Question # 1

Each mesophyll cell of leaf has chloroplast about.

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10-20

20-80

20-100

100-110

One of the following has no upper inclusions.

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Deer

Dog

Bear

Pig

Which one is a parasitic plant.

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Pitcher plant

Venus fly trap

Dodder

Sun dew

Glycolysis is the break down of

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Fructose

Glucose

Lactose

Maltose

Respiratory organs in fish are

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Lungs

Gills

Skin

Fins

In human body percentage of nitrogen accounts for.

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1%

2%

3%

10%

Which of the following pair of structure-function is mismatched

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Ribosomes, protein synthesis

Nucleolus, ribosomes production

Glogi, muscle contraction

Lysosome, intracellular digestion

Closely related classes are grouped in to.

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Division

Order

Family

Kingdom

When blood leaves the capillary bed most of the carbon dioxide is in the form of

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Carbonate ions

Bicarbonate ions

Hydrogen ions

Hydroxyl ions

Excretory organ in annelid are.

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Nephridia

Nephron

Flame cells

Malpighian tubule

The basic element of organic compound is.

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Nitrogen

Carbon

Hydrogen

Oxygen

Which organ is the central station of Metabolism.

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Liver

Kidney

Spleen

Skin

Some individuals leave behind more progeny than others and teh rate at which they do so is affected by their inherited characteristics. This is called.

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Non random mating

Selection

Migration

Mutation

The sites where nerve impulse is transmitted from the nerve endings to the skeleton muscle cell membranes are the:

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Neucromuscular junctions

Sarcomeres

Myofilaments

Z discs

From beginning of the 3^rd month of pregnancy the human embryo is referred to as the

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Foetus

Kid

Kitten

CUb

Which tumor is delocalized or has branches other than site of orgin.

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Benign

Malignant

Both

Apoptosis

Which one is Tall grass

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Andropogon

Panicum

Both a & b

Stipa

Thick filament in myofibril is made up of

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Myosin

actin

Tropomyosin

Troponin

The laptotene and zygotene lasts for.

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Few hours

Few days

Few weeks

Few years

Similarity in characteristics resulting from common ancestry is known as:

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Analogy

Homology

Evolutionary relationship

Phylogeny

The Sclerenchyma has thick secondary walls usually impregnated with.

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Chitin

Pectin

sillica

Lignin

The decline in thickness of the ozone layer is caused by increasing level of

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Chlorofluorocarbon

Nitrogen

Chlorine

Carbon dioxide

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