Online Test

Question # 1

Stomata close when guard cells:

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Loss water

Gain chloride ions

Become turgid

Grain potassium ions

Phylums are grouped into _____________

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Phylum

Order

Class

Kingdom

The study of classification of living & axtinct organisms is called ____________

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Taxonomy

Anatomy

Emnryology

Morphology

Felis Tigris is scientific name of ____________

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Cat

Lion

Tiger

Deer

Which of these major bioelements is in the highest percentage in protoplasm?

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Carbon

Hydrogen

Oxygen

Nitrogen

The study of living things is called.

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Biotechnology

Biology

Chemistry

Farming

The power house of the cell is :

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Mitochondria

Protien

Ribosome

Chloroplast

Mitochondria store _______________

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AMP

ADP

ATP

None

Which of the following is unique to mitosis and not a part of meiosis?

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Homologous chromosomes pair forming bivalents

Homologous chromosomes cross over

Chromosomes pairs are broken during anaphase

Chromatids separate during anaphase

There are_______________chromosomes in radish.

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46

18

16

23

What is True about enzymes?

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They make biochemical reactions to proceed spontaneously

They lower the activation energy of a reaction

They are not very specific in their choice of substrates

They are needed in large quantities

..................... are very large molecule.

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Protein

Carbohydrates

Lipid

Vitamins

Scientists noticed that persons living near marshy areas were most likely suffered from malaria. They will considered this fact as

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Problem

Hypothesis

Observation

Experiment

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