Which of the following are the correct statement for respiration in human
Options
(a) Cigarette smoking may lead of inflammation of bronchi (b) Neural signals from pneumotaxic centre in pons region of brain can […]
Which two of the following changes (a-d) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more)? (i) Increase in red blood cell size (ii) Increase in […]
Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?
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(a) One can breathe out air totally without oxygen (b) One can […]
Which one of the following is one of the paths followed by air/O₂ during respiration in an adult male Periplaneta americana as it enters the animal body?
Options
(a) Hypopharynx, mouth, pharynx, trachea, tissues […]
What is true about RBC s in humans?
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(a) They carry about 20-25 per cent of CO₂ (b) They transport 99.5 per cent of O₂ (c) They transport about 80 per cent oxygen […]
Arteries are best defined as the vessels which:
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(a) supply oxygenated blood to the different organs (b) break up into capillaries which reunite to form one visceral rogan (c) break up in […]
ABO blood groups in humans are controlled by the gene I. It has three alleles – Iᴬ Iᴮ and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can […]
The most popularly known blood goruping is the ABO grouping. It is named ABO and not ABC, becaue “O” in it refers to having
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(a) overdominance of this type on the genes […]
What is true about Nereis, scorpion, cockroach and silver fish?
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(a) They all posses dorsal heart (b) None of them is aquatic (c) They all belong to the same phylum (d) They […]
Given below is the ECG of a normal human. Which one of itss components in human is correctly interpreted below
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(a) complex QRS – One complete Pulse (b) Peak T – Inititation […]
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