same optimum pH but different optimum temperature

Different optimum temperature and optimum pH

Part of brain that is involved in learning

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Cerebrum

Thalamus

Cerebellum

Pons

The study of relationship of an organism to their environment is knows as:

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biology

ecology

zoology

mycology

Most unifying characteristics of all types of cells is

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Cell membrane

Nucleus

Ribosomes

S.E.R

Which is incorrect about resting membrane potential

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Na+ ions are ten folds higher outside

2 Na+ move out for 3 K+ move in

K+ ions are twenty folds higher inside

Some k+ ions leak out

Diseases in living organisms caused by parasites are called:

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Infestations

Plaques

Influxes

Swarms

Phylum of asymmetrical animals is

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Nematoda

Platyhelminthes

Cnidaria

Porifera

Nucleotide is to ___ as amino acid is to ___

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Nucleic acids, Lipids

Nucleic acids, Proteins

Proteins, Lipids

Lipids, proteins

Green plants are ______ trophic level

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First

Second

Third

Forth

Which one of the following is an example of commensalism

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Nodulated roots

Remoras attached to sharks

Mycorrhiza

Commensalism

Virus without envelope is

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HIV

Hepatitis B

Polio virus

Hepatatis C

Most of the vectors for spreading important human diseases belong to:

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Radiata

Acoelomates

Pseudocoelomates

Coelomates

Iron, iodine and zinc required by the organisms are said to the:

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Macronutrients

Micronutrients

Moderate nutrients

Assimilation

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

Macronutrients are required by the organisms in:

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Small amount

Large amount

Traces

Never required

The nutrient cycles are also called as

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Biogeochemical cycles

Biochemical cycles

Geo-cycles

All of above

The next to simplest amino acid is

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Alanine

Glycine

Serine

Glutamine

The succession started after destruction of an area is called as

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Primary succession

Secondary succession

Tertiary succession

Quartnary succession

--------------- and --------------- have same number of chromosome

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Man, Chimpanzee

Chimpanzee, Potato

Man, Potato

Potato, Tomato

Chemical nature of spikes present on HIV

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Protein

Carbohydrate

Glycolipid

Glycoprotein

Parasitism is an association between a host and a parasite, which ivolves providing the parasite with:

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Food

Protection

Conditions for its survival

All a, b, c

Which of the following is not an abiotic component

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Atmosphere

Hydrosphere

Lithosphere

Producers

What is trampling

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Eating grasses to roots

Nipping leaves

Overgrazing

Putting pressure on soil to make it compact

Which is incorrect statement about spinal cord

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White matter contains myelinated axons

Grey matter contains non myelinated axons

Grey matter contains cell bodies of sensory neurons

Location of Peripheral nerve is near to spinal cord

The study of different communities (grouping of population) in relation to their environment is called

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Autecology

Synecology

Ecology

Biogeopraphy

Which one of the following is true

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Population is a larger unit than a community

Bioshpere is a smaller unit than a biome

Biome and community are equal units

Biome is a larger unit than population

HIV attaches on cell membrane of T cell at _____ receptor site

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Cd2

Cd4

Cd8

Gp120

In an ecosystem sheep and rabbits are examples of

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Producers

Predators

Grazers

Saprophytes

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

On poles, the average temperature is

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Zero°C

5°C

Below freezing point

None

The animal that is caught and eaten is called:

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Prey

Host

Victim

Quarry

Some ______ years ago human population and conversion of land to agricultural production began

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10,000

40,000

5000

None

Which characteristic is common in both cnidarians and flatworms

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Digestive system with a single opening

Dorsoventrally flattened bodies

Radial symmetry

Flame cells

Fresh water ecosystem cover the land only:

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2%

3%

4%

1%

Which is not the function of glucagon

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Glycogen hydrolysis

Lipolysis

Gluconeogenesis

Protein synthesis

Topography is study of?

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Population

Individula

Earth

birds

The eating of grasses is termed as

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Grassing

Browsing

Eating

None of above

Which element is the most potent source for the depletion of ozone layer

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Chlorine

Fluorine

Carbon

All of them

Major unit of ecology is :

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Ecosystem

Community

Biosphere

Population

The semicircular channels and system of tubes found in cytoplasm are known as

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Ribosomes

Glyoxisomes

E.R

Vacuoles

Both ____ and ____ are detachable cofactors

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Apoenzyme, holoenzyme

Activator, coenzyme

Coenzyme, prosthetic group

Prosthetic group, activator

The green photosynthetic plants, which capture and bring light energy into the ecosystem are:

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Decomposers

Consumers

Producers

Scanvengers

Which of the following is Koshland model

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Active site is rigid

Active site may be molded to précised shape

Position of active site is moveable

None

Which eat consumers

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Predators

Carnivores

Omnivores

All

Biotic components includes all the

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Nonliving components

Living components

Nonliving and living both

None of these

A process in which green plants are eaten by animals is called

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Grazing

Predation

Commensalization

None of these

Root Nodules are the example of

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Predation

Symbiosis

Parasitism

None of above

The study of relationship of a single population to its environment is called:

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Autecology

Synecology

Both a & b

None

A group of interbreeding individual occurring in space and times is called:

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Community

Population

Generation

Kingdom

Tritanopia is blindness of

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Red Colour

Green Colour

Blue Colour

Pink Colour