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Biology 9th Class English Medium Online Test MCQs With Answers

Question # 1

Quinine is obtained form:

Choose an answer

quina-quina

Deodar

Cinchona

Shisham

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Question # 2

................. produce bile.

Choose an answer

Stomach

Liver

Intestine

All

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Question # 3

Down's syndrome is case of .................. .

Choose an answer

Autosomy

Monosomy

Trisomy

Tetrasomy

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Question # 4

Fluid mosaic model explains the structure of:

Choose an answer

Cell membrane

Cytoplasm

Cell wall

Milochondria

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Question # 5

Which of the following chamber has the thickest walls in human heart?

Choose an answer

Right atrium

Left atrium

Left ventricle

Right ventricle

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Question # 6

The _________ is a major component of plant cell walls.

Choose an answer

Chitin

Peptiodglycan

Cellulose

Cholesterol

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Question # 7

Which of following helps in lowering blood cholesterol and sugar levels?

Choose an answer

Roughage

Lipids

Vitamin

Carbohydrates

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Question # 8

Cytokinesis in a plant cell is characterized by:

Choose an answer

The equal division of homologous chromosomes

A pinching off of the cell membrane to divide the cell

The formation of a cell plate in the cytoplasm

The movement of the chromosomes from the metaphase plate

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Question # 9

Smooth endoplasmic reticulum is the area in a cell where __________ are synthesized.

Choose an answer

Polysacchrides

Proteins

Lipids

DNA

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Question # 10

................ is the first organ which comes out of seed.

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Stem

Root

Leaf

All

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Question # 11

A bacterial cell contains about _______________

Choose an answer

10,000

20,000

30,000

40,000

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Question # 12

Any environment factor, the absence or deficiency of which can decrease the rate of a metabolic reaction known as:

Choose an answer

Unlimited factor

Limiting factor

Both

None

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