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Biology 9th Class Urdu Medium Chapter 9 Online Test MCQs With Answers

Question # 1

Under which condition , there will be high rate of transpiration?

Choose an answer

High humidity

Low ligh intentisy

Water logged soil

Wind

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Question # 2

The loss of wate int he form of drops from tips of leaf is called.

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Evaporation

Excretion

Guttation

Transporation

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Question # 3

Which element is requried by plants for the formationof chlorophyII.

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Magnesium

Phosphorus

Calcium

Suphur

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Question # 4

Whcih process is not involved in water transport in plants.

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Photosynthesis

Transpiration

Root pressure

Capillary action

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Question # 5

In most plans the food is transported in the form of.

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Maltose

Sucrose

Glucose

Starch

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Question # 6

What is produced during respiration.

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CO2

CO2 and H2O

H2O

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Question # 7

Maintenance of internal body temperature is called.

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Osmoregualation

thermoregulation

Trnaspiration

Excertion

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Question # 8

All of the following are the adaptation of exrophytes except.

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Thick cuticle

Sunken stomata

Deep root system

Large number of stomata

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Question # 9

What is the role of companion cells in the translocation process.

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They stor excess solutes in the phloem

they assist in the absorption of water by roots

They actively transport sugas into the phloem's sieve tube elements

The help regulate water potential in the xylem

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Question # 10

Which category of plants stores a small amount of water and has a thin cuticle.

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Mesophytes

Succulents

Xerophytes

Hydrophytes

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Question # 11

Which of the following is not function of roots in plants.

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photosynthesis

Absorption of water

Anchor the plant

Nutrient absorption

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Question # 12

Most of the uptake of water and minerals from soil takes place through.

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Root cap

Epidermal cells

Root

Root Hair

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