Science Quiz 42

Welcome to your Science Quiz 41

In which organ of the human body are the lymphocyte cells formed? [2004]

Liver

Long bone

Pancreas

Spleen

Not Attempted

None

Assertion (A): Fatty acids should be a part of the balanced human diet. Reason (R): The cells of the human body cannot synthesize any fatty acids. [2004]

Both A and R are individually true and R is the correct explanation of A

Both A and R are individually true but R is not the correct explanation of A

A is true but R is false

A is false but R is true

Not Attempted

None

Consider the following statements: [2004]

Femur is the longest bone in the human body.
Cholera is a disease caused by bacteria.
‘Athlete’s foot’ is a disease caused by virus.

Which of the statements given above are correct?

1 and 2

2 and 3

1 and 3

1, 2 and 3

Not Attempted

None

Octopus is: [2003]

An arthropod

An echinoderm

A hemichordate

A mollusc

Not Attempted

None

With reference to the work of human kidney, consider the following statements: [2003]

After the waste is removed in the kidney, the cleaner blood is sent back through renal artery.
From Bowman’s capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.

Which of these statements is/are correct?

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

Not Attempted

None

Which one of the following statements is not correct? [2003]

Milk contains none of the B-vitamins

Vitamin-A (retinal) deficiency leads to dry and scaly skin

One of the symptoms of scurvy is pain in the joints

Vitamin B1 (thiamine) deficiency can lead to heart failure

Not Attempted

None

Consider the following conditions of sick human body: [2003]

Swollen lymph nodes
Sweating at night
Loss of memory
Loss of weight

Which of these are the symptoms of AIDS?

1 and 2

2, 3 and 4

1, 2 and 3

1, 2, 3 and 4

Not Attempted

None

With reference to normal human beings consider the following statements: [2003]

In response to the presence of HCL, secretin is produced from the duodenum.
Enterogastrone is produced in the small intestine in response to the presence of fatty acids.

Which of these statements is/are correct?

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

Not Attempted

None

Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species? [2002]

Isolation

Mutation

Natural Selection

Sexual Reproduction

Not Attempted

None

10.

Ticks and mites are actually: [2002]

Arachnids

Crustaceans

Insects

Myriapods

Not Attempted

None

Name

Time’s up

Welcome to your Science Quiz 42

With reference to the blood in a normal person, which one of the following statements is correct? [2002]

Compared to arteries, veins are less numerous and hold less of the body’s blood at any given time

Blood cells constitute about 70 per cent of the total volume of the blood

White Blood Cells (WBC) are made by lymph nodes only

The blood has more platelets than WBC

Not Attempted

None

Consider the following plants: [2002]

Bougainvillea
Carnations
Cocoa
Grapes

Which of these plants are propagated by stem cuttings?

1 and 2

2, 3 and 4

1, 3 and 4

1, 2, 3 and 4

Not Attempted

None

In the context of organic evolution, the loss of limbs of snakes is explained by the phenomenon of: [2002]

Use and disuse of organs

Adaptation to living in burrows

Natural selection

Inheritance of acquired characters

Not Attempted

None

When one gene controls two or more different characters simultaneously, the phenomenon is called: [2002]

Apomixis

Pleiotropy

Polyploidy

Polyteny

Not Attempted

None

With reference to the human body, consider the following statements:

The production of somatropin goes up when a person exercises.
Men’s testes produce progesterone.
Women’s adrenal glands secrete testosterone.
Stress causes the adrenal to release very less amount of cortisol than usual.

Which of these statements are correct?

1, 2, 3 and 4

1, 2 and 3

2, 3 and 4

1 and 4

Not Attempted

None

Which one of the following is monogamous? [2002]

Wolf

Walrus

Seal

Deer

Not Attempted

None

In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as: [2002]

Dichogamy

Herkogamy

Heterogamy

Monogamy

Not Attempted

None

Which one of the following statements is not correct? [2002]

All echinoderms are viviparous

Round worm has no circulatory system

In bony fishes, swim bladder is usually present

In cartilaginous fishes, fertilisation is internal

Not Attempted

None

Which one of the following statements is correct? [2002]

Prions are the smallest free-living cells

The cell wall of Mycoplasmas is made up of amino sugars

Viroids consist of a single-stranded RNA molecule

Rickettsias lack cell wall

Not Attempted

None

10.

Assertion (A): Drinking of whisky increases the frequency of urination. [2002] Reason (R): Alcohol intake speeds up the secretion of vasopressin in the body.

Both A and R are individually true and R is the correct explanation of A

Both A and R are individually true but R is not the correct explanation of A

A is true but R is false

A is false but R is true

Not Attempted

None

Name

Time’s up

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