Question # 1

Which harmones is male stimulates the production of testosterone.

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TSH

FSH

LTH

ICSH

Nissl's granules are group of.

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Mesosomes

Lysosomes

Ribosomes

chromosomes

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

Which of the following statements conserning the role of Ca⁺² inthe contraction of skeletal muscle is correct?

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The mitochondria act as a store of Ca⁺²for the contractile process

Ca⁺²entry across the plasma membrane is important in sustaining the contraction of skeletal muscle

A rise in inter cellular Ca⁺²allows actin to interact with myosin

The tension of a skeletal muscle fiber is partly regulated by G proteins muscle

EEG is the most important test for the study of.

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Epilepsy

alzheimer's disease

Parkinson's disease

Arthritis

Active membrane potential is

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0.05 volts

- 50 mv

Both a & b

0.07 volts

In terrestrial plants major mechanical stress is imposed by.

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Gravity

Temperature

Wind

Soil

Testosterone is secreted by

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Sertoli cells

Interstitial cells

Prostrate gland

Germinal epithelium

Which animal has diffused nervous system.

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Octopus

Earthworm

Planaria

Jelly fish

The disorder in which bones are porous and thin but bone composition normal is:

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Osteomalacia

Osteoporosis

Rickets

Arthritis

The process that normally exerts the greatest control over the water balance of an individual is:

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Sweating

Kidney function

Evaporation through the skin

Respiratory loss

In skletal muscle, calcium facilitates contraction by binding to:

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Tropomyosim

Troponin

Actin

Myosin

The Limbic system is located between thalamus and

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Hypothalamus

Cerebrum

Pons

Cerebellum

The mammals who walk on trips of the toes, modified into hooves are termed as.

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Plantigrades

Digitigrades

Brach grades

Unguligrade

Amphibians wriggle along the belly on the gound with the help of segmentally arranged

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Muscles

Scales

Skin patches

Both a & b

Why is there no glucose present in the filterate in the distal tubule of a nephron?

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Its molecules are two large to pass across the base ment membrane

It is removed by osmosis from the tubule

It is positively absorp by the cells lining the descending loop of henie

He is actively absorb by hte proximal tubule cells

Resting membrane potential of a neuron is

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50 mv

-70 mv

-60 mv

-80 mv

Action of the venus fly trap is

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Nyctinasty

Photonasty

Haptonasty

Thermonasty

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