Question # 1

Pick the odd one

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Cellulose

Galactose

Agar

Pectin

The succession which occurs in dry soil or rock is

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Hydrosere

Xerosere

Decrosere

All of these

"Litho" means

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Air

Earth / soil

Water

All of these

Nutrient elements become the part of protoplasm during

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Photosynthesis

Decomposition

Fixation

Assimilation

Protostomes and deuterostomes do not differ in

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Type of cleavage

Origin of mouth and anus

Number of germ layers

Mode of coelom formation

Most of the plant cells lack following organelles EXCEPT

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Flagellum

Lysosome

Centriole

Mitochondria

Which of the following is correct about insulin

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Inhibit glycogen hydrolysis

Increase protein synthesis

Increase glycolysis

All

Man depends foams are potential sources of

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Carbon monoxide

Sulphur dioxide

Chlorofluorocarbons (CFCs)

Lead compounds

Causative agent of mysterious brain infection is composed of

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DNA+Protein

RNA+Protein

RNA only

Protein only

Which of the following bond is not present in tertiary structure of proteins

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Peptide

Hydrogen

Ionic

Ester

Dams and canal networks developed for irrigation purpose in Pakistan and many other countries create the problems of

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Salinity and soil erosion

Salinity and water logging

Soil depletion and water erosion

Soil erosion and depletion

Parapodia are organs of locomotion in ……

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Leech

Planaria

Earthworm

Neries

Insect and flower relationship is the example of

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Mutualism

Commensalism

Parasitism

All of above

In case of sickle cell anemia, in place of glutamic acid, _________ is found

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Histidine

Valine

Proline

Leucine

Chemical nature of spikes present on HIV

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Protein

Carbohydrate

Glycolipid

Glycoprotein

The term niche in ecolgy was first proposed by:

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Charles Eton

Ernst Haeckel

Joseph Grinnell

Carolus Linnaeus

The ecosystem present on land or soil is called

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Terrestrial ecosystem

Lithospheric ecosystem

A and B

None

Green plants are ______ trophic level

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First

Second

Third

Forth

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

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Iodine

Calcium

Potassium

Iron

Macronutrients are required by the organisms in:

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Small amount

Large amount

Traces

Never required

The animal that is caught and eaten away is called

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Victim

Prey

Predators

Host

Green house effect, acid rain headaches and coughs are related to which of the followings?

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Oxides of nitrogen

Oxides of sulphur

CO

CFCs

Moss stage is represented by

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Polytrichum

Tortula

Adiantum

Both a and b

Genes for alpha and beta chains of hemoglobin are found on which chromosomes?

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Chromosome 16 alpha; chromosome 11 beta

Chromosome 11 alpha; chromosome 16 beta

Chromosome 11

Chromosome 16

The receptors which are 27 times more abundant than cold receptors

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Pressure receptors

Pain receptors

Heat receptors

Light receptors

Soil nitrogen resources are also strengthened by the addition of ______ by the man himself

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Nitrogen fertilizers

Nitrogen

Fertilizers

None of above

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

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biology

ecology

zoology

mycology

Cloud cover is reduced due to

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Reforestation

Afforestration

Deforestration

Air pollution

Group of interbreeding organisms residing together in space & times are

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Community

Population

Genus

Family

Which of the following is not an abiotic component

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Atmosphere

Hydrosphere

Lithosphere

Producers

In which types of soil does water logging occur?

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Silt

Clay

Gravel

Sand

Primary sensory areas are present in

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Cerebral cortex

Cerebral medulla

Cerebellum

Medulla oblamgata

_____is the study of interaction between living organism and their environment

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Evolation

Genetics

Ecology

Sociology

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 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

Which type of hepatitis is called serum hepatitis

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Hepatitis A

Hepatitis B

Hepatitis C

Hepatitis D

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

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

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Decomposers

Algae

Producers

None o these

First invertebrate to develop a nervous system is

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Sponges

Cnidarians

Flat worms

Round worms

According to endosymbiont hypothesis the aerobic bacteria developed into

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Lysosomes

Mitachondria

Chloroplast

Nucleus

Grazers feed mainly on which kind of plants

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Tree leaves

Shrubs

Grasses

Cereals

Both Glycoprotein and glycolipids are components of

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Plant Cell walls

Algal Cell Walls

Fungal Cell Wall

Biological Membranes

The cartilaginous fishes contain scales ….

