Question # 1

The double membrane enveloped of chloroplast surrounds a large ventral space called ............ .

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Strome

Grana

Intergrane

Thylakoid

A protein found in the rod cells of retina of eye is:

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Trypsin

Pepsin

Rhodopsin

None of these

In which compound of the leaf cells, chlorophyll is present?

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Stroma

Thylakoids

Plasma membrane

Cytoplasm

The process of lubrication & digestion steels in ............... .

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Oral cavity

Phyranx

Oesophagus

Stomach

Science is based on ____________

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Obsrvation

Theory

Hypothesis

Law

Chloroplast is bounded by ................ membrane.

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Single

Double

Triple

None

Saliva is alkaline and contains an enzyme:

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Pepsine

Rennin

Ptyalin

Amylase

Which of the following chemical is used to identify the starch in leaves?

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KOH

KHCO₃

Ethanol

Iodine solution

The clusters of photosynthetic pigments are called:

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Thylakoids

Photosystems

Carotenoids

Chlorophyll a & b

Bactelio-chlorophyll is found in ............ .

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Virus

Bacteria

Both

None

Cell membrane i present in _______________ cells.

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Plants

Animals

Both

NOne

Water , soil, air, temperature, wind and sunlight are example of:

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Biotic factors

Biomass

Environment

Abiotic factors

The major cause of lungs cancer is:

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nicotine

smoking

viral infection

radiation

The plant in which vegetation propagation occurs by leave is called:

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Ginger

Ferns

Water lily

Bryophylum

The current level of urbanization in Pakistan is about_____ which is not high by global standards.

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23%

32%

36%

39%

Vector DNA and Gene of interest, collectively called.

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Gene

Recombinant Gene

Recombinant DNA

GMO

Which disease is involved in the breakdown of air sacs of the lungs?

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Bronchites

Emphysema

Pneumonia

Asthema

The male reproductive part of flower is:

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Gynoecuim

Androecium

Corolla

Calyx

The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called.

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Nitrification

Denitrification

Nitrogen fixation

Assimilation

Scientists are able to cut and paste the DNA of organism in:

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1944

1970

1990

2002

Which one is used for the production of plastics?

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Bacillus

Aspergillus

Saccharomyces

None of these

Which of these is an anti-viral proteins?

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Urokinase

Thymosin

Insulin

Interferon

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