Question # 1

How many elements maek 99% of the total mass.

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Four

Six

Eight

Ten

Prokaryotic ribosomes is ...................

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20s

30

70s

80s

Exchange of water vapours and gases occurs in leaf through:

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Stomata

Epidermics

Xylem

Phloem

The _____________ name begins with a capital letter .

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Generic

Species

Both a and b

None

During which phase of mitosis spindles are formed?

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G2

Interphase

Prophase

Metaphase

Which of the followings in not true about the opening and Closing of Stomata?

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Light helps in the opening and closing of stomata

K⁺ ions are responsible for the opening and closing of stomata

The osmosis of water is responsible for the opening and closing of stomata

None for these

The stomach capacity is about ........................ .liters.

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1 liter

2 liter

3 liter

LL of above

The that is needed to initiate chemical reaction that energy is called ................... . energy.

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Kinetic

Potential

Activation

None

Presence of third copy of homoglus chromosomes in the cell is called ........... .

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Monosomy

Disomy

Trisomy

Tetra somy

The movement of molecules against the concentration gradient is called:

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Diffusion

Passive transport

Active transport

Endocyosis

Simple tissues have _______________ types.

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1

2

3

4

Temporal lobe is concerned with:

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Hearing and smelling

Control skeleton muscles

Visual information

Both A and B

Interferons are __________ proteins:

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Antibacterial

Antiviral

_Antifungal

Antidrugs

Total chemicals in tobacco smoke are:

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1000

2000

3000

4000

Asexual reproduction in yeast takes place through:

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Budding

Fragmentation

Binary fission

Spore formation

The points of attachment of genes on chromosomes are called.

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Transcription

Translation

Loci

Phenotype

Which one is the antiviral protien among the following:

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Urokinase

Tymosin

Insulin

Interferon

In wood seems and roots the gaseous:

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lenticels

epidermal cells

somata

micropyle

The drugs that kills or reduce the reduce the growth of bacteria.

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Antibiotics

Analgesics

Antibodies

Antinorcotics

The correct match for the fermentation product and organism involved is.

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Formic Acid - Saccharomyces

Ethanol- Saccharomyces

Ethanol-Asperellus

Glycerol-Aspergillus

The cardiotonic known as digitalis, is obtained from a plant:

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Accacia

Brassica

Mimosa

Fox glove

Adenine always pairs with:

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Guanine

Cytosine

Uracil

thymine

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