Question # 1

Experimentation is only a step of the scientific process but it is very important step because it always:

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Gives the biologist a correct result

Allows rejection of some alternative hypothesis

Ensures that hypothesis can be confirmed with certainity

Give scientists a chance to work in the laboratory

Quinine is obtained form:

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quina-quina

Deodar

Cinchona

Shisham

ATP has ........... phosphate group.

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Two

Three

Four

Five

There are _______ micrometers in one millimeter.

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10

100

1000

1000000

There are ... types of photosynthesis pigments.

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One

Two

Three

Four

There are ____________ species of insect's and invertibrates.

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20,700 species

20,750 species

26,700 species

20,800 species

................. was a German Botanist.

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Mathias Schleiden

Theodor Sachwann

Robert Brown

Robert Hooke

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

................ are called accessory pigments.

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Chlorophyll II

Xanthophyll

Carotenoids

All

There are _____________ major kingdoms.

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2

3

4

5

Prior to cell replicates or duplicates its genetic material , the products are connected by a centromere and are called:

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Sister chromosomes

Homologous chromosomes

Non-sister chromatids

Sister chromatids

______is unable to see during day time.

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Rabbit

Owl

Cat

Human

___________ carry nerve impulse away from cell body.

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Dentrites

Axons

Dendrone

Nerve fibre

Calcium oxalate is deposited in the form of crystals in the leaves and stems of.

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Pines

Tomatoes

Rubber

Keekar

Enzyme used to cut the identified gene from the total DNA of Donor organisms is.

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Endonuclease

Ligase

Restriction Endonuclease

Amylase

Budding located in :

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Amoeba

Planaria

Becteria

Yeast

Is an Analgesic:

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Diazepam

Aspirine

Paracetamol

Both B and C

Which kind of blood vessels are present around the alveoli?

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Artery

Capillary

Arteriole

Veins

What are the main components of a a bone?

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Marrow, spongy , bone , wax

Narrow, compact bone, wax

Compact bone and narrow

Compact bone, spongy bone

In wood seems and roots the gaseous:

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lenticels

epidermal cells

somata

micropyle

The organs which are specifically built to detect particular type of stimulus are called.

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Receptors

Effectors

Stimuli

All of these

What type of blood vessels surrounds the alveoli?

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Artery

Arteriole

Capillary

Vein

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