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Science Quiz 38

author October 25, 2025 No Comments PYQ Quiz

Welcome to your Science Quiz 38

With reference to the evolution of living organisms, which one of the following sequences is correct? (2009)

Octopus-Dolphin-Shark

Pangolin- Tortoise-Hawk

Salamander-Python-Kangaroo

Frog-Crab-Prawn

Not Attempted

None

Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity? (2011)

They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.

They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy.

They neutralize the free radicals produced in the body during metabolism.

They activate certain genes in the cells of the body and help delay the ageing process.

Not Attempted

None

A company, marketing food products advertises that its items do not contain trans-fats. What does this campaign signify to the customers? (2011)

The food products are not made out of hydrogenated oils.
The food products are not made out of animal fats/oils.
The oils used are not likely to damage the cardiovascular health of the consumers.

Which of the statements given above is/are correct?

1 only

2 and 3 only

1 and 3 only

1, 2 and 3

Not Attempted

None

When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because? (2011)

Water from soil cannot rise to aerial parts.

Roots are starved of energy.

Tree is infected by soil microbes.

Roots do not receive oxygen for respiration.

Not Attempted

None

From the point of view of evolution of living organisms, which one of the following is the correct sequence of evolution? (2010)

Otter – Tortoise – Shark

Shark – Tortoise – Otter

Tortoise – Shark – Otter

Shark – Otter – Tortoise

Not Attempted

None

The Panda belongs to the same family as that of: (2009)

Bear

Cat

Dog

Rabbit

Not Attempted

None

In making the saffron spice, which one of the following parts of the plant is used? (2009)

Leaf

Petal

Sepal

Stigma

Not Attempted

None

Consider the following statements: (2009)

Sweet orange plant is propagated by grafting technique.
Jasmine plant is propagated by layering technique.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

Not Attempted

None

In the context of genetic disorders, consider the following: (2009) A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct?

Both children suffer from colour blindness.

Daughter suffers from colour blindness while son does not suffer from it.

Both children do not suffer from colour blindness.

Son suffers from colour blindness while daughter does not suffer from it.

Not Attempted

None

10.

Consider the following statements about probiotic food: (2008)

Probiotic food contains live bacteria which are considered beneficial to humans.
Probiotic food helps in maintaining gut flora.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

Not Attempted

None

Name

Time’s up

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