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Placoid

Cycloid

Ganoid

Ctenoid

Life on earth is affected by both

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Weather and water

Weather and climate

Climate and water

Water and air

Elements required in large amount are called

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Micronutrient

Macronutrient

Organic elements

Inorganic elements

Highest degree of regeneration is present in sponges because of

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Undifferentiated cells

Simplest organization

Ability to reproduce

Absence of germ layers

The total energy from the sun is trapped by the producers in an ecosystem is about:

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20%

10%

5%

1%

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

Which is not the function of glucagon

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Glycogen hydrolysis

Lipolysis

Gluconeogenesis

Protein synthesis

Coniferous forests located at high latitude are called

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Boreal

Taiga

Tundra

Alpine

Which of the following sugar does not form a ring structure in a solution

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Glyceraldehyde

Ribose

Glucose

Fructose

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

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

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Intergranum

Crista

Granum

F_{_1}particle

Parasites which live inside the host body is called:

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Ectoparasite

Endoparasite

Intestinal parasite

Muscular parasite

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

Primary succession that starts on a dry habitat is called:

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Hydrosere

Derosere

Xerosere

Aquasere

It acts on smooth muscles

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Insulin

Glucagon

Cortisol

Oxytocin

The term ecology was first used by a ________ zoologist.

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American

Canadian

German

Greece

Abiotic factors include:

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Geomagnetism

Gravity

Water

All these

The chances of which hemophilia is equal in males & females

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A

B

C

All

In life cycle of bacteriophage, ______ occurs followed by_______.

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Assembly. Penetration

Multiplication, landing

Tail contractio, Penetration

Penetration, Assembly

The amount of energy left after plant have met their respiratory need is net primary production called as

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Mass

Gross production

Biomass

None

All carbon atoms in a monosaccharide ____ have hydroxyl group

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Except one

Except Two

Without Exception

Except last

Annual rainfall in grassland is about:

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250 to 650 mm

250 to 850 mm

250 to 450 mm

250 to 750 mm

The pairs of gills present in cyclostomata are

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5-7

10-12

6-14

4-5

A community is

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A collection of plants and animals

Autotrophs and heterotrops

Population of different species living together in the same area

Food chain

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

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Endoparasite

Ectoparasite

Outer parasite

All of above

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

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1

2

3

4

Overgrazing resulted in

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Diminishing the grasses

Desert

Barren land

All of these

Formation of ES complex activates the______ site of an enzyme

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Active

Binding

Catalytic

Allosteric

Producers are

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Heterophs

Green plants

Carnivores

Herbivores

Function of succinic dehydrogenase is aided by

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Metal ion

Vitamin

NAD

FAD

Which of these traits zigzags from meternal grand father through a carrier daughter to a grandson ?

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autosomal

X-linked

Y-linked

X and Y linked

Endocytosis of an apoptotic body is termed as

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Pinocytosis

Exocytosis

Phagocytosis

Apoptosis

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

The amount of DNA in _____ is one half to that of_____:

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Somatic cells, Germ cells

Osteocytes, Somatic cells

Germ cells, Somatic cells

Somatic cells, Gametocytes

A hormone which regulates glucose and minerals

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Aldosterone

Cortisol

Insulin

Corticosterone

Viral core always contain __ among the following

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DNA

RNA

Both A and B

Any of A or B

Which rule depicts its correct statement regarding temperature variation?

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Allen's Rule:

Birds and mammals have greater size in cold region

Bergman's Rule:

The tail snout and ears are smaller in colder region.

Jordan's Rule:

Birds in cold regions are with narrow wings.

All are false.

Which are pioneers of terrestrial ecosystem

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Dermatocarpons

Parmelia

Polytrichum

None of these