Question # 1

When the last member of a particular species dies, the species is said to be______.

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Established

Extinct

Threatened

Endangered

Which of these clues would tell you whether a cell is prokaryotic or eukaryotic?

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The presence or absence of a cell wall

Whether or not the cell is partitioned by internal membranes

The presence or absence of ribosomes

Whether or not the cell contains DNA

Which of the following may be the correct way of writing the scientific name of an organism?

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Canis lupis

Saccharum

Grant's gazelle

E.Coli

What is correct about human red blood cells?

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Have limited life span

Are capable of phagocytosis

Produce antibodies

Are multinucleate

Important cause of species extinctions is:

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Habitat loss

Deforestaion

Over population

Both a and b

............... metabolism is a major component stem & leaf growth.

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Nitrogen

Oxygen

Carbon

All

Which of the following macro nutrient is the part of chlorophyll?

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Calcium

Magnesium

Sulphur

Iron

Form which bonds of ATP molecule, energy is taken?

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P-P bonds

C-H bonds

C-N bonds

C-O bonds

Which of the following variable is least likely to affect an enzymes rate of reaction?

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Temperature

pH

Carbon dioxide concentration

Enzyme concentration

In which kingdom would you classify unicellular eukaryotes?

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Fungi and plantae

Fungi and monera

Only protista

Only Fungi

Chlorophyll is present in green plastids of plants called ................ .

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Strome

Chloroplast

Grana

Thylakoid

____________ is called the father of genetics.

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Mendal

Ronald Ross

A.F.A King

All

Cell membrane is ....................... .

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Selectively permeable

Impaemeable

Totally permeable

None

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