NSTSE (National Science Talent Search Exam- Unified Council) Class 4: Questions 1245 - 1250 of 1971

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Question 1245

Question

MCQ▾

The main purpose of flowers is to provide:

Choices

Choice (4)Response

a.

Seeds

b.

Food

c.

Support

d.

Water

Question 1246

Question

MCQ▾

Ritul wants to test the presence of starch in a leaf. Given below are the instructions to conduct the experiment. Which of the following step is NOT necessary?

Choices

Choice (4)Response

a.

Heat the leaf on a hot flame

b.

Add a few drops of iodine solution to the bleached leave.

c.

Boil the leaf first in water and then in alcohol

d.

Wash the bleached leaf

Question 1247

Question

MCQ▾

Plants are made of tiny structures called

Choices

Choice (4)Response

a.

Lungs

b.

Stomata

c.

Veins

d.

Cells

Question 1248

Question

MCQ▾

Plants store extra food in the form of:

Choices

Choice (4)Response

a.

Starch

b.

Chlorophyll

c.

Carbon dioxide

d.

Oxygen

Question 1249

Question

MCQ▾

Study the figure given here and identify the gases X and Y.

Figure Shows the Gases X and Y

Choices

Choice (4)Response

a.

X – hydrogen, Y – nitrogen

b.

X – oxygen, Y – carbon dioxide

c.

X – carbon dioxide, Y – oxygen

d.

X – nitrogen, Y – hydrogen

Question 1250

Question

MCQ▾

Statement A: All green plants have chlorophyll pigment.

Statement B: Without chlorophyll, photosynthesis cannot take place.

From the above statements, Sarita concluded that the dark red colored croton plants in her garden cannot prepare food on its own. But her teacher said that it is not correct. Why?

Choices

Choice (4)Response

a.

Croton plants are green but do not contain chlorophyll

b.

Croton plants are dark red in color but do not contain chlorophyll

c.

Croton plants have chlorophyll but it is hidden by dark red colour

d.

Croton plants do not have chlorophyll but they can prepare their own food.

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