Question # 1

Which of the following statement about the ribosomes is correct

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They are structurally different from free ribosomes

They are enclosed in their own membrane

They are concentrated in the cisternal space for the rough ER

They are attached to cisternal surface

Photosynthesis II has the form of chlorophyll a which absorb best light of

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670 nm

680 nm

690 nm

700 nm

Sleeping sickness is spread by

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Tsetse fly

trypanosoma

Mosquito

Plasmodium

The bests fly of African contrives transition trypanosome, the cause of.

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Sleeping sickness

Measles

Lung infection

Malaria

The moment of plants when carbon di oxide required by photosynthesis is termed as.

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Compensation point

Homeostasis

Chemisoris

Action spectrum

Cell wall in Oomycetes is chemically composed of

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Cellulose

Chitin

Proteins

Lignin

The most abundant protein in chloroplast and probably most abundant protein in the world is

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Hemoglobin

Rubisco

Insulin

Globulin

Water potential of pure water is.

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Less than zero

Equal to zero

More than zero

Equal to one

Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized and combined with coenzyme A forming acetyl CoA, carbon dioxide and one molecule of

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NADH

FADH₂

ATP

ADP

During breathing no stale of air remains in the lungs of.

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Mammals

Amphibian

Birds

Sarracenia

The mRNA of the total cell RNA is about.

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3 - 4 %

1 - 2%

2 - 4%

3 - 5 %

Flame cells are poart of excretory sytstem of

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Hydra

Cockroach

Planaria

Earth worm

Every gene starts with initiation codon AUG which encodes for the amino acid.

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Lysine

Serine

Proline

Methionine

The funnction of the tubules in muscle contraction is to:

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Make and store glycogen

Release Ca⁺²into the cell interior and then pick it up again

Make the action potential deep into the muscle cells:

To hamper the nerve impulse

Abdomen has a peritoneal cavity, lined by a thin epithelium called.

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ectoderm

endoerm

Peritoneum

Epidermis

Diploid parthenogenesis may occur in

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Aphids

Bees

Wasp

Honey bee

Effect of photoperiodism was first studied in 1920 by

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Darwin & Francis

Garner & Allard

Linnaeus & Lamarck

Walson & Crick

Rickets is due to deficiency of vitamin.

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A

C

D

E

For evaporative cooling bats use

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Saliva

Urine

Sweat

All a,b,andc

Which statement defines the net primary production in an ecosystem over a given time period?

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The total amount of organic matter in the plants in excess of that used in respiration

The total amount of organic matter used in respiration by all the organisms present

The total amount of photosynthesis product from all plants

The total amount of organic matter in all organisms present

Study of different communities with relation to environment is called.

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Synecology

Embryology

Autecology

Zoology

The random loss of alleles in a population is called:

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Mutation

Selection

Gene flow

Genetic drift

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