Question # 1

Stomata close when the guard cells;

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Lose water

Gain chloride ions

Became turgid

Gain potassium ions

Necrosis is death due to ............ cell damage.

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Unexpected

Accidental

Both a & b

None

.............. is water-soluble vitamin.

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Vitamin A

Vitamin C

Vitamin D

Vitamin K

Ribosomes occur in groups called .................. .

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Nucleosomes

Polysomes

Dictyosomes

All

Carbon Dioxide is almost .......... percent in air.

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0,01

0.3

0,03

0.1

Logical consequences of hypothesis is,

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Experiment

Deduction

Observations

Theory

Group of species having similar character is called ____________

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Family

Classes

Genus

Order

The longest phase is:

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Mitotic phase

Meiosis

Cell cycle

Interphase

There are more than _____________ million kinds of living organism.

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1

2

3

4

Organelles are present in :

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Protoplasm

Nucleoplasm

Cytoplasm

None

Science is based on ____________

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Obsrvation

Theory

Hypothesis

Law

What would be the best experimental design for testing a hypothesis that bean plants require sodium?

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Measure the amount of sodium in a few bean plants

Grow bean plants with and without sodium

Look for sodium in leaf tissues

Analyze root contents for sodium

Which phase of meiosis is similar to mitosis?

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Prophase I

Telophase II

Meiosis I

Meiosis II

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9th Class Biology English Medium KPK Boards Online Mcqs MCQs With Answers

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