Question # 1

Which of the following is a function of human blood?

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It regulates body temperature

It transports wastes

It provides defence

All of the above

The process of cellular ingestion of bulky materials by infolding of cell membrane is called:

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Exocytosis

Endocytosis

Karyokinesis

None of these

___________ is a group of related genre.

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Family

Order

Class

Phylum

Cytoplasm is composed of _______________water.

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10%

30%

60%

90%

Which of the following does not occur in the oral cavity?

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Lubrication of the food

Beginning of protein digestion

Breaking the food into small fragments

All of the above do occur in the oral cavity

The process of mitosis ensures that:

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Each new cell is genetically different from its parent

Each new cell receives the proper number of chromosomes

Cell will divide at the appropriate time

Chromosomes duplicated without errors.

Supporting tissues are also known as:

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Ground tissue

Epidermal tissue

Mechanical tissue

All

What is correct about human red blood cells?

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Have limited life span

Are capable of phagocytosis

Produce antibodies

Are multinucleate

Ronald Ross experimented on ____________ and ____________mosquitoes.

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Culex

Anopheles

Both

None

Cell theory was proposed by:

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Theodor Sachwann

Mathias Schleiden

Both a & b

None

Cellulose is present in:

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Primary wall

Secondary lamella

None of above

Types of Neurons according to their work are:

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Three

Four

Five

Two

Alternative forms of a gene are called.

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Allele

DNA

Chromosome

Gamete

The simplest method of asexual reproduction is:

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Fragmentation

budding

parthenogenesis

binary fission

The male reproductive part of flower is:

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Gynoecuim

Androecium

Corolla

Calyx

Aspirine belongs to the group of drugs :

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Synthetic Drugs

Drugs from plant and fungi

Drugs from minerals

Drugs from Bacterai

In ecosystem the role of decomposers is played by

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animals

plants

bacteria and fungi

algae

Expired drugs can cause damage to:

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Heard

Brain

Kidney

Stomach

Streptomycin is obtained from.

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Bacteria

Virus

Fungi

Microoganisum

Which of the following air pollutant react with water in atmosphere producing acid rain?

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Hydrocarbons fluorine

Flyash, soot

chlorine , smoke

Sulphur dioxide, Nitrogen oxide.

If an organism have genotype of AAbb, How many types of gametes can it produce:

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3

2

1

4

Which of these micro-organism is used in the production of formic acid?

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Aspergillus

Bacillus

Saccharomyces

None of these

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