Question # 1

Inactive pepsinogen in juice require ___________ for its activated form (pepsin)

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H2SO4

HCl

HNO3

Saliva

Ronald Ross experimented on ____________ and ____________mosquitoes.

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Culex

Anopheles

Both

None

What is correct about human red blood cells?

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Have limited life span

Are capable of phagocytosis

Produce antibodies

Are multinucleate

At ..............°C the process of photosynthesis stops.

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20°C

30°C

25°C

45°cC

Many bacteria in colon produce vitamin ____________ necessary for coagulation of blood.

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A

K

C

D

Which of the following variable is least likely to affect an enzymes rate of reaction?

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Temperature

pH

Carbon dioxide concentration

Enzyme concentration

The elements that makes 03% of the totla mass of living organisms is.

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Hydrogen

Carbon

Oxygen

Nitrogen

Heart consists of ............ chambers.

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Two

Three

Four

Five

How many percent of the light falling on the leaf surface is absorbed:

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5%

6%

7%

1%

In binomial nomenclature, the first letter of the _____name is capitalized:

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Family

Class

Species

Genus

Which of these cellular organelles have their own DNA?

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Chloroplast

Nucleus

Mitochondria

All of these

When Sir Alexander Fleming was awarded by Nobel prize on the discovery of penicillin?

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1881

1955

1945

1912

An epiphyte is an example of:

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Parasitism

Mutualism

Commensalism

Symbiosis

The number of dug addicts in Pakistan's currently to be about:

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200000

300000

400000

500000

The functional unit of kidney is called.

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Renal Pelvis

Nephron

Bowman's capsule

Renal Medulla

Antibiotic are used for the:

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Treatment of viral infections

Treatment of bacterial infections.

Immunization against infections

Both a and b

Glycerol is used.

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In textile

In production if vinegar

In printing

In Beverage

Identify the correctly matched pair:

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Rainfall biotic factors in ecosystem

Global warming formation of fossil fuels

Renewable natural resources air

Corn secondary consumer

Types of Neurons according to their work are:

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Three

Four

Five

Two

The bonds which attach muscles to bones are called:

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ligaments

tendons

cartilage

muscles

In plants, gaseous exchange takes place as:

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CO2 is removed and O2 is absorbed

CO2 is absorbed and O2 is removed

CO2 and O2 both are absorbed

CO2 and O2 both are removed

The wok on genetic engineering started in:

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1944

1946

1948

1952

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