Question # 1

One cardiac cycle is completed in

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0-3 seconds

0-4 second

0-8 second

0-5 second

Pseudocoelom is non-homologous to true coelom because

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It is not lined by coelomic epithelium

It has no relation with reproductive and excretory organs

It develops from blastocoel

All of the above

In human stomach HCl is secreted by.

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Oxyntic cells

Chief cells

Mucous cells

Zymogenic cells

In human body percentage of nitrogen accounts for.

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1%

2%

3%

10%

The optimum pH of catalase is

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6.60

7.60

8.60

9.60

Which class of molecule is the major component of cell membrane

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Phospolipid

Cellulose

Wax

Triglyceride

Constipation is caused by the excessive absorption of

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Water

Blood

Food

Oxygen

The volume of dry seed may increase up to 200 times after absorbing water by.

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Diffusion

Imbibition

Osmosis

Active transport

The carbohydrate digesting enzyme is called.

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Isomerase

Lipase

Amylase

Protease

The size of prokaryotic ribosome is.

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30 S

50 S

70 S

80 S

Myoglobin occurs in

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Red blood cells

White blood cells

Plasma

Muscle fibres

Tundra ecosystem is located on Mountains

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Kara-koram

Hindukush

Salman

Both a & b

The corpus luteum is formed at the site of

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Fertilization

Ovulation

Mensturation

Implantation

In the double helix of DNA adenine forms two hydrogen bonds with

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Thymine

Guanine

Cytosine

Uracil

Two parents, each of blood groups A, have a daughter of blood group O. what is the probality that their next child who has blood gorup O?

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0.125

0.25

0.50

0.75

Branch of biology which deals with the study of abnormal development and their cause is called.

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Embryology

Teratology

Gerontology

Microcephaly

The skeletal muscles are attached with the bones through the.

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Tendon

Ligament

7-Line

Cross bridge

If lobster loses its pincer claw a new claw

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Regenerates

Never develops

IS ready

None of these

The inflammatory degenerative disease of joint is

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Arthritis

Sciatica

Herniation

Spondylosis

Endosymbiont hypothesis was proposed by.

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Wallace

Lamarck

Lynn Margulis

Linnaeus

The corpuses situated quite deep in the body are in the form of encapsulated neurons ending receive deep pressure stimulus are.

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Melsser's

Pacinian

Nissal's

Whiter blood cells

The series of changes which involve period of growths replication of DNA followed ny cell division may be named as

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DNA cycle

Nuclear cycle

Cell cycle

Chemical cycle

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