Question # 1

Tiny thin walled ducts called parabronchi are present in the lungs of.

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Mammals

Reptile

Birds

Amphibians

The detachable co factor of an enzyme is known as

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Co enzyme

Ap enzyme

Activator

Prosthetic group

The bio element which accounts 18% of total mass in human body is

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Oxygen

Hydrogen

Carbon

Nitrogen

Respiratory organs in fish are

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Lungs

Gills

Skin

Fins

Margulis and Schwartz accommodate the diverse assemblage orf organism of Protista into.

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37 phyla

27 Phyla

10 Phyla

5 Phyla

The larva found in echinoderms is

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Trochophore

Veliger

Bipinnaria

Planaria

The interval of time until the completion of next division is known as.

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Interphase

Generation time

Reproductive time

Growth

Mammals become dominant in

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Paleozoic period

Mesozoic period

Coenozoic period

Proterozoic period

Which statement about ATP is not true

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It is used as an energy currency by all cells

It is formed only under aerobic condition

Some ATP is used to drive the synthesis of storage compounds

It provides energy for many different biochemical reaction

Hemoglobin Molecule in most cases, does not have beta chain in it, instead F chain is present in

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Oedema

Lecuaemia

Thalasemia

Anaemia

Prototherian are commonly called.

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Egg laying mammals

placental mammals

Pouched mammals

None of these

Digitigrade mammals tend to walk on their

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Soles

Digits

Tips of toes

None of these

Human body temperatrue is controlled by.

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Hypothalamus

Pons

Cerebellum

Medulla

Which one of the following is endangered in Pakistan.

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Indian rhino

Indus Dolphin

tiger

Cheer pheasant

To genome fragment can be separated according to their lengths during .

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Gel electrophoresis

PCR

Cloning

Gene therapy

In non disjunction, chromosome's fail to segregate during.

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Prophase

Metaphase

Anaphase

Telephase

In 1953, F . Sanger described the sequence of amino acids of.

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Myoglobin

Insulin

Keratin

Globulin

Thick filament in myofibril is made up of

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Myosin

actin

Tropomyosin

Troponin

The disease caused due to destruction of adrenal cortex is.

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Cushing

Diabetes

Addison

Alzheimer

Who was the first to propose an objective definition of instincts in terms of animal behaviour

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Darwin

Lamarck

Wallace

Lyell

The collenchymatous cells are highly lignified and found in the.

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Hydrotropism

Thigmotropism

Geotropism

Phototropism

The shell, over chick egg is secreted as it passes through.

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Ovary

Oviduct

Uterus

Cloaca

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