NSO Level 1- Science Olympiad (SOF) Class 8: Questions 20 - 24 of 1076

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Question number: 20

» Cell

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MCQ▾

Question

Which of the following sets contains unicellular organisms only?

Choices

Choice (4) Response

a.

E. coli, Spirogyra, Chlorella

b.

Streptococcus, Amoeba, Chara

c.

Chlamydomonas, Paramecium, Salmonella

d.

Euglena, Volvox, Hibiscus

Question number: 21

» Cell

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MCQ▾

Question

Which of the following statements is/are correct?

I. The cytoplasm and the nucleus together make up the protoplasm

II. The animal cell does is surrounded by a thin, semi-permeable plasma membrane.

III. Cytoplasm is present between the nucleus and the cell membrane of a eukaryotic cell.

IV. The cell wall is the outer limiting membrane of an animal cell.

Choices

Choice (4) Response

a.

I and II

b.

I and IV

c.

I and III

d.

II and IV

Question number: 22

» Mental Ability

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MCQ▾

Question

A mixture of 50 litres contains milk and water in the proportion , How much water must be added to it so that the ratio of milk to water may be ?

Choices

Choice (4) Response

a.

12

b.

10

c.

16

d.

8

Question number: 23

» Cell

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MCQ▾

Question

In a biology lecture, the teacher is dictating about primitive cells (lack a well-defined nucleus), 70 S Ribosome, DNA which is circular, plasma membrane is present but absence of nuclear membrane. Which type of cell is she referring?

Choices

Choice (4) Response

a.

Animal cell

b.

Eukaryotic cell

c.

Prokaryotic cell

d.

Plant cell

Question number: 24

» Mental Ability

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MCQ▾

Question

________ of natural numbers satisfies closer property?

Choices

Choice (4) Response

a.

Addition

b.

Multiplication

c.

Both a. and b. are correct

d.

None of the above

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