Question # 1

If more substrate to an already occurring enzymatic reaction is added more enzyme activity is seen because

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There is probably more substrate present than there is enzyme

There is probably more enzyme available than there is substrate

There is probably more product present than either substrate or enzyme

The enzyme substrate complex is probably failing to from during the reaction

Brush like arrangement of its conidia characteristic of.

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Rhyisopues

Penicillium

Ustilago

Agrees

Phycoerythrin is found in

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Green algae

Red algae

Brown algae

Blue green algae

In Mollusca, a blue respiratory pigment is present called.

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Haemoglobin

Haemoerythrin

Haemocyanin

Prothombin

Hemoglobin Molecule in most cases, does not have beta chain in it, instead F chain is present in

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Oedema

Lecuaemia

Thalasemia

Anaemia

Number of leqs in Arachnida are.

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2

4

6

8

The example of zooflagellates is

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Forms

Vorticella

Entamoeba

Trypanosomes

Ribosomes are chemically composed of

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Only protein

Only DNA

Only RNA

Both a and c

Vascular system is absent in

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Bryophytes

Gymnosperms

Angiosperms

Pteridophytes

In the citric acid cycle acetyle COA reacts with oxaloacetate to form

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Pyruvate

ATP

NADH

Citrate

Female gametophyte in flowering plants is

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Ovary

Archegonium

Seed

Embryo sac

The chances of teenage mother having down's syndrome child is.

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One in one hundred

One in many thousand

One in one thousand

One in ten thousand

The total aggregate of genes in a population at any one time is called the populations gene

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Puddle

Lake

Pool

Pond

Seperation of homologous chromosomes occur during..

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Anaphase

Prophase

Metaphase

Telephase

In myelinated neurons the impulse jumps from node to node (node of Ranvier) This is called

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Myelinated impulse

Jumping impulse

Saltatory impulse

None of these

Adult transgenic tobacco plants glowed when sprayed with the substrate

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Luciferon

Luciferin

Luciferol

Luciferase

Eukaryotes are thought to have first appeared about____billion years ago

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1.2

1.3

1.4

1.5

Cocklebur (Xanthium),chrysanthemum,soyabean,tobacco,strawberry are examples of

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Short day plants

Long day plants

Day-neutral plants

None of these

Chromosomes appear inside the nucleus at the time of.

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Cell division

Cell maturation

Cell elongation

Cell differentiation

Labour pains are induced by a hormone.

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ACTH

Oxytocin

Progesterone

Corticosteroid

Which one the following structures of kidney is involved in the production of concentrated rein.

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Glomerulus

Juxtamedullary nephron

Cortical nephron

Vasa recta

Which hormone is chemically steroid .

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ADH

Corticosherone

Insulin

Thyoxine

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