NSTSE (National Science Talent Search Exam- Unified Council) Class 4: Questions 1234 - 1239 of 1971

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Question number: 1234

» General Science » Plants and Their Food

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Question

Which of the following performs photosynthesis in cactus?

Choices

Choice (4) Response

a.

Stem

b.

Spines

c.

Roots

d.

Leaves

Question number: 1235

» General Science » Plants and Their Food

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Question

Nilam take a two glass bottle filled with water and add a few drops of red ink. Place a stem of balsam plant and keep it for a few hours. After a few hours, why the white flowers turns into red?

Choices

Choice (4) Response

a.

Water conducts through the leaves

b.

The stem conducts water and minerals

c.

Balsam plant has red flowers

d.

None of the above

Question number: 1236

» General Science » Plants and Their Food

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Question

The leaves of plants are green because:

Choices

Choice (4) Response

a.

Of the presence of a green pigment called chlorophyll

b.

Photosynthesis occurs in the leaves

c.

They are born from green coloured seeds

d.

Of the presence of network of veins

Question number: 1237

» General Science » Plants and Their Food

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Question

Green leaves are called:

Choices

Choice (4) Response

a.

Food factory

b.

Cells

c.

Plant

d.

Tree

Question number: 1238

» General Science » Plants and Their Food

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Question

Study the given plant shown below.

Image shows the plant

Image Shows the Plant

This image shows the plant

Arrow – 2 represents:

Choices

Choice (4) Response

a.

Roots

b.

Flower

c.

Leaves

d.

Stem

Question number: 1239

» General Science » Plants and Their Food

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Question

Asmita covered a leaf with black cover for few days and then tested it with iodine solution for the presence of starch in it. The colour of the solution did not turn blue-black. What does this indicate?

Choices

Choice (4) Response

a.

Starch is not prepared in the absence of light

b.

Starch is evaporated from the leaves

c.

Iodine solution does not work with black covers

d.

Black cover absorbed all the starch present in the leaf

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