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TRUE/FALSE. Bubble \'A\' if the statement is true and \'B\' if the statement is

ID: 3482787 • Letter: T

Question



TRUE/FALSE. Bubble 'A' if the statement is true and 'B' if the statement is false. 75) Only one cell type in the human body has a flagellum. 76) Nasal conchae mainly work on inhalation to warm and moisten air. They serve minor functions for exhalation. 77) Nitric oxide may act as a biological messenger. 78) Positive feedback mechanisms tend to increase the 79) In myelinated axons the voltage-regulated sodium 80) Intrapleural pressure is normally about 4 mm Hg original stimulus channels are concentrated at the nodes of Ranvier. less than the pressure in the alveoli.

Explanation / Answer

75.True.

That cell is sperm and it moves towards egg for fertilization.

76.False.

They warm, moisten and filter air during inhalation.

77.True.

NO mediates diverse signalling pathways in target cells.

78.True.

It is important for organism to maintain boundaries.

79.True.

Saltatory conduction in myelinated axons requires organisation of nodes of ranvier.

80.True.

It refers to the pressure in pleural cavity.